LIGHT DUTY TRUCK WIRING DIAGRAM BOOKLET ST

Transcription

1 1988 LIGHT DUTY TRUCK WIRING DIAGRAM BOOKLET ST

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3 1 WIRING DIAGRAMS 2 WIRING DIAGRAMS DESCRIPTION All diagrams in this manual are based n the latest prduct infrmatin at the time f publicatin apprval. The right is reserved t make changes at any time withut ntice. 9A 0.5 BRN SUBJECT PAGE Descriptin... 2 Tracing Circuits... 2 Basic Electric Circuits... 2 Circuit Diagnsis... 6 Abbreviatin List Diagnstic Tls... 9 Wire Size Cnversin Table On-Vehicle Service Circuit Maintenance and Repair...11 Weather Pack Cnnectrs Metri-Pack Cnnectrs...12 Wiring Repair...14 Special Tls...15 WIRE CIRCUIT NUMBER WIRE SIZE IN SQ. MM. I COLOR OF WIRE INSULATION BLK...Black PPL...Purple BRN...Brwn TR...Tracer CHK...Check YEL...Yellw CR...Crss I I...Parallel G RN...Green W HT...White N A T...Natural BLU...Blue S G L...Single STR...Stripe ORN...Orange PNK...Pink GR...Gray DK...Dark Figure 1 Wire Cding F VEHICLE SECTION C/K Mdels...A-1 G Van... B-1 S/T Mdels...C-1 R/V Mdels...D-1 P Chassis... E-1 M Van... F-1 The diagrams are t be traced frm the surce f electricity (the battery psitive pst) t grund. The grund may be a chassis grund n a certain cmpnent (such as an alternatr r a starter), r a wire frm a cmpnent t a chassis r frame grund (such as used n the electrnic cntrl mdule and instrument panel). All grunds are cnnected t the negative battery pst thrugh bdy and/r engine grund wires and straps. Many times the surce f the electricity is shwn as the ignitin switch r the fuse blck. This is dne t eliminate the cnfusin that wuld ccur if the entire pwer distributin was shwn in each circuit. Fr a detailed utline f the pwer t the ignitin switch r the fuse blck, refer t the pwer distributin circuit. The grund prtin f the circuit (usually circuit 150 r 151) may be shwn entirely, r it may refer t the grund distributin circuit in rder t avid cnfusin f listing all the grunds in ne splice n a single page. Fr ease f diagnsis, all splices and grunds are identified by number, and all the wires in a cmmn splice r grund are identified by circuit number, size (in mm) and clr. Each cmpnent r circuit cmmn t s spliced wire is called ut by the page number f that circuit. This will help identify and diagnse multiple electrical prblems that culd ccur in a truck. All cnnectrs are shwn with their part numbers t save time when rdering these parts. Switches are shwn in their at rest psitins, unless therwise marked. TRACING CIRCUITS Figures 1 thrugh 3 are examples f hw the wiring diagrams are laid ut, and will be referred t, thrughut this descriptin. In rder t trace a circuit n these diagrams, start frm the surce, the battery. In figure 2, the battery psitive circuit is a 19.0 mm black wire. This wire runs frm the battery t the starter mtr, and supplies pwer t the starter mtr pst. Once yu have determined the surce f pwer t yur cmpnent, frm the Pwer Distributin Circuit (figure 2), then refer t the individual circuit yu are wrking n fr mre detail abut that circuit. (Figure 3 shws the starting circuit). In figure 3, the starter mtr circuit is shwn. This circuit shw s the b a tte ry feed cm ing frm the Pwer Distributin page. The cable cmes frm the battery t the starter psitive pst. At the starter pst, ther circuits such as the generatr, ignitin switch, and electrnic cntrl mdule are fed. When the ignitin switch is in the start psitin, pwer flws frm circuit #2 thrugh the switch, t circuit #6. C ircuit #6 ges thrugh the clutch switch with an autmatic transmissin. At the clutch switch the circuit is pened, unless the clutch is depressed. At the slenid the current flwing frm circuit #6, clses the slenid, allwing current t flw frm the battery at circuit #1 t the starter mtr. The current flwing t the starter mtr, causes the starter mtr t spin. BASIC ELECTRICAL CIRCUITS An electrical circuit starts frm a supply f electricity back t a lad and then cnducts the electricity back t the supply f electricity. There shuld be a device t pen and clse the circuit, and a prtective device t pen the circuit in case t much current is drawn int the circuit by an verlad cnditin. Electrical circuits can be set up as series circuits, parallel circuits r series/parallel circuits. The circuits in trucks are usually parallel circuits.

4 WIRING DIAGRAMS 3 WIRING DIAGRAMS 4 - IH M /N V IS 'C C - N U 9 M 0 S - s c - 1XM/NV1 9 -ce - - X18/WW B 6C - Xlfl/XNd B'-6C ' < -Q 9 B 0 S Q3UO'C-Z - - Xlfl/WU 8 6E - m a i s s i n j s t u s s 'Q a (CK O O K M i J L -L i.1.1.a p 2 : f t k l 3 5 F r J j - Xlfl/XNd 8 6C <k a Ui E iu (9 «Xlfl/XNd 8 6C - p fgl jl l ml i i ks mr M mu dm t a IDEOn E B h e m m r H I) n si BID W 3 i i m I 1 t u< t _L T < TO ECM t - 1 «0 9 9 s n s 9 / - Tdd s-9 00 * isnu S9 < a. SjjO nx iu 2 «F F Figure 2 Pwer Distributin Figure 3 Starter System

5 WIRING DIAGRAMS 5 WIRING DIAGRAMS 6 3 path. Fr example the switch cntrlling the headlights is at the pwer end f the circuit while the dr switch cntrlling the dmelight cmpletes the grund path. Relays are remtely cntrlled switches. They are used in high current circuits and in circuits cntrlled by sensrs. Relays are designed s that a small current circuit will be able t cntrl a large current circuit. 1. Battery 2. Parallel Circuit 3. Lad 4. Switch 5. Series Circuit Figure 4 Basic Circuits B SERIES CIRCUITS (Figure 4 and 5) In a series circuit, the electrical devices are cnnected tgether t frm ne current path t and frm the pwer supply. In a series circuit the same current flws thrugh all f the devices. PARALLEL CIRCUITS (Figure 5) In a parallel circuit, the electrical devices are cnected t frm mre than ne current path t and frm the pwer supply. In a parallel circuit the supply vltage is the same in each current path. SERIES/PARALLEL CIRCUIT (Figure 5) A series/parallel circuit cnsists f a single current path circuit and a circuit with mre than ne current path t and frm the vltage supply. CIRCUIT COMPONENTS (Figure 6) The usual circuit path starts at the pwer supply which is the battery/generatr system. Next in the circuits is the circuit prtectin cmpnent which can be a fusible link, a fuse, r a circuit breaker. Then the circuit ges t the circuit cntrller which can be a switch r a relay. Frm the circuit cntrller the circuit ges int the circuit lad. The circuit lad can be ne light r many lights in parallel, an electric mtr r a slenid. After the electricity has passed thrugh the lad it must return t the pwer supply via the grund path. The grund path can be a wire in the harness r it culd be thrugh the lad husing int the bdy r frame, thus returning the electricity t the pwer supply. The bdy and frame are cnnected by flexible grund straps. FUSIBLE LINK Figure 5 Series/Parallel Circuits A fusible link is a sectin f wire that is usually fur gage sizes smaller than the circuit it prtects. A special insulatin is used that swells when heated by the wire. Fusible links are usually fund in the engine cmpartment harnesses. The functin f the fusible link is t melt pen when an verlad ccurs, thus preventing any damage t the circuit. Figure 6 Circuit Cmpnents FUSES (Figure 6) The mst cmmn prtectr in the vehicle circuit is a fuse. A fuse cnsists f a fine wire r strip f metal inside a glass tube r plastic husing. The strip melts and interrupts the flw f current in the circuit when there is an verlad caused by an unwanted shrt r grund. The fuse is designed t melt befre the wiring r electrical cmpnents in a circuit can be damaged. Naturally, the cause must be lcated and crrected befre the fuse is replaced r the new fuse will als blw. Since different circuits handle different amunts f current, fuses f varius ratings are used. Fuses are rated in amperes. Be sure t replace a blwn fuse with a fuse f the cnnecting rating. CIRCUIT CONTROLLERS (Figure 7) C ircu it c ntrlle rs cnsist f sw itches r relays. Switches are usually perated by a mechanical means such as a hand r lever. Switches are usually at the beginning f a circuit but can be used t cntrl a grund CIRCUIT BREAKERS (Figure 7) Circuit breakers are anther frm f circuit prtectr. There are tw types f circuit breakers; autmatic reset and remte reset. The autmatic reset breaker pens when excess current heats a bimetallic strip, causing the strip t bend and pen a set f cntacts. Then the strip cls and clses the cntacts. S the circuit breaker pens and clses until the excess current cnditin is crrected r the circuit is discnnected frm the pwer supply. The remte reset circuit breaker has a heating wire wund arund the bimetallic strip. When an excess current happens, the strip heats, bends, and pens the cntacts. Then a small current flws thrugh the heating wire, keeping the strip ht and the cntacts pen. This type f breaker will stay pen until either the pwer supply is discnnected frm the circuit r the breaker is remved frm the circuit. Then the breaker can cl and reset. CIRCUIT LOADS (Figure 7) Circuit lads are the cmpnents that use mst f the energy in circuit. The energy cnverts t mtin, light, r heat. Lights, mtrs, and engine heaters are the mst cmmn lads in circuits. CIRCUIT DIAGNOSIS A clear understanding f the circuit and a wiring diagram are needed fr effective diagnsis. Use a lgical sequence f testing t find the truble. Use the diagnstic tls. After the truble is fixed, make sure the circuit wrks crrectly. CIRCUIT MALFUNCTIONS There are three electrical cnditins that can cause a nnwrking circuit; an Open Circuit, a Shrt C ircuit, r a Grunded Circuit. OPEN CIRCUIT (Figure 8) An pen circuit ccurs whenever there is a break in the circuit. The break can be crrsin at the cnnectr, a wire brken ff in a device, r a wire that burned pen frm t much current. SHORT CIRCUIT (Figure 9) A shrt circuit happens when the current bypasses part f the nrmal circuit. This bypassing is usually caused by wires tuching, salt water in r n a device such as a switch r a cnnectr r slder melting and bridging cnductrs in a device.

6 WIRING DIAGRAMS 7 WIRING DIAGRAMS 8 The fllwing is a list f abbreviatins used in the wiring diagrams. The abbreviatins have been develped in such a way that their meaning shuld be clear. Use this page as a reference t determine the meaning f an abbreviatin if necessary. A Ampere A/C Air Cnditiner ACC Accessry A.I.R. Air Injectin Reactin AIR/COND Air Cnditiner ALDL Assembly Line Diagnstic Link ALT Alternatr AMP Ampere ANTI Anticipate ASM Assembly ASS Y Assembly AUD Audi AUTO Autmatic AUX Auxiliary BAT Battery BATT Battery BI-LEV Bi-Level BLK Black BLT Belt BLU Blue BOT Bttm ABBREVIATION LIST ED CIRCUIT (Figure 10) A grund circuit is like a shrt circuit but the current flws directly int a grund circuit that is nt part f the riginal circuit. This may be caused by a wire rubbing against the frame r bdy. Smetimes a wire will break and fall against metal that is cnnected electrically t the grund side f the pwer supply. A grunded circuit may als be caused by depsits f il, dirt and misture arund cnnectins r terminals, which prvide a gd path t grund. BRK Brake BRN Brwn BU Backup BUZZ Buzzer CIR/BRK Circuit Breaker CIRC Circuit CLSTR Cluster CNTL Cntrl COMP Cmpartment COMP Cmpressr CONN Cnnectr CONV Cnvenience CTS Y Curtesy CYL Cylinder DK Dark DIAG Diagnstic DIM Dimmer DIR Directinal DISC Discrete DIST Distributr DIV Diverter DM Dme DR Dr ECM Electrnic Cntrl Mdule EFE Early Fuel Evapratin EGR Exhaust Gas Recirculatin ELEC Electric ELEC Electrnic CNTRL Cntrl MOD Mdule ENG Engine EPR Exhaust Pressure Regulatr ESC Electrnic Spark Cntrl EST Electrnic Spark Timing EVRV Electrnic Vacuum Regulatr Valve EXC Except F-PUMP Fuel Pump FLASH Flasher FRT Frnt 4WD Fur Wheel Drive GEN Generatr GRA Gray GRD Grund GRN Green HAND Handling HAZ Hazard HD Heavy Duty HD LP Headlamp HEI High Energy Ignitin HI High HTR Heater IAC Idler Air Cntrl IGN Ignitin ILLUM Illuminatin l/p Instrument Panel INC Increased IND Indicatr INJ Injectr INST PNL Instrument Panel INTER Interir LD Light Duty LH Left Hand LO Lw LP Lamp LPS Lamps LT Light LTR Lighter M Mtr MAN Manual MAP Manifld Abslute Pressure MAX Maximum MED Medium MRKR Marker MULT Multiple NAT Natural NEUT Neutral NO Nrmally Open NC Nrmally Clsed ORN Orange PK Park PLR Puller PNK Pink PNL Panel PPL Purple PRESS Pressure PWR Pwer RCVR Receiver REF Reference RESIST Resistance RH Right Hand RPO Regular Prductin Optin SEN Senser SEND Sender SIG Signal SIL Silver SKT Scket SOL Slenid SPEEDO Speedmeter STR Stripe SW Switch TACH Tachmeter TBI Thrttle Bdy Injectin TCC Trque Cnverter Clutch TEMP Temperature T/L Tail Lamp TRANS Transmissin TYP Typical V Vlt VAC Vacuum VLV Valve VSS Vehicle Speed Sensr W/ With W/O Withut W/S Windshield W WASHER Windw Washer WDO Windw WHT White WRG Wiring YEL Yellw

7 WIRING DIAGRAMS 9 WIRING DIAGRAMS 10 DIAGNOSTIC TOOLS VOLTS VOLTMETER SCALE: 0 V lts th r u g h 15 V lts A = 3 Vlts B = 7 Vlts C = 13 Vlts UNPOWEREO TEST LIGHT (Figure 12) This tl cnsists f a 12 vlt light with leads. The ends f the leads usually have alligatr clamps, but varius kinds f prbes, terminal spades, and special cnnectrs are used als. The unpwered test light is used n an pen circuit. One lead f the test light is grunded and the ther lead is mved arund the circuit t find the pen. Depending n the physical layut f the circuit, smetimes it will be easier t start at the pwer supply and ther times it is easier t start at the circuit lad r grund circuit. POWERED TEST LIGHT (Figure 11) This light is a pencil shaped unit with a self cntained battery, a 1.5 vlt light bulb, a sharp prbe and a grund lead fitted with an alligatr clip. This test light is used mainly fr testing cmpnents that are discnnected frm the vehicle pwer supply. The pwer test light is als useful fr testing suspected high resistance pints in a circuit such as cnnectrs and grund circuits that are crrded r lse. JUMPER The jumper is usually a lng wire with alligatr clamps. A versin f the jumper has a fuse hlder in it with a 10 Amp fuse. This will prevent damaging the circuit if the jumper is cnnected in the wrng way. The jumper is used t lcate pens in a circuit. One end f the jumper is attached t a pwer surce and then the ther end is attached t the lad in the circuit, i.e.; light, mtr. If the lad wrks, try jumping t circuit pints that are prgressively clser t the pwer supply. When the circuit lad stps wrking, the pen has been lcated. The jumper is als used t test cmpnents in the circuit such as cnnectrs, switches, and suspected high resistance pints. NOTICE: The f ll w in g instrum ents: Am m eter, V ltm e te r, a n d O h m m e te r, e a ch h a ve a p a rtic u la r a p p lic a ti n f r tr u b le s h tin g electrical circuits. When using a am m eter r vltm eter, and the value being tested is unknw n always use the highest scale first and w rk dw nw ard t a m idscale reading whenever pssible. This w ill avid damage t the instrum ent. Never use an hm m eterr in a pw er circu it, r as a substitute f r a vltm eter r am m eter as damage t the instrum ent w ill result. AMMETER (Figure 12 and 15) Discnnect the circuit frm the pwer surce befre cnnecting the ammeter. The ammeter measures the amunt f electrical current, amperes, mving thrugh a cnductr. The ammeter must be placed in series with the circuit being tested. Be sure that the ammeter s psitive terminal is cnnected t the psitive (battery) side f the circuit and is negative terminal t the negative (grund) side f the circuit. OHMMETER (Figure 13 and 15) The hmmeter is an instrument designed t indicate resistance in hms. It is used t test the cnditin f a unit discnnected frm the circuit. Ohmmeter Calibratin When the hmmeter prbes are cnnected tgether, a circuit is cmpleted causing the meter needle t deflect. The needle shuld read ZERO hms, if it des nt, rtate the CAL r ADJ knb t ZERO the needle. When the prbes are held apart, the needle mves t the maximum (infinite) resistance side f the scale. The meter is nw ready fr use. Refer t figure 14 fr a typical applicatin f the hmmeter. VOLTMETER (Figures 14 and 15) The v ltm eter (prp erly bserved) w ill give the technician mre infrmatin than the ammeter, hmmeter and test light cmbined. Its applicatin fr trubleshting here is t measure the electrical pressure (vltage) drp in a resistance circuit (figure 14). T use a vltmeter fr trubleshting an electrical prblem, cnnect it in parallel with the existing circuit (figure 10). If the vltmeter is cnnected in series with the circuit being tested, the nature f the circuit wuld be changed and the reading wuld have n particular value r use. Cnnect the meter terminals accrding t plarity as shwn in figure 14. The dash munted vltmeter (in the vehicle) shuld als be bserved fr mnitring prper peratin f the generatr battery cranking mtr, and cranking circuit. In this applicatin, battery vltage drp can be mnitred while the engine is cranking; and after the engine is running, generatr utput vltage can be mnitred. This can be a valuable first step prir t diagnsing ther electrical prblems. WIRING HARNESS AND WIRES Every wire is a specific size with clred r striped insulatin that is indicated n the wiring diagrams. Insulatin clrs help t trace circuits and t make prper cnnectins. A bbreviatins and sym bls used fr indicating wire insulatin clrs and patterns are as fllws: BLK Black BLU... Blue BRN......Brwn PPL. CHK......Check TR.. C R......Crss YEL. GRN...Green II.... N A T......Natural WHT S G L...Single STR. O R N......Orange PNK..Yellw.Parallel.Stripe..Pink..Dark G R Gray DK.. Sme wires are gruped and taped tgether r encased in a split plastic casing. This gruping f wires is called a harness. Fr sme purpses, it is mre practical t use a single wire prtected by a braided tubing called a lm. AMPERES AM M ETER SCALE: 0 A m peres th r u g h 10 A m peres E = 1 Am pere F = 1.8 A m peres G = 9 A m peres OHM M ETER SCALE: 0 O hm s th r u g h In fin ity ( ) H = 5 O hm s I = 36 O hm s J = 115 O hm s K =350 O hm s Figure 15 Meter Scales F-01778

8 WIRING DIAGRAMS 11 WIRING DIAGRAMS 12 Wiring harnesses are jined by using a multiple plug and receptacle cnnectr blck, r a term inal pst chassis junctin blck. In the instrument panel area plastic insulated blade-type cnnectrs and screw-type terminals are used. Each harness r wire must be held securely in place by clips r ther hlding devices t prevent chafing f the insulatin. WIRE SIZE Wire size in a circuit is determined by the amunt f current, the length f the circuit and the vltage drp allwed. Wire size is specified using the metric gage. The metric gage describes the wire size directly in crss sectin area measured in square millimeters. CIRCUIT MAINTENANCE AND REPAIR MAINTENANCE AND REPAIR All electrical cnnectins must be kept clean and tight. Lse r crrded cnnectins may cause a discharged battery, difficult starting, dim lights, and pssible damage t the generatr and regulatr. Wires must be replaced if insulatin becmes burned, cracked, r deterirated. T splice a wire r repair ne that is frayed r brken always use rsin flux slder t bnd the splice and insulating tape t cver all splices r bare wires. When replacing wire, it is imprtant that the crrect size wire be used as shwn n applicable wiring diagrams r parts bk. Each harness r wire must be held securely in place t prevent chafing r damage t the insulatin due t vibratin. Never replace a wire with ne f a smaller size r replace a fusible link with a wire f a larger size. WIRING CONNECTOR TERMINAL REPLACEMENT (BLADE TYPE) Remve r Discnnect (Figure 16) 1. Terminal lck tang. 2. Terminal (61). Install r Cnnect (Figure 17) 1. Pry up n the tang (70). 2. Terminal int the cnnectr. WIRE SIZE CONVERSION TABLE METRIC SIZE (mm) ON-VEHICLE SERVICE AWG SIZE Figure 16 Remving the Terminals frm the Cnnectr WIRING CONNECTOR TERMINAL REPLACEMENT (TWIN LOCK TYPE) Remve r Discnnect (Figure 18) Tl Required: J Terminal Remver 1. Cnnectr lck tangs. 2. Terminal lcks using J Terminal. Install r Cnnect 1. Pry ut the tangs. 2. Terminal int the cnnectr. Figure 17 Resetting the Lck Tang WEATHER-PACK CONNECTORS Special cnnectrs knwn as Weather-Pack cnnectrs (figure 19) require a special tl J fr servicing. This special tl is required t remve the pin and sleeve terminals. If remval is attempted with an rdinary pick, there is a gd chance that the terminal will be bent r defrmed. Unlike standard blade-type terminals, these terminals cannt be straightened nce they are bent. Make sure that the cnnectrs are prperly seated and all f the sealing rings in place when cnnecting the leads. The hinge-type flap prvides a back-up, r secndary lcking feature fr terminals. They are used t imprve the cnnectr reliability by retaining the terminals if the small terminal lck tangs are nt psitined prperly. Mlded-n-cnnectrs require cmplete replacement f the cnnectin. This means splicing a new cnnectr assembly int the harness. Envirnmental cnnectins ca n n t be re p la ce d w ith sta n d a rd c n n e c ti n s. In s tru c ti n s are p rvided w ith the W eather-p ack cnnectr and terminal packages. With the lw current and vltage levels fund in sme circuits, it is imprtant that the best pssible bnd at all wire splices be made by sldering the splices. Use care when prbing the cnnectins r replacing terminals in them, it is pssible t shrt between ppsite terminals. If tnis happens t the wrng terminal part, it is p ssib le t' at dam age m ay be d ne t c e rta in c m p n e r :. Alw ays use ju m p e r w ire s betw een cnnectrs fr circuit checking. Never prbe thrugh the Weather-Pack seals. When diagnsing fr pssible pen circuits, it is ften difficult t lcate them by sight because xidatin r terminal misalignment are hidden by the cnnectrs. Merely wiggling a cnnectr n a sensr r in the wiring harness may crrect the pen circuit cnditin. This shuld always be cnsidered when an pen circuit is indicated while trubleshting. Intermittent prblems may als be caused by xidized r lse cnnectins. METRI-PACK CONNECTORS The Metri-Pack cnnectrs use a pull-t-seat type terminal, as shwn in figure 19. The special tl required t remve the terminal is J A terminal remver. If remval is attempted with an rdinary pick, there is a gd chance that the terminal will be bent r defrmed. Refer t figure EE Remve r Discnnect (Figure 19) Tl Required: J Terminal Remver Primary lck (121) by lifting. Cnnectr sectins. Secndary lck (125) by spreading the sides f the hasp, thus clearing the staples and rtating the hasp (127). Terminal (131) by using J (128). Snip ff the ld terminal assembly. 5 mm f the wire insulatin (130). Clean Terminal barrel (124). Install r Cnnect (Figure 19) Terminal insulatr (134) n the wire. Slide the insulatr back n the wire abut 8 cm (3 inches). Terminal (131) n the wire. Rll crimp (132) and slder the terminal. Terminal insulatr (134) and the rll crimp (133). Terminal int the cnnectr. Secndary lck (125). Cnnectr sectins until the primary lck (121) engages. METRI-PACK CONNECTOR REPLACEMENT Remve r Discnnect (Figure 19) Tl Required J A Terminal Remver 1. Primary lck (121) by lifting. 2. Cnnectr bdy (137). 3. Cnnectr seal (120) by pulling the seal back nt the wires away frm the cnnectr bdy (137).

9 WIRING DIAGRAMS 13 WIRING DIAGRAMS , V \ , / VIEW A VIEW B C nnect r Seal m m (0.2 inch) 121. Prim ary Lck 131. Term inal 122. Secndary Lck Staple 132. Rll C rim p 123. Secndary Lck 133. Rll C rim p 124. Term inal Barrel 134. Term inal In su la t r 125. Secndary Lck 136. M etri-p ack Series 150 Fem ale Term inal 126. Lck Opened 137. C n n e ct r Bdy 127. Lck Opened 138. L cking Tang 128. J Terminal Remver 139. J Term inal Rem ver 129. W ire Figure 19 Weather-Pack and Metri-Pack Cnnectrs 139 F B 90. Jacket 91. Twisted Wires 92. Splice Clip 93. Crimp and Slder 94. Electrical Tape Wrap 95. Outer Electrical Tape Wrap. Figure 20 Twisted Wire Repair B Terminal (136) by inserting J (139) int the cnnectr bdy (137) t depress the lcking tang (138), then push the wire and terminal thrugh the cnnectr bdy (figure 20). Snip ff the ld terminal unless the terminal is t be reused, reshape the lcking tang mm (0.2-inch) f the wire insulatin (130). Clean Terminal cavity f the cnnectr bdy. Install r Cnnect (Figure 19) 1. Terminal (136) n the wire. Crimp and slder the terminal. 2. Terminal (136) int the cnnectr cavity by pulling the wire n the seal side f the cnnectr until the lcking tang (138) is fully seated. 3. Seal (120) by pressing the seal int the cnnectr bdy (137) until it is fully seated. 4. Cnnectr until the primary lck (121) engages. WIRING REPAIR The wire repair is very imprtant fr the cntinued reliable peratin f the vehicle. This repair must be dne as described in the fllwing prcedures. Twisted Wires (Figure 20) «+ Remve r Discnnect 1. Jacket (90). 2. Twisted wires (91). 106 V Jacket 101. A lu m in um /M yla r Tape 102. Drain W ire 103. S plice C lip 104. C rim p and S lder 105. E lectrical Tape Wrap 106. Drain W ire S plice Clip, C rim ped And S l dered O uter E lectrical Tape Wrap. B Figure 21 Twisted/Shielded Wire Repair 3. Insulatin frm the wire. Install r Cnnect 1. Splice clip (93). Crimp. Slder. 2. Electrical tape wrap (94) n wires. 3. Outer electrical tape wrap (95). Twisted Wires/Shielded Cable (Figure 21) Remve r Discnnect 1. Jacket (100). 2. Unwrap aluminum/mylar tape (101). 3. Drain wire (102). 4. Leads. 5. Insulatin n the leads. +«- Install r Cnnect 1. Splice clips (103). 2. Crimp and slder the splice clips (104). 3. Electrical tape (105) n the splices.

10 WIRING DIAGRAMS Aluminum/mylar tape by wrapping and taping. 5. Drain wire with a splice clip (106). Crimp and slder the splice clip. 6. Outer jacket electrical tape wrap (107). SPECIAL TOOLS

11 1988 C/K TRUCK SECTION A PAGE DESCRIPTION PAGE DESCRIPTION 2 POWER DISTRIBUTION (GASOLINE) 34 ELECTRONIC CONTROL MODULE (ECM)-OUTPUTS (DIESEL) 3 POWER DISTRIBUTION (DIESEL) 36 ECM CHART (DIESEL) 4 AUXILIARY BATTERY(RPO TP2) 38 AUTO TRANSMISSION KICKDOWN SOLENOID (M40) 5 FUSE BLOCK 39 HEATER 6 CONVENIENCE CENTER 40 AIR CONDITIONING 7 HEADS & PARKING S (BASE) 42 BRAKE WARNING SYSTEM 8 HEADS & PARKING S (QUAD) 43 INSTRUMENT PANEL S (ELECTRONIC) 9 MARKER S (QUAD ONLY) 4 4 INDICATOR S (ELECTRONIC) 11 ROOF MARKER S 46 SEAT BELT WARNING BUZZER 12 HAZARD S 47 FOUR WHEEL DRIVE INDICATOR 14 DIRECTIONAL S 48 DOME S 16 HORNS 49 CONVENIENCE LIGHTING PACKAGE 17 START 50 CARGO 18 START (DIESEL) 51 RADIO EQUIPMENT 19 IGNITION 52 RADIO EQUIPMENT 20 THROTTLE BODY INJECTION 53 POWER WINDOWS 21 HOT FUEL HANDLING 54 REAR DEFOGGER 22 GLOW PLUGS (DIESEL) 55 POWER DOOR LOCKS 24 ENGINES CONTROLS (DIESEL) 56 WIPER/WASHER 26 FUEL CONTROL & IDLE AIR CONTROL 57 CRUISE CONTROL 27 AUXILIARY COOLING FAN 58 REAR WHEEL ANTI-LOCK 29 ELECTRONIC CONTROL MODULE (ECM)-INPUTS 59 BACK-UP S 30 ELECTRONIC CONTROL MODULE (ECM)-OUTPUTS 61 END GATE & SIDE CLEARANCE S 32 ECM CHART 62 TAIL S 33 ELECTRONIC CONTROL MODULE (ECM)-INPUTS (DIESEL) 64 LICENSE S INDEX SECTION A -PAGE 1

12 d- - a - 03; O r 9i ; e>r.a; i SPLICE 2 ^ A W<» -' M w V :' X» -I < j V BLK BLK SHEET METAL GRD REAR POWER DISTRIBUTION LB4, L03, L05, L19 SECTION A-PAGE 2 AUXILIARY BATTERY RPO-TP2 (IF EQUIPPED) SHEET METAL FUSE BLOCK

13 n n n n + SHEET + - RH METAL LH BATTERY GRD BATTERY FRONT FUSE BLOCK REAR POWER DISTRIBUTION LH6, LL4 DIESEL SECTION A-PAG E 3

14 JUNCTION BLOCK A O O V J O RUST FUSIBLE LINK ' SPLICE 2 tedoocgdoo Cgp I J0*_J tcm tgtt 1** M f EDO G C i D 0 GCi O O D C 0 0 m s Q Q O O O O O O»T 0 fh A I C M M II II II II II" II II II L L " FRONT I T BRN- 1 T a/is f f l / B H /E f il/ll E /E e / e e / ts E /E E /E REAR RUST FUSIBLE LINK ' SPLICE 2 FUSE BLOCK TO HEATER A/C SPLICE 50 AUXILIARY BATTERY BLK- 5 ) D Ui C * FROM PANEL DIMMER SWITCH FROM LH JAMB SW FROM HEATER A/C BLK FROM RADIO FROM CIGAR LIGHTER FROM SEAT BELT SW 2*S BLKa n a s west»<wamr m c*unt it f le f u f r O M EW MfOQ tfam I Mt* MfOO -I B *» ANT SC*M0 L* - jj n* * c SffitWii * t e On 2 CL CO 0 01 WOO 4WMII10I AUXILIARY BATTERY RELAY RED- S BLK/RED- GROMMET A A A A A FROM CONVENIENCE CENTER Q Q3 (H3 Q a C3GD 3 CD a CONVENIENCE CENTER l L r ID BRN BLK BRN - 150*.8 BLK - AUXILIARY BATTERY RPO TP2 SECTION A -PAGE 4

15 B R N -H E A TE R -A IR CONDITIONING 40.8 ORN/WHT-INTERIOR LPS RED-IGN SW -BATT ORN LT SWITCH-CONV CENTER ORN IGNITION BRN-IGN SW -A C C BRN/WHT-REAR WHEEL ANTILOCK W H T -W /S WASHER WIPER 43.8 YEL-RADIO PNK POWER WINDOWS BRN-IGN SW -A C C 60.8 ORN/WHT-POWER/ACC RED-IGN SW -BATT PPL/WHT-CRANK PPL-STARTER SOLENOID FEED 39.8 PNK/BLK IGN SPLICE PNK IGN SW -IG N SHUNT (TYP.) DK BLU-DIR SIGN FLASHER 75.8 DK BLU-BACKUP SW PNK/WHT ECM/IGNITION PNK IGN SW -IG!N N I RED-INJECTOR " A ^ J 44.8 DK GRN-LT SW RHEOSTAT GAS ENGINES ONLY FRONT 8.35 GRA-PANEL S RED-BATTERY ORN-HAZARD FLASHER REAR FUSES AMP COLOR TAN RED LT BLU YEL WHT FUSE BLOCK SECTION A-PAGE 5

16 8.5 GRA -----CRUISE CONTROL 39.8 PNK/BLK BRN BLK ORN/BLK TURN SIGNAL FLASHER BLK/WHT 40.8 ORN WHT WHT DK BLU DK BLU BLK DOME 16.8 PPL POWER DOOR LOCKS REAR DEFOGGER HORN RELAY POWER WINDOWS REAR DEFOGGER CARGO POWER WINDOWS INTERIOR COURTESY S AUXILIARY BATTERY RELAY INTERIOR COURTESY S BLK 9.8 BRN BLK ORN ORN/BLK ORN/BLK 28-5 BLK DK GRN PNK BRN FOUR WHEEL- DRIVE POWER DOOR LOCKS YEL BLK BLK- ROOF MARKER- S 8.35 GRA ORN LT GRN- S f f l Gp 9.8 BRN BLK AUDIO ALARM MODULE 39-8 PNK/BLK- FRONT REAR CONVENIENCE CENTER SECTION A-PAGE 6

17 FROM ENGINE COOLANT FAN (L19 ONLY RIGHT HAND HIGH & LOW BEAM HEADS LEFT HAND HIGH & LOW BEAM I Z HEAD FROM WINDSHIELD WASHER PUMP HEAD S & PARKING S (BASE) SECTION A-PAG E 7

18

19 RH SIDE MARKER JUNCTION BLOCK DIESEL TO RIGHT HAND PARK & TURN SIGNAL S TO LEFT HAND PARK & TURN SIGNAL S Z 2 a: a. m cd CO 2 cc CO A O) 0> O ij SPLICE LH SIDE MARKER MARKER S (QUAD ONLY) SECTION A -P A G E 9

20 SECTION A-PAG E 10 V

21 JUNCTION BLOCK A r*j 0 -, O - - V GAS SPLICE 2 y I _j (/) LU Ui w HI LJ t -> 5 * * Q O J U J? CD OC O O W r- 1- < CS$2 I O UJ QC O / DIESEL ONLY FUSIBLE LINK RED GROMMET l~? 0 * ~ l 0 \ Q )~ 3 S * ~ ) 0 0 Q *» ~ l \ AC HT* ***** 0 Ca G C i D 0 C! 0 0 C ^ ) 0 D O Q rfcj * MMl l*s G s 3 0 GAS ENGINES ONLY I ii ii ii ii FRONT ENGINE j RED- 130* c T l FUSE BLOCK SPLICE 2 r I a a / l l i t 51/11 51/E 51/S 51/S REAR SPLICE RED ORN RED BRN - TO CONVENIENCE CENTER TO CIGAR LIGHTER HEADS SWITCH FROM PANEL DIMMER SWITCH FROM LH JAMB SW FROM HEATER A/C FROM RADIO FROM CIGAR LIGHTER FROM SEAT BELT SW BLK - j CD FROM l/p CLUSTER CONNECTOR FROM CONVENIENCE CENTER SPLICE 150 RIGHT HAND MARKER FRONT IDENTIFICATION < C * FRONT IDENTIFICATION TERM TERM TERM TERM TERM TERM TERM x si s» " V» H * Z CD s 00 O in m ^»- Ift i IT) TO CONVENIENCE CENTER TO RADIO FRONT IDENTIFICATION TO A/C Z cc GO 9-8 BRN - DIESEL ONLY I I TERM «CO 00 tf> in l/p TERM : J : r i «L D ] r : : CONVENIENCE CENTER 9.8 BRN Q Q 3» jn 3 isl?3it q 3 I bf»l r*l i»i a BLK LEFT HAND MARKER WHT TERM BLK WHT BLK ROOF MARKER S SECTION A-PAGE 11

22 FROM RH HEAD (BASE) > l/p CLUSTER CONNECTOR FROM LH HEAD (BASE) HAZARD S SECTION A-PAG E YEl * 18.8 YEL -

23 R.H. TAIL, STOP, TURN Lf) FRAME L.H. TAIL, STOP, TURN SIGNAL & BACK UP CAB-CHASSIS ONLY HAZARD S SECTION A-PAGE 13

24 FROM RH HEAD (BASE)» BLK FROM ENGINE COOLANT FAN (L19 ONLY) FROM RH HORN BLK 51.8 DK BLU * a RH SIDE MARKER (QUAD) FROM PANEL DIMMER SWITCH D d ~ D O O 0 O ^ D A X MTU O O O d O O O B C,sO OQ O 01 G O O O D O D O O O IT O fm *; nr ir ii.'in: n~ n ii ii - t FRONT O BLK " IT IT s / e a /» 51/E 5L/U H/TE 51/S SI/TS Si/TS 51/13 51/19 ^ FUSE BLOCK REAR wmt l/p CLUSTER CONNECTOR BLK DK BLU SPLICE BLK j a * a c in 4 RIGHT HAND PARK & TURN SIGNAL S I CD * FROM CONVENIENCE CENTER CONVENIENCE CENTER I B BLK LT BLU 15.8 DK BLU LT BLU l/p > a 00 (STEERING COL. SWITCHES) LEFT HAND PARK & TURN SIGNAL S (D; FROM WINDSHIELD WASHER PUMP FROM LH HORN (QUAD) BLK FROM RH HEADS (QUAD) { FROM LH HEAD (BASE) DIRECTIONAL S SECTION A-PAG E BLK ' 14.8 LT BLU LH SIDE MARKER (QUAD) \ s 12 J I L 9,3 t 3 ] r 12 ) B 92 9 i : : DK GRN 18.8 YEL DK GRN DK GRN YEL 16.8 PPL 15.8 DK BLU 14.8 LT BLU / f s DIRECTIONAL SIGNAL SW 19.8 DK GRN 18.8 YEL YEL

25 R.H. TAIL. STOP, TURN BLK O J > 00 _J - I CO CQ CO 00 Ifl tf> FRAME 120B9200 L.H. TAIL, STOP, TURN SIGNAL & BACK UP CAB-CHASSIS ONLY DIRECTIONAL S SECTION A-PAGE 15

26 BLK FROM RH PARK & TURN SIGNAL S HORN RELAY 17 p N 19 IB M 18 1 "16 L K 27 FROM ENGINE COOLANT FAN (LI 9 ONLY) 15 J 15 5L 14 H II - 28 G F e 159 D HAZARD RIGHT HAND HORN (BASE & QUAD) DK G RN DK GRN BLK DIRECTIONAL SIGNAL SW TO CIGAR LIGHTER ORN LEFT HAND HORN (QUAD ONLY 29 ( DK GRN DK G R N cc * Q S l/e /11 B l/i) 51/E l/p S l/s 51/E SI/TS I X ) O O O O GBD 0 0 O O TOP MAI» II " II H II II II CRANK 51/E S l/e R FROM LH PARK & TURN SIGNAL S BLK L D] h 0 r : 24 ; 5 6 FRONT FUSE BLOCK REAR HORN SECTION A PAGE 16 FROM LH HEAD

27 2 32 BLK G«Q Ci5Q QsC) D D Q.pQ O O C5* J O D MJ* PANEL IPS t D D GiO D Q QO stf w cm* ii n ~ ii ii ii ii 11 r r - T T AUXILIARY BATTERY RP0-TP2 (IF EQUIPPED) SHEET ( Q ) METAL FRONT FUSE BLOCK REAR START LB4, L03, L05, LI9 SECTION A-PAGE 17

28 n n _ n n _j_ ~h SHEET RH METAL LH BATTERY GRD * BATTERY O ] ENGINE " GRD FRONT FUSE BLOCK REAR START LH6, LL4 DIESEL SECTION A-PAGE 18

29 FROM AIR SWITCH ^ PNK BLK B6 REAR IGNITION LB4, L03, L 05, LI9 SECTION A -PAGE 19

30 OXYGEN SENSOR 465 = 4 3 * 7 7» THROTTLE POSITION SENSOR BLK - SPLICE 452 J Z TO COOLANT TEMP SENSOR BLK PPL S »0 ELECTRONIC CONTROL MODULE CONNECTORS DK BLU OK BLU GRA GRA BLU TO MAP SENSOR GRN RED INJECTOR BLU RED- SPLICE > RED GRN RED WHT ENGINE D f O O 0 * 0 O 0 0 * 0 O O 0 * Q Q Q ^ i O D ICR KM M M IP s m i Q O 0 1 M L IP 1 M * 1 IQ Q 0 QsQ Q D OO tienta II II II II II II u..i I -g FRONT c«mk U I f a / a / S l/b Sl/M) Sl/TS si/h e / e a /is i si/b a /is......j E- REAR FUSE BLOCK RED THROTTLE BODY INJECTION LB4, L03, L05, LI9 SECTION A-PAG E 20

31 HOT FUEL HANDLING MODULE FUEL PUMP IGNITION TAN/WHT 39.8 PNK/BLK BLK/WHT TO l/p CLUSTER CONNECTOR TO CONVENIENCE CENTER USPLICE 39 ELECTRONIC CONTROL MODULE CONNECTORS TAN/WHT kgfs O O K ) 0 ^0 A C HTR U Lf a/is m dp t * X 5 2 < K Op sah q 0 q Q C l 0 O O CTb> Q«"i G O C2 *j O Q Q s O A c T 0 Q 0 0 Q l Q 0 0 D C STCH* H*7 - - CMNK II II H ' IE FRONT n ii ri~ FUSE BLOCK a / 51/B si/a a/is a / s a/e sitb a/is 4. J L REAR FROM ESC ILB4. L03. L05I E 3 ED [ED fw l 0 _ i I» r a I llfil >'E3 TO ECM AUXILIARY COOLING FAN RELAY { L I9 & C60) ENGINE 39.8 PNK/BLK i/p < (- <*> i h a r*n ] [5 3,4EHI [ j l 6 f * * 0 ( t - z j BLK/WHT - [ I 3 40 IS I 2 31 F i f f IB I U ? 12 J 1 1 f 9f , L Dl r 93? : FUEL METER & PUMP SPLICE 450 \ lakuuix BLK/WHT FROM EVRV SOL FROM ALOL BLK/WHT TAN/WHT TAN/W HT- FROM FUEL PUMP RELAY HOT FUEL HANDLING (L05, LI9) SECTION A-PAGE 21

32 FROM A/C COMP (IF EQUIPPED) FROM W/S WIPER MOTOR BLK BLK - ENGINE GRA GRA FROM RWAL MODULE FROM FUEL PRESSURE SWITCH FROM WATER IN FUEL SENSOR FROM RH BATTERY ( - ) FUSIBLE LINK RIGHT BANK GLOW PLUG SPLICE 509 SPLICE 503 TO FUEL PUMP RELAY PPL/WHT SPLICE 509 GC GLOW PLUG CONTROLLER O R N LT GRN/BLK BLK TO GLOW - PLUGS WAIT SPLICE GRN- SPLICE RN- HI cc i FROM LH BATTERY (- LEFT BANK GLOW PLUG TO COLD ADVANCE -4- SOLENOID & COLD ADVANCE CONTROL RELAY GLOW PLUGS-LH 6 DIESEL SECTION A-PAGE 22 JUNCTION BLOCK & -+ V BLU----- FUSIBLE LINK SPLICE 2

33

34 COLD ADVANCE FAST IDLE TEMPERATURE SWITCH l/p CLUSTER CONNECTOR FUEL PRESSURE WATER IN FUEL SENSOR FUEL HEATER DIESEL ENGINE CO NTRO LS-LH6 SECTION A -P A G E PNK/BLK-

35 COLD ADVANCE CONTROL l/p CLUSTER CONNECTOR FUEL PRESSURE WATER IN FUEL SENSOR FUEL HEATER J 39.8 PNK/BLK - DIESEL ENGINE CONTROLS LL4 SECTION A-PAGE 25

36 IDLE AIR CONTROL (L19) HOT FUEL HANDLING MODULE TO CONVENIENCE CENTER IDLE AIR CONTROL STEPPER MOTOR <S> 442 Pnrn _ 443 I IDLE AIR CONTROL (LB4, L03, L05) FUEL PUMP RELAY FUEL CONTROL & IDLE AIR CONTROL LB4, L03, LOS, LI9 SECTION A-PAGE ORN ,0 PNK/BLK IN-LINE FUSE

37 JUNCTION BLOCK A O O - V 2.5 RED- L FUSIBLE LINK SPLICE BLK/WHT- TO HOT FUEL HANDLING MODULE l/p CLUSTER CONNECTOR ':; U U n 4 00 w u 31 n u,n 937 z 14 e n 39 <e OD 15 u - n 9> * u> 25 LJ11 n 6 * u b A ' 38-8 PNK/BLK 1 SPLICE PNK/BLK AUXILIARY COOLING «7 FAN RELAY : II J 1 1 ft : 18 " ? 9 1 L 3 >] b 0 r 937? :? / 5 8 TO CONVENIENCE CENTER DK GRN \ AUXILIARY FAN TEMP SWITCH 39.8 PNK/BLK- v T sp SPLICE BLK/RED BLK/WHT. U AUXILIARY COOLING FAN BLK FROM RIGHT HAND HEAD (BASE) B LK SPLICE FROM RIGHT HAND HEADS (DUAL) G i O O G C i A-C MTU C "G OO Qmj O 0 CCMK3N m io O PA*K I f c c I O O O O O 0 MJ A PANCt L «O O O O GsD 0 O O STOP HA2 II II II II CRANK II II W E E/MI S l/e S l/b S l/e a/e a/e s /tsi GO/S a/e RH FROM RH HORN FROM RH PARK & TURN SIGNAL S FRONT FUSE BLOCK AUXILIARY COOLANT FAN LI9 &C60 SECTION A-PAGE 27

38 SECTION A-PAGE 28

39 THROTTLE POSITION SENSOR OXYGEN SENSOR 0 1 S t-i 2 5 * u r 1 UkOCS di 0, r a,0. i 2 0 A T i l * ftu * C MTU CTSV 0 1 m 1 U2SJ 0 ECMIGN M K D O PAM I f 1 > 0 * 1 0 L 5-A J MJ A H M l L»S 0 0 D 0 GsO D STOPHA2 FRONT FUSE BLOCK (L05. L19 ONLY) ELECTRONIC CONTROL M O D ULE-INPUTS LB4, L 03, L05, LI9 SECTION A -P A G E 29

40 ELECTRONIC SPARK TIMING EST SIGNAL EST REF. PULSE HI EST BYPASS EST REP. PULSE LO WHT PPL/WHT TAN/BLK STEPPER MOTOR 441 <S> \ I 444 IDLE AIR CONTROL (LB4. L03. L05) LT GRN/WHT LT BLU/BLK LT BLU/WHT LT GRN/BLK E.V.R.V. (L05, LI9, LB4 HEAVY DUTY ONLY) BLK/WHT GRA PNK/BLK IDLE AIR CONTROL (LI9) 444 I44? I n i I i I W i LT GRN/BLK LT GRN/WHT LT BLU/WHT LT BLU/BLK BLK/WHT BLK/WHT WHT WHT AIR SW ITCH PNK/BLK BRN SPLICE PPL/WHT TAN/BLK BLK/RED G R A BRN PPL/WHT TAN/BLK BLK/RED GRA GRA BRN BRN BRN TAN LB4.L03 ONLY BLK/WHT BLK/WHT INJ GRN WHT GRN BLU DK GRN/WHT TAN/WHT GRN BLU DK GRN/WHT TAN/WHT PNK/BLK PNK/BLK BLU RED- SPLICE PNK/BLK RED/WHT RED ORN ORN PNK/BLK RED/WHT RED ORN ORN PNK/BLK BLK/WHT BLK/W HT---- FUEL PUMP OIL PRESSURE SWITCH PNK/BLK ORN RED/WHT TO HOT FUEL HANDLING MODULE (L05.L19) TO FUEL METER & PUMP TAN/WHT LB4.L03 ONLY ' * «t c a DK GRN/WHT FUEL PUMP RELAY PNK/BLK BLK/WHT ORN ELECTRONIC CONTROL MODULE-OUTPUTS LB4, L03, L05, LI9 SECTION A-PAGE 30 V SPLICE 920 "T \ PNK/BLK IN-LINE FUSE EGR SOLENOID LB4.L03 ONLY

41

42 CIRCUIT NO. WIRE SIZE COLOR CAVITY DESCRIPTION CIRCUIT NO. WIRE SIZE COLOR CAVITY DESCRIPTION DK GRN/WHT A1 FUEL PUMP RELAY DRIVE A2 NOT USED A3 NOT USED GRA A4 EGR SOLENOID BRN/WHT A5 SYSTEM CHECK PNK/BLK A6 12V IGNITION FUSED * TAN/BLK A7 AUTO TRANS KICKDOWN RELAY TAN/BLK A7 UPSHIFT ORN A8 SERIAL DATA WHT/BLK A9 ASS Y LINE DIAG. LINK BRN A 10 SPEED SIGNAL PPL A 1 1 5V RETURN A BLK/WHT A12 SYSTEM RETURN ORN B1 12V BATTERY FUSED TAN/WHT B2 ELEC FUEL PUMP FUSED FEED BLK/RED B3 DISTRIBUTOR REF LOW B4 NOT USED PPL/WHT B5 DISTRIBUTOR REF HIGH B6 NOT USED YEL/RED B7 SPARK RETARD CONTROL 59.8 DK GRN B8 AIR CONDITION B9 NOT USED * ORN/BLK B10 PARK/NEUTRAL SWITCH B11 NOT USED B12 NOT USED * AUTO TRANS ONLY C1 NOT USED BRN C2 AIR SWITCH SOLENOID LT GRN/BLK C3 STEPPER COIL B LOW LT GRN/WHT C4 STEPPER COIL B HIGH LT BLU/WHT C5 STEPPER COIL A HIGH LT BLU/BLK C6 STEPPER COIL A LOW * LT BLU C7 AUTO TRANS KICKDOWN RELAY C8 NOT USED PPL/WHT C9 CRANK DISCRETE FUSED YEL C10 COOLANT TEMPERATURE LT GRN C11 MANIFOLD ABSOLUTE PRESS C12 NOT USED DK BLU C13 THROTTLE POSITION SENSOR GRA C14 5 V SENSOR REFERENCE C15 NOT USED ORN C16 12V BATTERY FUSED BLK/WHT D1 SYSTEM RETURN BLK D2 5V RETURN B D3 NOT USED WHT D4 HEI SPARK TIMING TAN/BLK D5 HEI BYPASS TAN D6 OXYGEN SENSOR LOW PPL D7 OXYGEN SENSOR HIGH D8 NOT USED D9 NOT USED D10 NOT USED D11 NOT USED D12 NOT USED D13 NOT USED GRN D14 INJECTOR B DRIVE D15 NOT USED BLU D16 INJECTOR A DRIVE * AUTO TRANS ONLY (MD8 ONLY) ELECTRONIC CONTROL MODULE LB4, L03, L05, LI9 SECTION A-PAG E 32

43 ENGINE SPEED SENSOR TO ECM COOLANT TEMP SENSOR THROTTLE POSITION SENSOR QsSb ip T U M p r 0 0 A C MTU CT*v GO 1 i f l f t DO 0 IC N IM tm rt> OBO 0 0 GO M M t IPS 0 CD 0 0 U *«J H O f*u U 0 FRONT FUSE BLOCK REAR TO STOP/ TCC SWITCH SPLICE 439 TO COLD ADVANCE RELAY ELECTRONIC CONTROL M ODULE-INPUTS LH6 DIESEL SECTION A -PAGE 33

44 COLD ADVANCE GLOW PLUG INHIBIT RELAY TRANSMISSION CONVERTER CLUTCH SOLENOK) COLO ADVANCE CONTROL « LT GRN/BLK - SPLICE LT GRN/BLK - SPLICE OK GRN PPL PNK/BLK - ENGINE GRD BLK - FROM A/C * COMPRESSOR FROM RWAL Z Q. MODULE 00 FROM W/S 0) WIPER MOTOR DK GRN DK GRN BLK PNK/BLK - EGR DUMP : 7 t ^ LT BLU PNK/BLK - SPLICE PNK/BLK PNK/BLK PNK/BLK i PNK/BLK - EGR VALVE k c S i GRA PNK/BLK EPR VALVE : k c ] 53R PNK/BLK DK GRN DK GRN TO COLD ADVANCE/ FAST IDLE TEMP SWITCH l/p GLOW PLUG CONTROLLER ELECTRONIC CONTROL MODULE-OUTPUTS LH6 DIESEL SECTION A-PAG E ,8 LT GRN/BLK BLK ? i t 9 H L I TO CONVENIENCE CENTER *- i 00 2

45 TO ECM FRONT FUSE BLOCK REAR SPLICE 439 ELECTRONIC CONTROL M ODULE-OUTPUTS LH6 DIESEL SECTION A -PAGE 35

46 CIRCUIT NO. WIRE SIZE COLOR CAVITY DESCRIPTION LT GRN A1 MANIFOLD ABSOLUTE PRESS DK BLU A2 THROTTLE POSITION SWITCH YEL A3 COOLANT TEMP. SENSOR A4 NOT USED A5 NOT USED BLK A6 ASS Y LINE DIAG. LINK A7 NOT USED WHT A8 ENGINE SPEED SENSOR BRN A9 SPEED SIGNAL WHT/DK GRN A10 DRIVE A11 NOT USED GRA A12 5V REF. VOLT B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED CIRCUIT NO. WIRE SIZE COLOR CAVITY DESCRIPTION BLK C1 SYSTEM RETURN BLK C2 SYSTEM C3 NOT USED C4 NOT USED * TAN/BLK C5 TORQUE CONVERTER CLUTCH C6 C7 NOT USED C8 NOT USED C9 NOT USED GRA C10 EGR DIAGNOSTIC CONNECTOR LT BLU C11 EGR SOLENOID DK GRN C12 EPR SOLENOID C13 NOT USED PNK/BLK C14 12V IGNITION FUSED C15 NOT USED ORN C16 12V BATTERY FUSED D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15 D16 NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED * AUTO TRANS ONLY ELECTRONIC CONTROL MODULE LH6 DIESEL SECTION A-PAG E 36

47 SECTION A-PAGE 37

48 - r JUNCTION BLOCK A O O V LU c FUSIBLE LINK < > SPLICE RECTIFIER ASSEMBLY - 0 h PPL SPLICE 420 RESISTOR 510 OHM.50 WATT SPLICE LT BLU _ c P & 1..i ) H 4 2 * ] 5 -J u. 4)71 7..J* ) - > 'SS I " I ' 2 I h H 1 *,6I l» 1 4 7** } TO ECM TRANSMISSION KICKDOWN RELAY PPL GROMMET CN CM (N ^ ^ ^ Q. 00 *4 * TAN/ SPLICE TAN/BLK ELECTRONIC CONTROL MODULE CONNECTORS < (- TRANSMISSION KICKDOWN SOLENOID REAR BRAKE ANTI LOCK MODULE CONNECTOR PPL ( ) E H STOP/TCC SWITCH CONNECTOR i3r TO ALDL TO FOUR WHEEL DRIVE HARNESS (IF EQUIPPED) PPL PPL AUTOMATIC TRANSMISSION KICKDOWN SOLENOID (GAS ENG. ONLY) SECTION A-PAGE 38

49 HEADS SWITCH 8.5 GRA BLK HEATER TO CONVENIENCE CENTER *.5 GRA BLK HEATER LT BLU BRN ORN BLOWER SWITCH YEL CD Ift O *_J CD O in < a u> 00 2! 9 u> «00 u> YEL LT BLU ORN r «i i ONLY BLK BRN - SPLICE ORN ORN LT BLU I I C42 ONLY L OJ r» la U) r L-J RESISTORS I I I FROM INST CLUSTER CONN ORN FROM RADIO BLOWER MOTOR BLK HEATER SECTION A -P A G E 39

50

51 SPLICE TO CONVENIENCE CENTER 00 CO <T> Ol TO RADIO TO BULKHEAD CONNECTOR A/C CON TROLLER BATT DIM PARK IGN PRESS. SW A WD F/B POT VOLT TO MTR TO MTR TO F/B POT 902 MD MTR MD MTR RD MTR RD MTR RD F/B POT FAN REL # FAN REL # A/C CLUTCH REL MODE DOOR MOTOR TEMP DOOR MOTOR AIR INLET VALVE RED 66-8 DK GRN BLK/WHT RESISTOR GRA BLK BRN BLOWER RELAY #1 BLOWER RELAY # 2 BLOWER MOTOR AIR CONDITIONING SECTION A-PAGE 41

52 33.5 TAN/WHT l/p CLUSTER CONNECTOR REAR WHEEL ANTI LOCK MODULE CONNECTOR 33.8 TAN/WHT IN-LINE DIODE (POWER BRAKES ONLY) 33-5 TAN/WHT >GD BRAKE PRESSURE WARNING SWITCH TAN/WHT SPLICE TAN/WHT L SPLICE 33 MANUAL BRAKES ONLY 33.5 TAN/WHT 33*.5 TAN/WHT I ) I I ID t l [ III I v> 12 L J, 11 I < m r n CC PARK BRAKE SWITCH CLOSED WITH PARK BRAKE ON BRAKE WARNING SYSTEM SECTION A-PAG E 42

53 HEADS SWITCH A/C CONT ROLLER BATT. - 2 DIM - 8 PARK - 9 IGN PRESS. SW A MD F/B POT VOLT TO MTR TO MTR TO F/8 POT MD MTR MO MTR RD MTR RD MTR RD F/B POT FAN REL # FAN REL # A/C CLUTCH REL >966 ILLUMINATION HI-BEAM LEFT TURN RIGHT TURN ALTERNATOR FUEL GAGE OIL PRESS PARK/ANTI-LK ENGINE TEMP IGN SEAT BELT LP. -SPEED SENS HI SPEED SENS-LO SERVICE ENG. SPEED SIGNAL (CRUISE) SPEED SIGNAL (ECM) IGN SHIFT LP. SPEED SIGNAL (RWAL) INSTRUMENT PANEL CLUSTER (GAS ENGINES) ILLUMINATION li-beam LEFT TURN RIGHT TURN ALTERNATOR FUEL GAGE OIL PRESSURE PARK/ANTI-LK ENGINE TEMP IGNITION LOW COOLANT SEAT BELT LP SPEED SENS-H I SPEED SENS-LO SPEED SIGNAL (CRUISE) SPEED SIGNAL (ECM) IGNITION SERVICE ENGINE WAIT LP. W.I.F. SPEED SIGNAL (RWAL) INSTRUMENT PANEL CLUSTER (DIESEL ENGINES) INSTRUMENT PANEL S SECTION A -P A G E 43

54

55 8 ILLUMINATION 1 1 HI BEAM 14 -LEFT TURN 15 -RIGHT TURN 25 -ALTERNATOR 30 -FUEL GAGE 31 -O IL PRESSURE 33 -PARK/ANTI LK 35 -ENGINE TEMP 39 -IGNITION 69 -LO W COOLANT SEAT BELT LP SPEEO SENS HI SPEED SENS LO -SPEED SIGNAL (CRUISE) SPEED SIGNAL (ECM) IGNITION -SERVICE ENG SERVICE ENGINE WAIT LP. W I F. SPEED SIGNAL (RWAL) IGNITION SW ITCH INDICATOR S SECTION A -PAGE 45 ^

56 CONVENIENCE CENTER FROM PANEL DIMMER SWITCH FROM l/p CLUSTER CONNECTOR SEAT BELT RETRACTOR SWITCH FROM LH JAMB SW FROM HEATER A/C BLK BLK 238 l50 23a FROM RADIO fr m cig ar LIGHTER k k, FROM CONVENIENCE CENTER BLK BLK BLK BLK- TO CONVENIENCE CENTER TO BULKHEAD CONNECTOR TO l/p CLUSTER CONNECTOR SPLICE 39 - TO LOW COOLANT MODULE (DIESEL ONLY) PNK/BLK GAGES 20 AMP O QsO O 0 * G s O O 0 p p Q (CM IOM M t f DO WHU t * j p p 0 Q 0 *0 0 OOOOQ HU A PAML i n P O O O dc 0 0 ( *TO» HA I n - n - r r - r - n n FRONT I T IT EL/T5 SL/1B H /E Sl/M) E /E S l/s E /B Sl/TSl 51/19 B / E >... n I * REAR FUSE BLOCK SEAT BELT WARNING BUZZER SECTION A-PAGE 46

57 TRANSFER CASE SPEED SENSOR FOUR WHEEL DRIVE SECTION A -P A G E 47

58 RIGHT HAND JAMB SWITCH LIGHTING PACKAGE RPO 262/YE9 TR9 SPLICE 39 I I DOME TO LOW COOLANT MODULE (LH6 DIESEL) LEFT HAND JAMB SWITCH DOME & KEY-IN WARNING BUZZER SECTION A-PAG E TAN

59 5I/TS D J B / B a /is BLK WHT D 7 RIGHT HAND JAMB SWITCH E /E B /IS * STOP HAZ ' II» II II II II II ii rr &/TS t FRONT FUSE BLOCK REAR I TO CIGAR LIGHTER SPLICE 240 T v ORN ORN/WHT,. SPLICE 40 - TO CONVENIENCE CENTER TO RADIO TO LH JAMB SWITCH SEE DOME ' ORN 40 IJ II 11 r r*4_ ft J RIGHT HAND CTSY m m m HHIK MM L MUM)0«J mu Ml WHT ORN SPLICE 40 SPLICE N CONVENIENCE CENTER J i E l t l " B 1 Q nnfthl ftal Ia3tl C3 I bfwl fnsi m d if BRN BLK SPLICE N ORN BLK GLOVE BOX E CD BLK I- X S ORN HEADS SWITCH 9.8 BRN BLK ASH TRAY c : FROM l/p CLUSTER CONNECTOR FROM RADIO BLK FROM CIGAR, LIGHTER FROM SEAT BELT SW 00 FROM CONVENIENCE CENTER 9.8 BRN ' TO RADIO FROM LH JAMB SWITCH (SEE DOME LP-PAGE FROM HEATER A/C BLK BRN 'SPLICE fffl M HD IP - O N PARK - MO L P -O F F - PANEL & INTERIOR S CONTROL SW ORN WHT LEFT HAND CTSY CONVENIENCE LIGHTING PACKAGE RPO TR9 SECTION A-PAGE 49

60 PANEL DIMMER SWITCH CONNECTOR < ORN/WHT CARGO WHT O RN CONVENIENCE CENTER X 3 0 * 0 0 G s id Q 0 3 O O O P CD 0 jsa G a S O D O O PM (L IPS fe Q Q Q G» D Q Q D O STOP MAi -TT- i r - II ir n tr ' II ~TT FRONT FUSE BLOCK Gl/TS a l / B S l/s K l/b S/TS sbis a /B b / e I SLTE1 51/ *1 f REAR CARGO SWITCH CARGO (RPO UF2) SECTION A-PAGE 50

61 FROM PANEL DIMMER SWITCH RH FRONT SPEAKER ( LT GRN DK GRN - TO BULKHEAD CONNECTOR TO CONVENIENCE CENTER LF - SPEAKER _ 1 LF + SPEAKER _ 2 RF - SPEAKER 3 RF + SPEAKER GRA TAN LT GRN DK GRN - TO HEAD SWITCH TO PANEL DIMMER SWITCH TO A/C (IF EQUIPPED) AM RADIO UNIT 5 TAIL LC PK & S/MK FD _ 6 INST. PANEL LPS. 7 RADIO FEED 9 BATT FEED GRA LH FRONT SPEAKER TA N GRA FUSE BLOCK REAR RADIO (AM) SECTION A -P A G E 51

62 RH REAR SPEAKER RH FRONT SPEAKER 200 ( FROM l/p CLUSTER CONNECTOR LT GRN' DK GRN TO BULKHEAD CONNECTOR..PARK LP..DIMMER JGNITION.MEMORY (DATA) ' d a t a PARK LP. DIMMER POWER ANT IGNITION MEMORY IBATT.I TO CONVENIENCE CENTER _M U TE 8 _ L. AUDIO 9 _ R. AUDIO 10 LO 11 BATTERY 12 TAPE ON 13 DIMMER 14 HI 15 VOLT RECEIVER GRA TAIM REAR LH FRONT SPEAKER AM/FM STEREO WITH OPTIONS SECTION A-PAGE 52 { LH REAR SPEAKER

63 FROM PANEL DIMMER SWITCH FROM LH JAMB SW FROM HEATER A/C RIGHT W INDOW MOTOR 667 : O j : J ~ T BRN DK BLU BLK FROM RADIO FROM CIGAR LIGHTER FROM SEAT BELT SW CONVENIENCE CENTER AAA FROM CONVENIENCE CENTER RIGHT W INDOW SW ITCH 166 V 666 f " DOWN PNK DK BLU/WHT TAN n? ^ - UP BLK 4%. NEUTRAL EH- 0 a & PNK DK BLU/WHT TAN BRN DK BLU/WHT DK BLU PNK TAN BLK E l 9 5 l u 3 l ( IT I' U C 8 A mint..c i. M»>.»** «, i, w i» M j i & ' l i i i JLX, S W'OC 4M L. at**m>og J «,T C»GOl> ^ t i l M W BLK PNK- SPLICE PNK DK BLU/WHT TAN U B OH PNK DK BLU/WHT TAN BLK L l9 4 f > J U , l j L 9 5 j Q * c CN f e d Q G O O Q PNK ACC/IGN 30 AMP CIRCUIT BREAKER 0 D C ) n s T \ f * CUV Q a Q 0 i 0 D O s Q O O Q O Q Q MU * M KKl t H \ Q Q Q Q Q n O Q Q STOP HA 1 c ::ii u r n ii ir ii ic FRONT WMII kai J M ACC tn 1. : z r «C I «T " I c Z 3 y FUSE BLOCK I I L T E / E S l/ll - a / E 51/M l a / E a /E e / e a/s a /E JL REAR JL LEFT W INDOW SW ITCH DRIVER SIDE LEFT W INDOW SW ITCH PASSENGER SIDE DOWN DOWN ? 150 UP ? 150 UP LEFT W INDOW MOTOR % > -? VJ NEUTRAL NEUTRAL r t O O r + O O O EL O CL BLK DK BLU PNK SPLICE BRN TAN BLK DK BLU/WHT PNK BLK BRN DK BLU POWER WINDOWS SECTION A-PAGE 53

64 HEADS SWITCH BLK - TO CONVENIENCE CENTER REAR WINDOW BLK PPL TO LOW COOLANT MODULE (DIESEL) TO l/p CLUSTER CONNECTOR TO BULKHEAD CONNECTOR TO CONVENIENCE CENTER TO l/p CLUSTER CONNECTOR REAR DEFOG SWITCH 39.8 PNK/BLK BLK ORN PPL/WHT GRA PANEL LPS 5 AMP BLK ORN REAR DEFOGGER SECTION A -PAGE

65 FROM PANEL DIMMER SWITCH FROM LH JAMB SW FROM l/p CLUSTER CONNECTOR RIGHT LOCK MOTOR TAN GRA FROM SEAT BELT SW RIGHT LOCK SWITCH ? 60 < % > -? FF 6 f GRA BLK/RED T A N ORN/BLK- SPLICE 295 SPLICE 294 CONVENIENCE CENTER FROM CONVENIENCE CENTER, LOCK BLK/WHT ORN/BLK LT BLU UNLOCK NEUTRAL F t.f i] LT BLU BLK/RED ORN/BLK LT BLU" GRA GRA A - d i j ORN/BLK TAN ORN/BLK TA N---- FROM POWER WINDOWS i- z5 00 D ca Q2}»(5Tg ft&l fhal a r a b izd a BLK BLK LT BLU GRA T A N BLK/WHT ORN/BLK BLK LT BLU GRA TAN BLK/RED- * CD O \S P U C E ORN/WHT- P=l3^ ACC/BATT 30 AMP CIRCUIT BREAKER P» dci cr GCi j Q C i 0 D \ D C i CTSt I «q i q q s q 0 D sm i m * i* Q - d O O D O uu A PAN*l l»5 U /15 S l/t l H /E SL/TB 51/TS -51/S 51/TS 51/TS I LEFT LOCK SWITCH LOCK UNLOCK ? 60 ^ ? NEUTRAL a O O" j O j LT BLU- BLK BLK/RED ORN/BLK BLK- O Q O O 0 * 0 D STOPHAl "n - ti n ii ii ii ii n it * E l/'s S ir " M E... FRONT FUSE BLOCK REAR LEFT LOCK MOTOR > Jzq 294 J L - L_ T A N GRA- POWER DOOR LOCKS SECTION A-PAGE 55

66 w /s WIPER MOTOR WIPER SW ITCH WASHER PUMP FUSE BLOCK REAR (QUAD) W IP E R /W A S H E R SECTION A -PAGE 56

67 ENGINE l/p CLUSTER CONNECTOR REDUNDANT CRUISE RELEASE SWITCH FUSE BLOCK REAR CRUISE CONTROL (RPO K34) SECTION A-PAGE 57

68 TO TCC AUTO TRANS (DIESEL LH6 ONLY) l/p CLUSTER CONNECTOR RESISTOR 510 OHM.50 WATT REAR WHEEL ANTI-LOCK BRAKING SECTION A-PAGE 58

69 BACK-UP SWITCH (AUTO TRANS) STOP. TAIL 75' l 24 III cc a STOP. TAIL & TURN SIGNAL 1*0 24 BACK UP DK BLU l/p m cc a R.H. TAIL, STOP, TURN SIGNAL & BACK UP err J 33 2b I I L ( f : i s 1, 30 I D ] ~ ~ T r ; 24 / LT GRN 75.8 DK BLU MANUAL TRANS ONLY SPLICE 24 FROM RH SIDE MARKER LPS (R05) FROM RH LICENSE BLK g S Q l FROM LH J LICENSE» FROM LH SIDE MARKER LPS (R05) c a LT GRN 75.8 DK BLU AUTO TRANS ONLY CM 150 STOP. TAIL 18 I f IT Q Q 0 D D d O G ^ Q Q O d Q O G a / E k n N s51/11 i/m BACK-UP SWITCH (MAN TRANS) G C i 0 * 0 G C ) 0 D G O 0 D C D G O O O O O l d 0 0 STOPHA2 CUI ii ii- J im c,u. ii.a..u : * FRONT FUSE BLOCK 1/15 51/1) 51/ S l/e E /S 51/15 SUTS S l / E 51/ n p REAR L.H. TAIL, STOP, TURN SIGNAL & BACK UP BACK-UP S SECTION A-PAGE 59

70 RIGHT HAND BACK-UP BRN YEL DK GRN LT GRN C ZD FOR REMAINDER OF CIRCUIT. SEE BACK UP S FOR REMAINDER OF CIRCUITS. SEE BACK UP LPS DIRECTIONAL S- HAZARD S - TAIL S- 2 a. _ * Ul j Q > N N N z cc m (N WHT W HT- ) SPLICE 9.SPLICE BRN YEL TAIL & LICENSE LH STOP & DIR LP SPLICE DK BRN RH STOP & DIR LP SPLICE LT GRN BACK UP LP FOR REMAINDER OF CIRCUITS. SEE BACK UP LPS DIRECTIONAL LPS- HAZARD S- TAIL S B R N Y E L DK GRN LT GRN - 6 ) FRAME BACK UP S CAB-CHASSIS TRAILER-CAMPER WIRING RPO UY7 BACK-UP S SECTION A-PAGE 60

71 JUNCTION BLOCK RH FRONT CLEARANCE RH REAR CLEARANCE END GATE BRN LH FRONT CLEARANCE LH REAR CLEARANCE END GATE AND CLEARANCE S (USED WITH RPO R05 ONLY) SECTION A-PAGE 61

72 JUNCTION BLOCK DIESEL O 0 G C D * C MTU «( * E l/e O - -. V " G p - y GAS SPLICE 2 uj -J <A UJ UJ jg O a 3 (P -J X.8 * O C3 J U l 7 COCCS w r- «- < di plj 2 FUSIBLE LINK CTSY O 0 ^ 0 0 G O D C C D C S D C STO* WU... n ii " 'I ~n n~ * GAS ENGINES ONLY FRONT RED RED ENGINE FUSE BLOCK SPLICE 2 r REAR W U D SPLICE RED TO CONVENIENCE CENTER TO CIGAR LIGHTER cc CO HEADLAM PS SWITCH DIESEL ONLY i a TO CONVENIENCE CENTER I RED BRN- DIESEL O N L Y I : J 1 1 M I : L m r J TAIL S SECTION A-PAGE I BRN 9.8 BRN

73 TO RH SIDE CLEARANCE LPS (R05) TO LH SIDE CLEARANCE LPS (R05) R.H. TAIL, STOP, TURN SIGNAL & BACK UP 9-.8 BRN FROM RH SIDE CLEARANCE LPS (R05I FROM END GATE S CONNECTOR FROM LH SIDE CLEARANCE LPS (R05) x i CO 00 6 in FRAME L.H. TAIL, STOP, TURN SIGNAL & BACK UP CAB-CHASSIS ONLY TAIL S SECTION A-PAGE 63

74 JUNCTION BLOCK DIESEL A r J O --. V GAS SPLICE 2 O O ( 3 5 * ^ Q J UJ 9 c s O (/J r-,- < I I G UJ cc FUSIBLE LINK GROMMET r»» ~ i q C250 O D 0 G s O Q i C Q g Q 0 0 G a O 0 0 D O 0 D G 5 D 0 n ii n n~ GAS ENGINES ONLY FRONT RED RED O ENGINE FUSE BLOCK SPLICE 2 r ~ A I T siru El/IB SITE 51/E El/E REAR SPLICE RED z cc I f TO CONVENIENCE CENTER TO CIGAR LIGHTER *.J CO FROM RH TAIL, STOP, TURN : SIGNAL & BACKUP S FROM RH SIDE CLEARANCE LPS IR05) FROM END GATE S CONNECTOR BLK Q) FROM LH SIDE CLEARANCE LPS (R05), FROM LH TAIL, STOP, TURN 1SIGNAL & BACKUP S 9.8 BRN - RIGHT HAND LICENSE (STEP BUMPER ONLY) HEADLAM PS SWITCH BLK DIESEL ONLY TO CONVENIENCE CENTER I a U1 CC DIESEL * ONLY RED- -9,8 BRN HD LP - ON PARK HD LP - OFF BLK 9 8 BRN SPLICE 150 SPLICE BRN BLK TO RH TAIL, STOP, TURN SIGNAL & BACKUP S LEFT HAND LICENSE <»B 9-.8 BRN TO RH SIDE CLEARANCE LPS (R05) : L 3 ] r : TO END GATE S CONNECTOR TO LH SIDE CLEARANCE LPS (R05) TO LH TAIL, STOP, TURN SIGNAL & BACKUP S LICENSE S SECTION A-PAGE BRN

75 1988 G VAN S E C T I O N B P A G E D E S C R I P T I O N P A G E D E S C R I P T I O N 2 POWER DISTRIBUTION (GASOLINE) 42 TRANSMISSION CONVERTER CLUTCH DETENT SOLENOID 3 POWER DISTRIBUTION (DIESEL) 43 AUTO TRANSMISSION KICKDOWN SOLENOID (M40) 4 FUSE BLOCK DETAIL 44 AIR CONDITIONING (C60) 5 HEAD S & PARKING S 45 REAR AIR CONDITIONING (C69) 6 MARKER S 46 HEATER 8 HAZARD S 47 AUXILIARY HEATER (C36) 10 DIRECTIONAL S 48 BRAKE WARNING SYSTEM 12 HORN(S) 49 BRAKE WARNING SYSTEM (UJ1) 13 START (6 CYL.) LB4, (8 CYL.) L03, L05, L19 50 INSTRUMENT PANEL S (TELLTALE VERSION) 14 START (8 CYL.) LT9 & NB2 51 INSTRUMENT PANEL S (GAGE VERSION) 15 START (8 CYL.) LT9 & NA5 52 INSTRUMENT PANEL GAGES (TELLTALE VERSION) 17 START (DIESEL) LL4, LH6 54 INSTRUMENT PANEL GAGES (GAGE VERSION) 18 IGNITION (6 CYL.) LB4 56 INDICATOR S (TELLTALE VERSION) 20 IGNITION (8 CYL.) L03, L05, L19 58 INDICATOR S (GAGE VERSION) 22 IGNITION (8 CYL.) LT9 & NB2 60 DOME S 23 IGNITION (8 CYL.) L19 & NA5 61 AUXILIARY LIGHTING (TR9) STEPWELL & READING 24 THROTTLE BODY INJECTION 62 RADIO EQUIPMENT (STEREO) (UN3, UN8, UM6) 25 HOT FUEL HANDLING 63 RADIO EQUIPMENT (U63) 26 GLOW PLUGS (DIESEL) 64 SEAT BELT WARNING BUZZER 28 ENGINE CONTROLS (DIESEL) 65 POWER WINDOWS (A31) 30 FUEL CONTROL & IDLE AIR CONTROL (6 CYL.) LB4, (8 CYL.) L03, 66 POWER DOOR LOCKS (AU3) L05, L19 67 POWER DOOR LOCKS WITH DELAY MODULE (U3) 31 EMISSION CONTROLS (8 CYL.) LT9 & NA5 68 WIPER/WASHER 32 ELECTRONIC CONTROL MODULE (ECM)-INPUTS (6 & 8 CYL.) 69 PULSE WIPER/WASHER (CD4) 34 ELECTRONIC CONTROL MODULE (ECM)-OUTPUTS (6 & 8 CYL.) 71 CRUISE CONTROL (K34) 36 ECM CHART (6 & 8 CYL.) 72 BACK-UP S 37 ELECTRONIC CONTROL MODULE (ECM)-INPUTS (DIESEL) 74 TAIL S 38 ELECTRONIC CONTROL MODULE (ECM)-OUTPUTS (DIESEL) 76 LICENSE (S) ECM CHART (DIESEL) AUXILIARY COOLING FAN 78 TRAILER WIRING INDEX SECTION B-PAGE 1

76

77 6-5.0 PPL RUST & SIL (LL4I RED THERMO ILH6I" SPLICE 906 GLOW PLUG CONTROLLER TO CLUTCH START SWITCH TO TEMPERATURE STARTER MOTOR SOLENOID JUNCTION BLOCK 30 AMP/ FUSE DK BLU/WHT- TO TRAILER WRG RPO UY7 (IF EQUIPPED) r it. u r i< y» 0 j y u 1 V RED- >50 BLK- ALTERNATOR I t t * Pn ill. J FROM SPLICE (LH6) FROM SPLICE 150 (LL4) -5 0 BLK- ENGINE 3 BLK BLK BLK- Q ) SHEET METAL FORWARD REAR BATTERY BATTERY FRONT FUSE BLOCK REAR POWER DISTRIBUTION LL4, LH6 DIESEL SECTION B PAGE 3

78 DK GRN LT SW RHEOSTAT 8.5 GRA INSTR LPS BRN-AUX HEATER 43.5 YEL-RADIO, AUX. BAT PNK POWER WINDOWS PNK/BLK IGN (LT3/LL4 & M40) 39-8 PNK/BLK IGN SPLICE BRN-AUX HEATER-A/C RED PWR ACC ORN-STO P-H AZ ORN-IGN SW 43.5 YEL-RADIO BRN-IGN SW -A C C BRN-HEATER-A/C PNK-PWR WINDOWS 93.8 N A T-W /S WASHER WIPER PPL-DIR SIG SW DK BLU-IGN SW 75.8 DK BLU-BACKUP LP SW 38-8 DK BLU-DIR SIG ORN-BAT-FUSED HORN/DM PNK IGN SW -ENG & IGN 38.8 DK BLU-TURN/BU RED-BATTERY ORN-LT SW TAIL LPS ORN ECM B PNK/BLK ECM I PPL/WHT CRANK A PPL IGN SW START BRN/WHT OIL PRESSURE S W -IG N ORN-BATTERY NO BUS BAR WITH USAGE PRINTED FUSEBLOCK RED-IGN {WITH FUSE BLOCKH FUSE BLOCK SECTION B-PAGE 4 COLOR MALE CONN A BRN B BLK H DK GRA NAT L GRN P RED W BLU FUSES AMP COLOR TAN RED YEL WHT LT GRN LB4/L03/L05/L19 ONLY LT9 ONLY

79 RIGHT-HAND HIGH-LOW HEAD l/p CLUSTER CONN. (GAGE) l/p CLUSTER CONN. (TELLTALE) FROM AUX. COOLING FAN IL19 & C60) > RIGHT-HAND HIGH BEAM HEAD R.H. PARK & DIRECTIONAL L.H. PARK & DIRECTIONAL LEFT-HAND HIGH BEAM HEAD LEFT-HAND HIGH-LOW HEAD SHEET r- METAL GRN HEAD S & PARKING S SECTION B-PAGE 5

80 R.H. SIDE MARKER R H SIDE MARKER t r l - ^ PARK A FF> R.H. PARK & DIRECTIONAL TO l/p CLUSTER CONN. HfcAD " PARK Om Off r 1 y HEAD SWITCH 40.8 ORN c c BRN BACK UP R.H. PARK & DIRECTIONAL g a a FRONT FUSE BLOCK REAR > 9.8 BRN SPLICE LICENSE " 9.8 BRN - L.H. PARK & DIRECTIONAL 9-8 B R N ill 0 II 1 1 * mil J (t A rjccs 00 * * at ' 8 C BRN L.H. PARK & DIRECTIONAL TO l/p CLUSTER CONN ENGINE L.H. SIDE MARKER D C T i c I D CZl L.H. SIDE MARKER MARKER S SECTION B-PAGE 6

81 R.H. SIDE MARKER R.H. SIDE MARKER R.H. PARK & DIRECTIONAL LAM P R.H. PARK & DIRECTIONAL L.H. PARK & DIRECTIONAL L.H. SIDE MARKER MARKER S 2-DOOR CAB VAN G RPO E31, E34, E36, E38, & E39 SECTION B-PAGE 7

82 R.H. SIDE MARKER l/p CLUSTER CONN. (GAGE) l/p CLUSTER CONN. (TELLTALE) R.H. HIGHBEAM HEAD CONN. (DUAL HDLP ONLY) I B LK SPLICE 15 7 ; pj------tsi,. QD'Gs] 15 Q i l f a Q ] l l [ T ] in i I ll in i 1 H N 10 1 ^ 3 f] v 4 12 J I * 5 1^ llll E I l n E 3 D D l i S EDntiiD i r;76 i i f 7 LuJnuu ! 1 i 8 M u j >1 1 3B llll DK BLU BLK R.H. PARK & DIRECTIONAL LAM P L.H. PARK & DIRECTIONAL LAM P STOP SW ITCH m WHT - Q l D D i p 1 G H F ORN L.H. HIGH BEAM HEAD CONN. (DUAL HDLP ONLY) DUAL HEADS ONLY WHT 27.8 BRN LT BLU SHEET M ETAL G R D f HAZARD S SECTION B-PAGE L.H. SIDE MARKER LAM P y ( : L ( s 31 2 r DK BLU YEL DK GRN DIRECTIONAL SIGNAL SW

83 SPLICE TO BODY BUILDER WIRING REAR S CUTAWAY VAN G30003, E32 ROUTING FOR 2-DOOR CAB VAN G30003 RP0-E31, E34, E36, E38 & E DIRECTIONAL YEL OK GRN E a <*>ii <»iht i HDD YEL DK GRN- x *. «< mm LEFT-HAND TAIL STOP & DIRECTIONAL H3D G T GD cm* FF ii1 i i c C=] DD m nrr ' e m Q D G c l I U E } f i i «t f Am n h * CZD QDG [ZD GET ryi i i* DK GftN YEL HAZARD S SECTION B-PAGE 9

84 R H SIDE MARKER LAM P FUSE BLOCK l/p CLUSTER CONN. (GAGE) l/p CLUSTER CONN. (TELLTALE) DIRECTIONAL FLASHER R.H. HIGHBEAM HEAD CONN. (DUAL HDLP ONLY) FRONT I B LK SPLICE DK BLU B LK - R.H. PARK & DIRECTIONAL L.H. PARK & DIRECTIONAL l/p SHEET METAL GRD ( " n L w ( a 31 2 r DIRECTIONAL S SECTION B-PAGE DK GRN-

85 CUTA W A Y VAN G , E32 - r SPLICE TO BODY BUILDER WIRING REAR S ROUTING FOR 2-DOOR CAB VA N G RPO-E31, E 34, E 36, E38 & E39 - J = LU cc 00 Q c c d> < t I N E ififi ODD TAIL STOP & DIRECTIONAL YEL 19.8 DK GRN /T X L 1 T \ OK GRN q ah h r s V m» I» " C E P pr O y i i H F i e DK GRN YEL i DOD g» u i Sj LEFT-HAND TAIL STOP & DIRECTIONAL LAM P DIRECTIONAL S SECTION B-PAGE 11

86 HORN E n {STEERING COL SWITCHES! RPO Z62 TO DOME OR TAIL LP CONN. * a HORN RELAY > r ORN f c I p Im % J L BLK - HORN r t A J DIRECTIONAL SIGNAL SW m CRN TE (E IB CD fij E E E IB IB CD B GS E E WOO 1 HI [D ID 15 HI E M TT «N ACC i f * PW* l/p BLK TT t V L r : r ^ m r g i Tcm WKwB [aa] FRONT FUSE BLOCK REAR \ HORN SECTION B-PAGE

87 FUSE BLOCK START L B 4 -V 6, L03, L05, L 1 9 -V 8 SECTION B-PAGE 13

88 32 BLK 2.8 RED STARTER MOTOR SOLENOID JUNCTION BLOCK PPL- NOT USED WITH GAGES TO l/p CONN.' i/p CLUSTER CONN ) \ «19 l5 0 n l50 QDU 39 O D p E I d Sc e] TAN/WHT- TO PARK ^ BRAKE WARNING SW SPLICE 33 SPLICE RUST GENERATOR \ C 1 *1 M V 1 " *» - = f uj <n 3 «2-3.0 RED/WHT 5 uj ^ 3 SPLICE 2 a BRN - 3p.8 PNK/BLK---- ENGINE : : l/p it : lj I ,5 P L 3 ] r i : BRN- 6.5 PPL- 6.5 PPL- 2.5 RED- SPLICE 2 F T v Q Ml O LLI Oin OC c OC 9 9 c * PPL 5.5 YEL AMANUAL ONLY AUTO ONLY _ / in BRN DK GRN-? SPLICE I A l3q) *GftJ :i 3 J GRO ^n 1 L I GRD 2 f!it J I c z I- < f s r r r ^ h a * - j B A B < in 2.8 RED 2-8 RED ENGINE SPEED - SWITCH CLUTCH START SW ITCH MANUAL ONLY - 32 BLK 32 BLK 32 BLK - IGNITION SWITCH SHEET M ETAL ^ GRN ENGINE ( Q ) GRN START (8 CYL.) LT9 & NB2-V8 SECTION B-PAGE 14 FUSE BLOCK

89 SPLICE 33 FUSE BLOCK START (8 CYL.) LT9 & N A 5 -V 8 SECTION B-PAGE 15

90 SECTION B-PAGE 16

91 + + FORWARD REAR BATTERY BATTERY FUSE BLOCK START LL4, LH6 (DIESEL) SECTION B-PAGE 17

92 439.8 PNK/BLK- f PNK BLK BLK/RED PPL/WHT W HT BLK/RED PPL/WHT W H T TAN/SGL BLK TAN/BLK TAN/BLK PNK/BLK n - f l s > r a n D & UK COM. ASM SET TIMING CONN. GROMMET p e 460 -i s (443 ELECTRONIC CONTROL MODULE CONNECTORS DISTRIBUTOR TACHOMETER [*446 r e e f {432 «r 13( T O INJECTORS l/p r #» r 467 i t [440 TO HALF - FUNCTION ESC PNK/BLK- X RED- SPUCE PNK \ tt I (( y ' 2? PNK/BLK PNK PNK BRN BRN PNK/BLK SPLICE 39 TO KICK- DOWN RELAY PNK/BLK - TO EGR 'SOLENOID IGNITION LB 4 -V 6 SECTION B-PAGE 18 TO JUNCTION BLOCK ^TO AIR SWITCH

93 NOT USED WITH GAGES TAN/WHT. SPLICE 33 TO l/p CONN. 1 2 l/p 3 CLUSTER «CONN. b 6 ^ ^8 n rttnu H H IS E 3 u n m QHInEHl g d Uq ej DDntlLl D U p ] TO PARK BRAKE WARNING SW DK GRN- X 3 z< BRN- if> HEAD - 8 IGNITION KEY BATTERY SAFETY BELT SAFETY BELT 8U22ER I PNK/BLK- - TO VSS 39.5 PNK/BLK PNK/BLK- TO CHECK ENGINE LP AC C3 * a SPLICE TO BRAKE SW (AUTO ONLY) PNK«SPLICE BRN ORN PNK/BLK- * _i GO PNK PNK* c z a. c 0) c CO z c BRN CD Z * z CL CO CO IGNITION SW ITCH i PNK/BLK - pv n SHUNT th l [H 3_ Q Q ' Q B O H FRONT FUSE BLOCK REAR IGNITION LB 4 -V 6 SECTION B-PAGE 19

94 PNK/BLK PNK BLK- * - j c g CO d> c - O D BLK/REO PPL/WHT W HT TAN/SGL BLK TAN/BLK. SET TIMING CONN BLK/RED PPL/WHT W H T TAN/BLK - GROMMET I [ r ^ M 1 {H3 n ( 5 3 QD* [«D a» i «D J pittj 0I X ELECTRONIC CONTROL MODULE CONNECTORS C M ] A CH COIl ASM t- Ig - J *? n DISTRIBUTOR TO EVRV '(L 0 5 & L19 ONLY) TACHOMETER r H r TO INJECTORS TO HALF - FUNCTION ESC PNK/BLK- X RED- SPLICE PNK- t ( III r i 1 5 ENGINE in " J l/p h3 L ; \ (< r II J 3O ' ' PNK/BLK PNK PNK- f s r r r * D 25.8 BRN PNK/BLK SPLICE 39 TO HOT FUEL.HANDLING (L05 & L I 9 ONLY) ' TO KICK DOWN.. RELAY v 25-8 BRN PNK/BLK - GENERATOR IGNITION L03, L05, L 1 9 -V 8 SECTION B-PAGE TO JUNCTION "BLOCK TO EGR " s l e n id t T 0 AIR SWITCH TO AUX - COOLING FAN RELAY

95 NOT USED WITH GAGES. SPLICE 3 3 TO l/p CONN TAN/W HTl/P 3 CLUSTER ^ CONN. 5 EZ3UQ3 ODUGEJ QDnCE) U d i TO PARK BRAKE WARNING SW SEAT BELT BUZZER & TIMER HEAD - 8 IGNITION KEY BATTERY GROUMO ->150 SAFETY BELT SAFETY BELT BUZZER B Eh PNK/BLK - * BRN- - TO VSS 39.5 PNK/BLK PNK/BLK- TO CHECK ENGINE LP DK GRN z c O sca ir) 10 Z 5 z <»- u> SPLICE TO BRAKE SW (AUTO ONLY) PNK - SPLICE BRN ORN PNK/BLK - *3-3.0 PNK PNK ' 25.8 BRN PNK/BLK- * Z CL 0) CO * z Q. GO m z & a O Z c c j CO f IGNITION SW ITCH START R U N OFF LOCK ACC Q3pGs3 c f a c 3 " g re K i 3 0 D 3 dd FRONT FUSE BLOCK REAR IGNITION L03, L05, L 1 9 -V 8 SECTION B-PAGE 21

96 p L i 3 39 Y t S x ^ *symrm+ T bm TO JUNCTION BLOCK IGNITION LT9 & NB2- V8 SECTION B-PAGE 22 FUSE BLOCK

97 .4 GRD STRAP C Hi' ENGINE TO BODY GRN AIR CONTROLLER AIR SWITCH SOLENOID CHECK ENGINE. TACHOMETER TO COIL IGNITION SWITCH NOT USED WITH GAGES TO l/p CONN. l/p CLUSTER cm 33.5 TAN/WHT - QDflE! le E D nf71 m 160 n h 5 0 z f e U n t i l ] TO PARK BRAKE WARNING SW SPLICE DK GRN BRN. SEAT BELT BUZZER & TIMER 39.5 PNK/BLK LIGHTS ON IGNITION IGN. KEY BUZZER BATTERY FASTEN BELTS SEAT BELT SW PNK/BLK PNK/BLK TO VSS l/p I 9 i. l 12 J, U s * : L «s j r S bs PNK- IE IE E B IB El E H E B IS ID IB MO E ffi E CD E) (E) E ' Wwr i ji* i r*s* SMUN? SMUNT I i e s LjM L_ TO JUNCTION BLOCK FRONT FUSE BLOCK REAR IGNITION LT9 & N A 5 -V 8 SECTION B-PAGE 23

98 OXYGEN SENSOR THROTTLE POSITION SENSOR PPL BLK BLK DK BLU DK BLU- 4 ie GRA GRA LT. BLU LT. GRN PNK/BLK- INJECTOR BLU RED- TO EVRV L05 W/H.D. & L19 TO HALF FUCNT. ESC INJECTOR 2 V PNK/BLK RED GRN RED- (B 03 a a cn fflffie B ffls E ^ Em m a b e e0 i m 1 WHE PNK/BLK ENGINE L J ) 31 2 r i K 1 [M] ^ * C»»N«C-C*l»u»l 1 g g FRONT ta FUSE BLOCK P 3 EX3 B C 300 REAR THROTTLE BODY INJECTION SECTION B-PAGE 24

99 FUEL PUMP ASSEMBLY TAN/W HT BLK/WHT BLK/WHT f F f a 1 -{4 5 0 [ 1 E 3 : 3E 3 EH] * E135 E 3 EED«GE3 O S OGEED 10 F i " E D «*E3 (*f5l4eh) l r " 'i t ELECTRONIC CONTROL MODULE CONNECTORS IS ES Q] H 0 E E E [D B B B B QQ E B S B IB n /-i ru -ri HUMT SMUNT U r ut ui uj R *l (1«D I»* 1a* TO INST. CLUSTER (M l Q P f l ' 0 FUSE BLOCK P 3 E 3 B M REAR PNK/BLK. SPLICE 39 HOT FUEL HANDLING SECTION B-PAGE 25

100 GLOW PLUG S-LL4 DIESEL SECTION B-PAGE 26

101 PRODUCTION JUNCTION BLOCK GLOW PLUGS-LH 6 DIESEL SECTION B-PAGE 27

102 i n < f - O 1 _ SOLID 1 - STA TEj WATER IN FUEL SENSOR FUEL HEATER FUEL SHUT- OFF VALVE DIESEL ENGINE CONTROLS LH6 SECTION B-PAGE 28

103 FAST IDLE SOLENOID FUEL PRESSURE WATER IN FUEL SENSOR FUEL HEATER FUEL SHUT- OFF VALVE DIESEL ENGINE CONTROLS LL4 SECTION B-PAGE 29

104

105 RIGHT-HAND AIR DIVERT SOLENOID 936, ) REAR SIDE BLK ie C O I ENGINE YEL 39.8 PNK/BLK SPLICE 93 6 ' D YEL. AIR CONTROLLER IGNITION SWITCH TACHOMETER TO COIL CHECK ENGINE AIR SWITCH SOLENOID AIR DIVERT SOLENOID PNK/BLK- a BLK BRN/WHT. DISTRIBUTOR T * R CONNECTOR A Jsl WHT < n * YEL PNK/BLK SPLICE 39 TO l/p CLUSTER CONN AIR CLEANER TEMP SW ITCH t E) B S 13 S E E 0 S E E / O BD E m Q] E IB ATT IGM ACC ll*s p *R K ) r r RrJr Twnrj j j A j Q s a I [ W LEFT-HAND AIR DIVERT SOLENOID gau g es a u S k tw c st^haz T^T ] p 5*l P vst s 1 Rr.... D C I M 3 ' a CHAM CHOKE FUEL PUttm a a FUS K B FRONT FUSE BLOCK 3 ) C=3 REAR EMISSION CONTROLS LT9 & N A 5 -V 8 SECTION B-PAGE 31

106 THROTTLE POSITION SENSOR COOLANT TEMP SENSOR c e r SENSOR E.S.C. HYBRID FUNCTION OXYGEN SENSOR ELECTRONIC CONTROL MODULE-INPUTS L B 4 -V 6 ; L03. L05. L 1 9 -V 8 SECTION B-PAGE 32 AUTO ONLY AUTO ONLY

107 PNK/BLK PNK/BLK ORN ORN ORN ORN ORN- SPLICE BLK BLK/RED BLK/RED LT GRN LT GRN DK BLU DK BLU BLK/WHT G R A GRA BLK BRN YEL BLK BRN YEL BLK BRN ORN WHT/DBL BLK.TO ECM BLK PPL TAN- CC O O B L K PPL TAN BLK/WHT BLK/RED PPL TAN BLK/WHT BLK/WHT BLK/WHT BLK/WHT- GROMMET z cc - I m <0 -t ORN VEHICLE SPEED SENSOR BRN - A C 4S BLK/WHT B L K /W H T PNK/BLK- TO BRAKE SW TCC (AUTO) TO l/p BULKHEADS CONN SPLICE 39 TO CHECK ENGN LP (GAUGES) TO l/p CLUSTER CONN GAUGES 20 AMPS v GRA DK BLU LT GRN YEL PNK/BLK ODE CDB E E CB E B H IS E) DQ ~ S O J B B U LU E 0 H I B lai lij 12 LD B ATT kwi a c c i f f m * BLK/WHT BLK/WHT - MAN ONLY SPLICE 45 0 AUTO ONLY' TO PARK/ NEUTRAL SW BLK/WHT- A.L.D.L. LB4/L03/L05 ONLY " B A ) ORN NAT WHT/BLK- l * l [ ^ ] wwmyp w»r FUSE BLOCK PNK/BLK ORN PNK/BLK ECMI 10 AMP ORN----- ELECTRONIC CONTROL MODULE - INPUTS L B 4 -V 6 ; L03, L05, L 1 9 -V 8 SECTION B-PAGE 33

108 ELECTRONIC SPARK TIM ING E.V.R.V. SOLENOID FOR L05 W/H.D. & L19 ENGINE ONLY AIR SW ITCH SYSTEM GRD #1 SYSTEM GRD # 2 FUEL PUMP OIL PRESS SW ITCH ELECTRONIC CONTROL MODULE -OUTPUTS L B 4 -V 6 ; L03, L05, L 1 9 -V 8 SECTION B-PAGE ORN- EGR SOLENOID FOR LB4/L03/L05 W/L.D. ENGINES ONLY

109 TO KICKOOWN RELAY M4D ELECTRONIC CONTROL MODULE - OUTPUTS L B 4 -V 6 ; L03, L05, L 1 9 -V 8 SECTION B-PAGE 35

110 CIRCUIT! NO. WIRE SIZE COLOR CAVITY DESCRIPTION CIRCUIT NO. WIRE SIZE COLOR CAVITY DESCRIPTION DK GRN/WHT A1 FUEL PUMP RELAY DRIVE A2 NOT USED A3 NOT USED GRA A4 EGR SOLENOID BRN/WHT A5 SYSTEM CHECK PNK/BLK A6 12V IGNITION FUSED * TAN/BLK A7 TORQUE CONVERTER CLUTCH ORN A8 SERIAL DATA WHT/DBL BLK A9 ASS'Y LINE LINK/DIAG BRN A 10 SPEED SENSOR BLK A 1 1 5V RETURN B BLK/WHT A 12 SYSTEM RETURN ORN B1 12V BATTERY FUSED TAN/WHT B2 ELEC FUEL PUMP FUSED FEED BLK/RED B3 DISTRIBUTOR REF LOW B4 NOT USED PPL/WHT B5 DISTRIBUTOR REF HIGH B6 NOT USED BLK B7 SPARK RETARD CONTROL 59.8 DK GRN B8 AIR CONDITION B9 NOT USED * ORN/BLK B10 PARK/NEUTRAL SWITCH B11 NOT USED B12 NOT USED AUTO TRANS ONLY C1 NOT USED BRN C2 AIR SWITCH SOLENOID LT GRN/BLK C3 STEPPER COIL B LOW LT GRN/WHT C4 STEPPER COIL B HIGH LT BLU/WHT C5 STEPPER COIL A HIGH LT BLU/BLK C6 STEPPER COIL A LOW * LT BLU C7 A/C CONTROL (4TH GEAR DISCRETE) C8 NOT USED PPL/WHT C9 CRANK DISCRETE FUSED YEL C10 COOLANT TEMPERATURE LT GRN C 1 1 MANIFOLD ABSOLUTE PRESS. C12 NOT USED DK BLU C13 THROTTLE POSITION SENSOR GRA C14 5V SENSOR REFERENCE C15 NOT USED ORN C16 12V BATTERY FUSED BLK/WHT D1 SYSTEM RETURN PPL D2 5V RETURN A D3 NOT USED WHT D4 HEI SPARK TIMING TAN/BLK D5 HEI BYPASS TAN D6 OXYGEN SENSOR LOW PPL D7 OXYGEN SENSOR HIGH D8 NOT USED D9 NOT USED D10 NOT USED D 1 1 NOT USED D12 NOT USED D13 NOT USED LT GRN D14 INJECTOR B DRIVE D15 NOT USED LT BLU D16 INJECTOR A DRIVE a AUTO TRANS ONLY ELECTRONIC CONTROL MODULE LB4-V6 TBI L03, L05, L19-V8 TBI SECTION B-PAGE 36

111 ENGINE SPEED SENSOR TO ECM COOLANT TEMP SENSOR E LECTR O N IC C O N T R O L M O D U LE - IN PU TS L H 6 DIESEL SECTION B-PAGE 37

112 COLD ADVANCE GLOW PLUG INHIBIT RELAY > I I NO s m LT GRN/BLK COLD ADVANCE CONTROL I LT GRN/BLK - SPLICE BRN- FROM BATT (-1 ENGINE GRD BLK - c w _ j a z _ c c. CD h BLK- SPLICE DK GRN DK GRN BLK BLK- EGR DUMP K DK GRN PNK/BLK LT GRN/BLK STR - EGR VALVE GRA PNK/BLK GRA- EPR VALVE PNK/BLK DK GRN DK GRN - TO WATER IN FUEL SENSOR PNK/BLK- TO FUEL HEATER SPLICE 39 -TO COLD ADVANCE FAST IDLE TEMP SWITCH I ELECTRONIC CONTROL MODULE-OUTPUTS LH6 DIESEL SECTION B-PAGE 38 GLOW PLUG CONTROLLER LT GRN/BLK STR BLK PNK/BLK-

113 TO ECM 39.8 PNK/BLK ORN E LECTR O N IC C O N T R O L M O D U L E - O U T P U T S L H 6 DIESEL SECTION B-PAGE 39

114 CIRCUIT NO. WIRE SIZE COLOR CAVITY DESCRIPTION CIRCUIT NO. WIRE SIZE COLOR CAVITY DESCRIPTION LT GRN A1 MANIFOLD ABSOLUTE PRESS DK BLU A2 THROTTLE POSITION SWITCH YEL A3 COOLANT TEMP. SENSOR A4 NOT USED A5 NOT USED WHT A6 ASS Y LINE LINK/DIAG. A7 NOT USED WHT A8 ENGINE SPEED SENSOR BRN A9 VEHICLE SPEED SENSOR LT GRN A10 ASS Y LINE LINK/DIAG. A11 NOT USED GRA A 12 THROTTLE POSITION SWITCH & MANIFOLD ABSOLUTE PRESS. B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED BLK C1 SYSTEM RETURN BLK C2 SYSTEM C3 NOT USED C4 NOT USED * TAN/BLK C5 TORQUE CONVERTER CLUTCH BRN C6 COLD ADVANCE/GLOW PLUG INHIBIT RELAY C7 NOT USED C8 NOT USED C9 NOT USED GRA C IO EGR DIAGNOSTIC CONNECTOR DK GRN C11 EGR SOLENOID DK GRN C12 EGR SOLENOID C13 NOT USED PNK/PPL BLK C 14 12V IGNITION FUSED C l 5 NOT USED ORN C16 12V BATTERY FUSED D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15 D16 NOT USED NOT USED NOT USED NOT USED NOt USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED * AUTO TRANS ONLY ELECTRONIC CONTROL MODULE LH6 DIESEL SECTION B-PAGE 40

115 FROM RH HEAD(S) TO EGR SOLENOID SHEET METAL * _ j a> TO TRANS ' KICKDOWN RELAY (M40) TO AIR SW TO ALT ' SPLICE 39 TO HOT FUEL - HANDLING MODULE D C [M ] CHAMK CHORC'FUEl PUMP FRONT FUSE BLOCK '39.8 PNK/BLK AUXILIARY COOLING FAN BLK/RED * a z CL c ENGINE a e «20 I»«I»3 I I I * W UH 43# I 36 I I i * » S, 3 0 null l/p 434 ee L I (f 31 2 r * TO BRAKE SW (TCC) TO VSS PNK/BLK JUNCTION BLOCK FUSIBLE SPLICE DK GRN RUST (FUSIBLE LINK) RED AUXILIARY COOLING FAN RELAY AUXILIARY COOLING FAN TEMPERATURE SWITCH AUXILIARY COOLANT FAN (L19 & C60) SECTION B-PAGE 41

116 TO KICKDOWN SOL. (M40 ONLY) AUTOMATIC ONLY SPLICE 42 2 X TAN/BLK TAN/BLK TAN/BLK- X TAN/BLK TAN/BLK LT BLU TAN/BLK - fld Z 3 - I CO H <0 GROMMET MANUAL ONLY STOP SWITCH CM CM * CLOSES WITH INC. TEMP. v» OPENS IN 4TH GEAR N OD4O * A _ I TO ECM OPENS ON 4-3 SHIFT TRANSMISSION CONVERTER CLUTCH SOLENOID t S5, 1 r * «i * _ n (««l» 441 fttjl < 442 rn^ i 7 n > «e TO l/p CLUSTER. TO CHECK- ENGINE LP (GAUGES) I H T c CM CM I [ ENGINE I I fi 31 I ] I 3 in [ I I l/p IS 12 J (( L U 31 2 Inr L J " E I 1 1 I l «i l l l 46l K I _ l 4 16 « PPL E l 0 (T) E E E CD 0 IS (D E WDO JAUX NTH 0 AC m TO VSS- TO AUD ALARM - CENTER TO l/p, CONN. O * <D L - j i F E D C B A - J V. <0 n * if) O if) * G H J K L Mi A.L.D.L. LB4/L03/L05 ONLY CD CD 0 E E HS* ACC IPS H3 TRANSMISSION CONVERTER CLUTCH DETENT SOLENOID SECTION B-PAGE 42 FRONT FUSE BLOCK REAR

117 KICKDOWN RELAY TRANSM ISSION KICKDOW N SOLENOID TRANSMISSION KICKDOWN SOLENOID FOR LT9 ONLY LT9 ONLY O R N IN 56 LT9 ONLY AUTO TRANSMISSION KICKDOWN SOLENOID (M 40) SECTION B-PAGE 43

118 SHEET METAL BLOWER SW ITCH HI BLOWER RELAY AIR CONDITIONING (RPO C60) SECTION B-PAGE 44 A /C TEMPERATURE SW ITCH L19 ENGINE ONLY JUNCTION BLOCK

119 REAR BLOWER RESISTOR REAR BLOWER & REAR A/C SWITCH MED 1852 _ T ' J GROMMET BLU/BLK YEL/8LK ORN/BLK - RPO C60 WIRING n A/C SELECTOR CONTROL PART OF RPO C REAR AIR CONDITIONING (RPO C69) SECTION B-PAGE 45

120 HEATER BLOWER SW ITCH jc BLOWER MOTOR c? N <M r» i in RESISTOR BLOCK z e m LT BLU- D C D C C U M CMOIE'HICl I a s a y S 3 0 C 3 d ORN Y E L----- FNONT FUSE BLOCK NEAR GROMMET HEATER SECTION B-PAGE 46

121 BRN BRN FEED THRU CAPACITOR SHEET M ETAL BLK* / REAR AUXILIARY HEATER BLOWER MOTOR BRN/WHT WHT >- N REAR BLOWER & REAR A /C SWITCH LT BLU YEL LT BLU YEL N GROMMET GROMMET BUS g r u n d AUXILIARY HEATER (RPO C36) SECTION B-PAGE 47

122 l/p CLUSTER CONN. (TELLTALE) l/p CLUSTER CONN. (GAGE) 33 f 489 D l l EE ] DZlnCEl c r f a *.5 TAN/WHT- f s S a D n[i 3 EJUCZ] ngoo I ~ l ^ 1.ii 1.1. LH6/LL4 ONLY I! LB4/L03 9 L05/LI9 * ONLY 33.5 TAN/WHT TAN/WHT SPLICE 33 / 33.5 TAN/WHT I [30l kin :< BAT 3 Q J ' [IE] grd j n n l/p r K r f a l ' j I ll 14 I 29 - ' j L 3»j r I- X 3 z < IGNITION SWITCH si TAN/WHT 33.8 TAN/WHT PARK BRAKE WARNING SW ITCH BRAKE SET U - BRAKE PRESSURE WARNING -±- SW ITCH BRAKE WARNING SYSTEM SECTION B-PAGE 48

123 PNK/BLK - PARK BRAKE W ARNING SW ITCH ( Z BRAKE SET i 0 0 E B 0 0 E B WDO E 1^ JAUX MTR 0 = B TAN/WHT - TO l/p HARNESS PARKING BRAKE WIRING [M ] _ - - _ GAUGES AUXMTRAC. STOFHA2 STOP B d [M l S ] lut FRONT FUSE BLOCK C 3 D D REAR BLK/YEL BLK/YEL YEL ELECTRONIC DELAY MODULE ASSEMBLY SPLICE DIODE TO FLOW SWITCH HYDRO BOOST PRESSURE WARNING SWITCH BUZZER ASSEMBLY BRAKE WARNING SYSTEM (RPO UJ1) SECTION B-PAGE 49

124 INSTRUMENT PANEL S (TELLTALE) SECTION B-PAGE YEL

125 ILLUM ILLUM ILLUM ILLUM ILLUM YEL INSTRUMENT PANEL S (GAGE) SECTION B-PAGE 51

126 39.8 PNK/BLK TO SPLICE 39 D s G 1 M I CMMK CHOU'VUCl I r a p g m&l. FRONT FUSE BLOCK f c 3 E 3 B g a g DEAR 30.8 PNK l/p 39.8 PNK/BLK TO BRAKE SW TCC (AUTOI SPLICE 39 FUEL TANK SENDER LL4, LH6. LT9 ONLY : 3 L TO VSS TO AUDIO ALARM CENTER 31 2,, TO ALDL PNK PNK TBI ENGINES LL4, LH6, LT PNK/BLK 39.8 PNK/BLK PN K FROM EVRV L05 W/HD & L19 ONLY SYSTEM (Q # 1 SYSTEM #2 [TBI ENGINES) FROM ECM BLK/WHT BLK/WHT. FROM ESC HYBRID FUNCTION > SPLICE 450) BLK/SGL WHT STR FROM FUEL PUMP RELAY BLK/WHT SPLICE 45 0 FROM ECM FROM HOT FUEL HANDLING MODULE (L05, L19) BLK/WHT 30.8 PNK (js ) C120 Z IN S T R U M E N T PANEL G A G E S (TE LLTALE ) SECTION B-PAGE 52 (TBI ENGINES)

127 ILLUM ILLUM ILLUM ILLUM ILLUM ILLUM 39.8 PNK/BLK BLK. I 3 IH W w 181i30i l J PNK/BLK PNK BLK PNK/BLK BLK PNK ' 30 J 150 u n I * FUEL PUMP ASSEMBLY (TBI ENGINES) PNK/BLK PNK C 120 ) IN S T R U M E N T P A N E L G A G E S (TE LLTALE ) SECTION B-PAGE 53

128

129 ILLUM ILLUM ILLUM ILLUM ILLUM HEATER CONTROL AUD. ALARM CENTER BUS BAR BLK/WHT 30.8 PNK (T i ) NT BLK PNK C150 J (Ti ) 1 FUEL PUMP ASSEMBLY (TBI ENGINES) 0 ) (TBI ENGINES) ( l2 0 ) INSTRUMENT PANEL GAGES (GAGE) SECTION B-PAGE 55

130 COOLANT TEMPERATURE LB4. L03. L05. L19. LT9 COOLANT TEMPERATURE LL4. LH6 OIL PRESSURE SENDER LB4, L03. L05, L19. LH6, LL4 39 WATER IN FUEL SENSOR LL4, LH6 I \ h O ^ > _ SOLID r L i L Al EJ INDICATOR S (TELLTALE) SECTION B -PAGE56 I ORN " THERMO HW '

131 IGNITION SWITCH IN D IC A T O R L A M P S (TE LLTALE ) SECTION B-PAGE 57

132 LIGHTS ON - 8 IGNITION IGN. KEY BUZZER BATTERY FASTEN BELTS SEAT BELT SW OIL PRESSURE SW ITCH LT BRN/W HT DK BLU V 1 5. C Q 39.8 PNK/BLK r - _ GENERATOR (TBI ENGINES & LT9 ONLY) 39 WATER IN FUEL SENSOR LL4, LH i i _ SOLID 1 - L STA TEj v l I INDICATOR S (GAGE) SECTION B-PAGE DK BLU ORN ' THERMO HW

133 IGNITION SW ITCH - ± INDICATOR S (GAGE) SECTION B-PAGE 59

134 JS3T NT* E) (B OB CDQ B»,c (S OBB B E E B WOO IB IB CD m IB ID E ATT tn ACC I M MW* tmm? Chun? Ur i-t i >< RIGHT-HAND DOOR JA M B SW ITCH WHT -ESQD n B ks TERM Wciliv TWWS dluflp. FRONT FUSE BLOCK W & I k s fe] E=3 O n _ B n _ n REAR HORN RELAY CONN l/p ) 't M I g ORN WHT n : E id C * ] DOME & READING REAR RPO TVR & TR TERM V ORN- z z m * 00 I i I I I v J L437, 3 1T< r ] DOME LAM P FRONT 40.8 ORN WHT ORN- DOME REAR TERM WHT" i RED ENGINE r, HQ D L D A Q D C T ^ bt c ei i n n l/p c ADD GET 81 I Q D c l I Q E H - p n r i i i E WHT WHT- TO KEY IN WARNING BUZZER SPLICE 156 SPLICE ORN WHT ^166 [I 40 j j BUS BLK- D O M E L A M P S SECTION B-PAGE 60 HEADLAM P SW ITCH FROM AUDIO ALARM CENTER FROM HTR CONTROL SPLICE WHT WHT- FROM LOW COOLANT MODULE DIESEL FROM ONLY GLOW PLUGS WAIT _ FROM WINDSHIELD WASHER LEFT-HAND DOOR JA M B SW ITCH 156 i S s a WHT WHT TAN- r c

135 TERM RH STEPWELL LAM P RIGHT HAND SLIDING DOOR JA M B SWITCH W H T WHT WHT 1156J WHT WHT " WHT SPLICE WHT WHT ORN - cc O RIGHT HAND DOOR JA M B SW ITCH SPLICE ORN ORN ORN- -BOB) I t 4 0 ] z 5 00 X g REAR DOME LAM P WHT WHT ORN WHT ORN WHT ORN ' DOME & READING LAM P FRT TERM SPLICE ORN ORN- H 4 0 ] ORN WHT - K SPLICE WHT W HT ORN WHT FOR CONTINUATION OF WIRING. SEE DOME ENGINE l/p INTERIOR LIGHTING CONTROL SWITCH D O * f K O E ] I l c D P 0 c AD D D D H I I n r CD W HT TERM LH STEPWELL LAM P ORN WHT AUXILIARY LIGHTING (RPO TR9) STEPWELL & READING SECTION B-PAGE 61

136 RIGHT REAR SPEAKER LEFT REAR SPEAKER RADIO EQUIPMENT (RPO UM2, UM3, U58) SECTION B-PAGE 62

137 z z cc cc C3 h- X _J CO CD r> CM t TAN GRA DK GRN LT GRN 8-8 GRA GRA [ YEL Y E L - B E H 0 ifc Gj 0» t BLK - RADIO RECEIVER (B 11 B E Old gs TAK. l*s ( t3a C 0 0 (3 0 < m m a b e >CN ACC l**s * + * r x S i l 1*5 i r j i [ M ] l S [ M 3 ACC GAUGES AUK HT«A C ST OP ma? [M ] [M ] [M l TUA**IU Tmmiu MTAAC BAOlO 3 0 ~it A [M ] 5 < < cc I- 00 CO [M l [M l CHAM* CHOKE fucl * a E 3 E 3 D 3 FRONT FUSE BLOCK REAR BUS BAR r G R O U N D T m LEFT FRONT SPEAKER X " RADIO EQUIPMENT RPO U63) SECTION B-PAGE 63

138 39.5 PNK/BLK SEAT BELT BUZZER & TIMER LIGHTS ON IGNITION IGN. KEY BUZZER BATTERY FASTEN BELTS SEAT BELT SW LK BLK BLK/WHT SEAT BELT RETRACTOR SW ITCH S TO BRAKE SW \ SPLICE 39 T0 CHECK TCC (AUTO) ^ /... ENG LP (GAUGES) TO VSS ' \ t l/p \ CLUSTER TO BULKHEADS ^ CONNECTORS ' CONN FUSE BLOCK BUS BAR FROM HEAD SWITCH FROM HTR CONTROL SPLICE 150 FROM LOW COOLANT MODULE GLOW PLUGS FROM WINDSHIELD WASHER WAIT } DIESEL ONLY BLK SEAT BELT WARNING BUZZER SECTION B-PAGE 64

139 167-2.OTAN a TAN DK BLU. 1 [ c ir c u it 2 I BREAKER DK BLU/WHT PNK E H } DK BLU/WHT PNK R.H. WINDOW SWITCH BRN j r R H WINDOW MOTOR OPENING CLOSING NORMAL FUNCTION FUNCTION POSITION B O B 3 : A C 0 - E g f c - e 0 CX>-D A Cr Tj^ K - A * - a - A OPENING CLOSING NORMAL FUNCTION FUNCTION POSITION 2 < * O - A I» 3 - A ----»» -, q f - 8a»-8 c ^ - F O - F _ PNK BLK- > l , i g a G n i p h D E F l l6 6 j[7 6 7 j L.H. WINDOW SWITCH N N, CD B 0 E 0 B B S E < O B 0 B 0 K Ofc»CC i n ' SHUNT b* M t s ( S W Q spg DQg] K ] [M l c r B l ^ T a j FRONT BUS BAR FUSE BLOCK r ^ m J i CIR BRKR 30 AMP AUTO RESET X 5 3 _ j 00 * Q O * GO O <si O - A A 1 J 1 D > - I F O f t> : : OPENING CLOSING NORMAL FUNCTION FUNCTION POSITION BLK PNK DK BLU/WHT TAN. O l j ESS I [ c ir c u it *2 BREAKER L.H. WINDOW MOTOR r BRN DK BLU POWER WINDOWS (RPO A31) SECTION B-PAGE 65

140 GRA TAN CIRCUIT BRKR 3 E H GEJ i TAN j GRA 295 B D ^ TAN I [ c i r c u i t * 2 BREAKER R.H. DOOR LOCK SWITCH R.H. DOOR LOCK MOTOR TAN GRA SIDE DOOR LOCK MOTOR C - B * - C O C ^ *-1 c ^ -» q f - s r T rv ORN/BLK BLK/WHT LT BLU TAN GRA I Z I ts D TAN GRA REAR DOOR LOCK MOTOR GRA TA N E B-J GRA TAN D I5 Q S I C ORN/BLK ORN/BLK LT BLU BLK/WHT SPLICE ORN/BLK BLK/WHT FRONT FUSE BLOCK C TAN E GRA f C i Bl LT BLU LT BLU TAN GRA TAN GRA fth: DOOR LOCK SWITCH BLK/WHT ORN/BLK- DOOR LOCK RELAY ORN/BLK TAN ' GRA POWER DOOR LOCKS WITH DELAY MODULE (RPO AU3) SECTION B-PAGE R.H. DOOR LOCK MOTOR BLK/WHT BLK/WHT LT BLU LT BLU

141 ORN/BLK POWER DOOR LOCKS W ITH DELAY MODULE (RPO A U 3 ) SECTION B-PAGE 67

142 WINDSHIELD WIPER MOTOR in i is m is (5 i 0 ffl E WOO m E 31 ID is ION ACC I K M m WINDSHIELD WASHER PUMP / B a d n c g i ' _ 1 cm H M U M w»tj r n B fr n t Z p WIPER 25 AMP IM 9 WE IkS /fi i/i fes E3 ) Dd FUSE BLOCK REAR 93.8 WHT - X 5 < > WHT - WIPER WASHER. DIMMER SW. (COLUMN MOUNTED) WIPER/WASHER SECTION B-PAGE

143 WINDSHIELD WIPER MOTOR 0 SI EE@ 0 CD0 JAUK MTU (HI WINDSHIELD WASHER PUMP n 3 I 2-. h J U i _ J CO > 00 CO CO tn r - (*) O) 9 ) 0 ) I s ^ * _J I EE [ M l TAIL IPS p = n [D 0 S 0 0 WDO E E 6* ACC IPS *WA SH U N T 5A L-r 1-' WTTte' W 30 t [M i p ig e g ] GAUGES AUK NTH A c STOP HA? b ] cs [ S TUK*» «J H I* A C T U O» J - - s i g n [ M l [ M l CAANK CHOM *Utl PI FRONT FUSE BLOCK E 3 [ X I D O REAR 93-8 W HT Q Z3CH} l~93~l l~97~l WHT 5 l/p 00 eg > D. j CD < c 00 «93.8 WHT PULSE WIPER CONTROL MODULE PULSE WIPER LO BLK/LT BLU WIPER LO WIPER HI WASHER SW BRN GRA BLK PPL PNK BRN BRN BLK/LT BLU- -.8 GRA BLK PPL PNK- PULSE WIPER, W ASHER/DIMMER SW (COLUMN MOUNTED) j f~t 7 _r H P H n n -L - ' I l i i i t!u LJ l j l j n HI LO DELAY OFF MIST ^DEL I I I 12 ~ d J r 3 JL f 450 t SHEET METAL BLK WHT BLK - SPLICE 150 GAGES ONLY t INST CLUSTER CONN. LOW COOLANT WARNING MODULE GLOW PLUGS WAIT LP HTR CONTROL LP HDLP SW AUD ALARM CENTER PULSE WIPER/WASHER (RPO CD4) SECTION B-PAGE 69

144 SECTION B-PAGE 70

145 398 VENT V IV VAC V IV CRUISE SERVO LH6. LL4. LT9 (AUTO ONLY) 437 I LL4, LT9 (MAN ONLY) * LB4. L03. L05. LI9 (AUTO ONLY) CRUISE CONTROL MODULE CRUISE VENT VALVE * CRUISE CONTROL VAC / SPEED SENIOR CRUISE SERVO CRUISE SERVO EL CTR0fttC CRUISE BRAKE SW. M - - CRUISE ENGAGER SW CRUISE ENGAGER SW CRUISE CONTROL ACTIVATOR O O S/C R/A ON/OfF CONTACTS CLOSED WITH PEDAL AT REST AUTOMATIC TRANS ONLY BRAKE SW GRA GRA VEHICLE SPEED SENSOR CRUISE CONTROL (RPO K34) SECTION B-PAGE 71

146 C BLK SIDE MARKER V SPLICE 150 TAIL, STOP & DIR. *- j CO 00 R.H. BACKUP c 24.5 LT GRN Q 00 r c c I I24 2 "H I! 439 I H? I 3 ^ IfH ]340 j Z a. a JOX B CO MAN TRANS r « r I CO A HI tti f l KI :f SPLICE * B *. O) C 9> z T»Ti / LT GRN 24.5 LT GRN L.H. BACKUP BACKUP ( ) SWITCH 1 1 (M A N ONLY) REV LB4, L 0 3, L 0 5, & LH 6 ENGINES 1 NEUT/FWD BACK-UP S SECTION B-PAGE LT GRN LB4, L03, L05 ENGINES (MAN ONLY) A C D 91I..?.1H = OEP- 1fi«l- ZD d P J 'i BLK - SPLICE 150 K TAIL, STOP & DIR SIDE MARKER

147 i E IS E 0 IS H) CD0 CDB WDO B E 0 Q 0 ID 0 ATT ACC IPS n n n n p n SHUNT SHUNT SA IM] Wtli [Ml CAUOf5 AUX SNT* 3 ACSTO** [M] HA7 EM3DS MTWKc 30 A - - *WK WDO (.O i S l CHAMCHOKf *Utl I a a SPLICE TO BODY ~ \ BUILDER WIRING REAR S CUTAWAY VAN G , E32 z 0 1- J 00 CSl 24H.8 LT GRN (HW)- RIGHT HAND BACK-UP FRONT i/p r ~ I I I r '! L r ; 24.8 LT GRN b LH6 ENGINE (MAN ONLY) z c I K r MAN TRANS I (420 I llll r t f I 2 I 31 I 3 ]419 llll I h : L »1 r " ( ^ 0 ) LT GRN- LEFT HAND BACK UP ( l ) REV NEUT/FWD 24.8 LT GRN BACKUP SWITCH {MAN ONLY) LB4, L03, L05, & LH6 ENGINES LB4, L03, L05 ENGINES (MAN ONLY) BACK-UP S 2-DOOR CAB VAN G RPO E31, E34, E36, E38, & E39 SECTION B-PAGE 73

148 HEADLAM P SW ITCH m S S E B E E * ^ El dl (B E B IS E i w m O E 1 (D 0 B 0 I ATI MSN ACC IPS N W n n n /n n n r m I SHUMT SHUNT I SA R.H. TAIL, STOP. & DIRECTIONAL TAIL LPS 20 AMP rijn rj ifi r^sti [ m JT J a C T W T flo TAA IPS T s T 2 QAUOfS QAUQIS A u S V rr A C st5f h A [JaI [Ml [Ml CMANK CMOKC'FUU I FRONT FUSE BLOCK -I 5 TO FORWARD LIGHTING BRN l/p ENGINE i/ p 9.8 BRN J TT I « L ] 31 2 r : h d d m A g d d r Fm d lc El I DET i 9 i i 19 r I I U B G 1 I I 156 I f DD dp TAIL S SECTION B-PAGE 74

149 HEADLAM P SW ITCH R.H. SIDE MARKER R.H. PARK & DIRECTIONAL 9.8 BRN (3 5) E B E E E E E mm0 E E TAIL LPS 20 AMP \ wanter rg] [M [M] K l MOM Cm CAUGIS MIX MTU * C STOP MAZ tm l ts l ( ] [ ] TAA m TUWI MS HTB A C MOW ^ q g i x i i M K l K ) CRANK CMOKI»U l * [ X I [ X I i E X 1 ) [ X I 1 FRONT FUSE BLOCK REAR SPLICE TO BODY <x> < BUILDER WIRING REAR S G Z C3 u. uj L.H. PARK & DIRECTIONAL LAM P TO FORWARD LIGHTING 9.8 BRN - < a u Q MI J, T < h L m 31 2 r ENGINE HDE) r~s~ia Grn n e=ib fue2 CD m i u n l/p -9.8 BRN- d d h C=D QDG d J D s D F H *- I ) E TO CLEARANCE S L.H. SIDE MARKER TAIL S 2-DOOR CAB VAN G RPO E31, E34, E36, E38, & E39 SECTION B-PAGE 75

150 HEAD SWITCH TAIL LPS 20 AMP E f i S 0 E E B 1 B B S 0 0 WDO E E HI HI E E IB ATT IOM ACC SHUNT SHUNT! X i n n [ S I [ M l G * 3 [ M L MO** S B B t i n w w n rc ^ 0AU6CS AUX HTN A C STOP HA t u i n tu n n m ; w tw a c 3 0. A. ' W p G T u s pi R FRONT FUSE BLOCK E 3 ) C^l] REAR _ l 5 c 9> TO FORWARD LIGHTING 9.8 BRN - 00 d> L ENGINE j, I (( I \ 5 9 9,3 L D ] r ; QD IZ T fnm czr t i i u n LICENSE SECTION B-PAGE 76 \

151 R.H. SIDE MARKER HEADLAM P SW ITCH I I Q I S E E [D H 0 E E WDO E E 0 E E E E ACC PWA JAU I MTU IE AC RIGHT HAND TAIL. STOP & DIRECTIONAL TAIL LPS 20 AMP " " - G s O TM IPS l T 30 A I ACC [ M l [ M l C M q* i»0 (s a u * ht«a c s t p h a; [ f t [ M l K 3 TUMUBU MTU AC U M l i 30 [ M l [ M l PWNWOO CRAM* C HOM FullI C=3 CX 9.8 BRN.8 BLK LICENSE S FRONT FUSE BLOCK SPLICE TO BODY BUILDER WIRING REAR S G c gi BRN BLK SPLICE LEFT HAND TAIL, STOP & DIRECTIONAL -J TO FORWARD LIGHTING ENGINE f'f \\ "LzlJd A= Gu±j r T fchd c v EC=] c D D j: l/p BRNm n n nn r u n nn [= < m u Q TO 9 CLEARANCE S L.H. SIDE MARKER LICENSE S 2-DOOR CAB VAN G RPO E31, E34, E36, E38, & E39 SECTION B-PAGE 77

152 JUNCTION BLOCK 30 AMP FUSE STj2 - V ( > RED- AUX WIRE DK BLU SPLICE 9 r TO LICENSE LP I [I» I 24 I f l 9 I 24 I 13 F SPLICE 9 / K N SPLICE BRN LT GRN - 8 DK GRN- r 1 1 TT- f l - [l 9 I 24 I 19 l) TO RH TAIL, STOP, DIR SIG, MARKER & BACKUP ~ZJ LPS AUX WIRE SPLICE 9 1 r DK BLU i "1 I J [I 9 I I 19 ^ p SPLICE 9 / 9-8 BRN LT GRN DK GRN - I r ~fr -TL-fl TO RH TAIL, STOP, DIR. SIG, MARKER & BACKUP LPS Q E] WHT DK BLU DK GRN Y E L BRN <]D C D v s / YEL / SIDE MARKER STOP & DIR. LT STOP & DIR. RT _ 19 TRAILER _ AUXILIARY WIRE _ 47 SPLICE 18 cc cc I a Z * I i- CO t 00 TO LICENSE LP LT GRN DK BLU DK GRN YEL BRN W H T YEL- / LOOSE TERMINALS BATTERY - 2 SIDE MARKER " 9 STOP & DIR. LT - 18 STOP & DIR. RT - 19 TRAILER - 22 B/U LP FD 24 AUXILIARY WIRE - 47 SPLICE YEL- > FROM BULKHEAD CONN ~ TRAILER WIRING, SPLICE BRN LT GRN - - ^ Y E L SPLICE 24 SECTION B-PAGE HI O OD > ^ j t J T [ r 9 1 ** i i,8 1 I I.J I. _ J 24.8 LT GRN BRN----- Si / n.. v [i 9. i24i i i J ) 1 as > g g g g RPO U89 ' 1 L i L r : I TO LH TAIL, STOP, DIR - SIG. MARKER & BACKUP LPS SPLICE BRN LT GRN YEL SPLICE 24 H 9 I t O B > -TL-fL (E! 1 I 1 I YEL LT GRN BRN HEAVY DUTY RPO UY7 >- CO r J 3 J L [ I 9 l b 9 w > 24 U f t T I P I I I I L " ill I TO LH TAIL. STOP, DIR SIG. MARKER & BACKUP LPS

153 1988 S/T TRUCK SECTION C PAGE DESCRIPTION PAGE DESCRIPTION 2 POWER DISTRIBUTION (LL2) 51 FOUR-WHEEL DRIVE INDICATOR 3 POWER DISTRIBUTION (LN8, LB4) 52 AIR CONDITIONING (4 CYL.) 4 FUSE BLOCK DETAIL 53 AIR CONDITIONING (6 CYL.) LL2, LB4 5 HEAD S & PARKING S 54 HEATER 6 MARKER S 55 BRAKE WARNING SYSTEM 8 HAZARD S 56 INSTRUMENT PANEL S (TELLTALE VERSION) 12 DIRECTIONAL S 57 INSTRUMENT PANEL S (GAGE VERSION) 16 HORNS 58 INSTRUMENT PANEL GAGES (TELLTALE VERSION) 17 START (4 CYL.) 60 INSTRUMENT PANEL GAGES (GAGE VERSION) 18 START (6 CYL.) LL2 62 INDICATOR S (TELLTALE VERSION) 19 START (6 CYL.) LB4 64 INDICATOR S (GAGE VERSION) 20 IGNITION (4 CYL.) 66 DOME S 22 IGNITION (6 CYL.) LL2 69 INSTRUMENT PANEL COURTESY S ( MODELS) 24 IGNITION (6 CYL.) LB4 70 RADIO EQUIPMENT (STEREO) (UM2, UM3, U58) 26 THROTTLE BODY INJECTION (4 CYL.) 71 RADIO EQUIPMENT 27 THROTTLE BODY INJECTION (6 CYL.) 72 POWER WINDOWS (A31) 28 FUEL CONTROL & IDLE AIR CONTROL (4 CYL.) 73 POWER DOOR LOCKS (AU3) 29 FUEL CONTROL & IDLE AIR CONTROL (6 CYL.) LL2 74 l/p COMPARTMENT BOX (TR9) 30 FUEL CONTROL & IDLE AIR CONTROL (6 CYL.) LB4 75 SEAT BELT WARNING BUZZER 31 FUEL SENSOR 76 VANITY MIRROR (D64) 32 ELECTRONIC CONTROL MODULE (ECM)-INPUTS (4 CYL.) 77 WIPER/WASHER 34 ELECTRONIC CONTROL MODULE (ECM)-OUTPUTS (4 CYL.) 78 CRUISE CONTROL (K34) 37 ECM CHART (4 CYL.) 79 REAR DEFOGGER (C49) 38 ELECTRONIC CONTROL MODULE (ECM)-INPUTS (6 CYL.) LL2 80 LIFTGATE RELEASE (AU6) 40 ELECTRONIC CONTROL MODULE (ECM)-OUTPUTS (6 CYL.) LL2 81 CARGO (UF2) 43 ECM CHART (6 CYL.) LL2 82 BACK-UP S 44 ELECTRONIC CONTROL MODULE (ECM)-INPUTS (6 CYL.) LB4 84 TAIL S 46 ELECTRONIC CONTROL MODULE (ECM)-OUTPUTS (6 CYL.) LB4 86 LICENSE (S) 49 ECM CHART (6 CYL.) LB4 88 TRAILER WIRING 50 TRANSMISSION CONVERTER CLUTCH DETENT SOLENOID 89 HEAVY DUTY TRAILER WIRING (UY7) INDEX SECTION C-PAGE 1

154 AUTO ONLY ORN* TO CLUTCH START SWITCH MAN ONLY YEL TO TEMPERATURE OR GAUGE TO BRAKE WARNING SYSTEM l/p «12 L J ( J I. I j I s " t t COWL m a m RsTI n s fl Rsi" y ^ y y g y S" a a POWER DISTRIBUTION (LL2) SECTION C-PAGE 2 FRONT FUSE BLOCK REAR

155 ORN - TO TEMPERATURE OR GAUGE TO BRAKE WARNING SYSTEM FUSE BLOCK POWER DISTRIBU TIO N (L N 8, LB4) SECTION C-PAGE 3

156 POWER CIRCUIT AMP CIRC BREAKER IGN/ACC POWER WINDOWS - IGNITION- 3 9 /2 0 AMP AUTO TRANS CRUISE CONTROL- REAR DEFOGGER TIMER/RELAY- BATT 40/2 0 AMP -4 WHEEL DRIVE -TACH - ISRV MIRROR MAP LIGHT PNL. LPS 8/5 AMP REAR DEFOGGER ASHTRAY CLOCK DIM NOT USED 43.5 YEL-RADIO PNK PWR WINDOWS LIFT GATE RELEASE CLOCK COURTESY l/p COMP. LP DOME A HORN/D [HI T/L CTSY -i r 1 0 A :CM j [E IE IGN ACC LPS PWR I 3 0 E l I A K ] C=0 Dig m i Dig I 3. [Ml C=3 i a CRANK afus/plr POWER CIRCUIT AMP CIRC BREAKER -REAR DEFOGGER -POWER DOOR LOCKS 9.8 BRN- LT SW -TA IL S 8.5 GRA INSTR LPS 44.8 DK GRN LT SW RHEOSTAT RED PWR ACC O R N -STO P-H AZ 3.0 ORN-IGN SW BRN-IGN S W -A C C 43-5 YEL-RADIO BRN-HEATER/A/C 93.8 WHT W/S WASHER WIPER PPL DIR SIG SW PNK PWR WINDOWS 38.8 DK BLU-TURN/BU FUSE- I K I M I I h ORN/BLK-BAT-FUSED. HORN/DM T DM II H I ' PNK/BLK REAR DEFOGGER f l v PNK IGN S W -E N G -IG N ORN-LT SW -TAIL/CTSY RED-BATTERY J /Q -J ORN-ECM B 38.8 DK BLU-TURN/BU 75.8 DK BLU-TURN/BU PNK/BLK ECM I PPL/WHT CRANK PPL-IGN SW START FRONT REAR FUSE BLOCK SECTION C-PAGE 4 COLOR MALE CONN MULT CONN A NAT B BRN C BLK D GRN E RED W BLU NOT USABLE F DK GRA FUSES AMP COLOR TAN RED LT BLU YEL WHT VIOLET BROWN LT GRN

157 RIGHT HAND HEAD TO R.H. SIDE MARKER SHEET METAL ' i TO L.H. SIDE MARKER TO TAIL RR MARKER & LICENSE LPS HEADS & PARKING S SECTION C-PAGE 5

158 R.H. SIDE MARKER TO l/p COURT. S FRAME (Q R.H. SIDE MARKER C l SPLICE g K GO 2 OC CO HEAD. PANEL & DOME S SW ITCH O) -9.8 BRN A SPLICE 9 / GROM MET BLK- SPLICE TAIL STOP & DIRECTIONAL. BACKUP -9-8 BRN- R.H. PARK & DIRECTIONAL LAM P L.H. PARK & DIRECTIONAL LAM P SPLICE > - 3 CD L.H. SIDE MARKER Z CC m SPLICE BRN- TO l/p CLUSTER CONN v l/p r \ IB ABv : 12 L J, ( 31 2 Dj. r n : I91 SPLICE BRN BRN ji r V»» I J IM T lz i U l l - i (S E (B a (fi El IS S3 S 5) H ffl (B E FRONT BRN f FUSE BLOCK c d> 0) Oi + I ^ N«1«I s 1 TLA., t «s g n I 2 «2 2 i REAR FRAME I f } SPLICE 9 GROMMET TO TRAILER BLK- 9.8 BRN SPLICE SPLICE 150 7T\ TO LICENSE BACKUP TAIL STOP & DIRECTIONAL L.H. SIDE MARKER M ARKER LA M P S (UTILITY) 19 SECTION C-PAGE 6 a

159 R.H. SIDE MARKER HEAD, PANEL & DOME S SWITCH R.H. SIDE MARKER u> TO l/p CTSY S *_l CO CO S P U C E Jj5^»- TO l/p CLUSTER CONN BRN z cc <0 CO d) TAIL STOP & DIRECTIONAL : S BACKUP TO PANEL S DIMMER SPLICE,S K R.H. PARK & DIRECTIONAL SPLICE BRN- l/p SPLICE 9 [ RH LICENSE L.H. PARK & DIRECTIONAL SPLICE TO l/p CLUSTER CONN A * »9 14 n : S i s y 12 L B u D j r» : I 2B 975 I C d> z c 00 r T u SPLICE 150 : LH LICENSE BACKUP 3.J 00 H- l 10 4 FRAME c * j m -TAIL STOP & DIRECTIONAL L.H. SIDE MARKER FUSE BLOCK L.H. SIDE MARKER MARKER S {EXCEPT UTILITY) SECTION C-PAGE 7

160 R.H. HEAD CONN FRAME BLK BLK BLK. SHEET METAL (O ) DK BLU R H SIDE MARKER 3 -J CD * a SPLICE 15 Ei E IS eg B E E> E 3 13 SI 0 E H E E E < O I IS ffl B E E E ACC N M a a E l G a / BflJ&CSQfll JOA^ T.l CTSV ("ia" t SV ts K S Q S i FRONT STOP-HAZ 15 AMP FUSE BLOCK a k s b / b WE B/8 a a 0 [ X I EkS REAR CONVENIENCE CENTER SCAT BELT SW ' - 23S ISO FASTE BELTS tgnmon ION KEY SW BATTERY UG H TSO NSW - O HAZARD FLASH SO E i > ii4» r in i [ ^ ^ mmm L i S H, r a T. B 0 7 \ 0 M c O * ORN. R.H. PARK & DIRECTIONAL BLK SPLICE 151 l/p 14.5 LT BLU- L.H. PARK & DIRECTIONAL * c CO CO 3 I CO * a - J CD O y w J L L " T W ( i. r I 98 I.i DK BLU 19.8 DK GRN Y EL SHEET METAL BLK BLK - SPLICE 150 FROM W. WASHER PUMP LT BLU SPLICE LT BLU z c C9 * a c d> j. -/_> I j HAZARD S (UTILITY) SECTION C-PAGE L.H. SIDE MARKER m i6 U 18.8 YEL DK GRN

161 l/p CLUSTER CONN (TELLTALE) l/p CLUSTER CONN (GAGES) * ~ l R.H. SIDE MARKER CD 19.8 DK GRN. GRD R.H. TAIL, STOP, & DIRECTIONAL 25 39" BRN WHT , 7 j-mji t=i STOP SWITCH i 237 E 39 n n m T O P k DK BLU f " _ j CO - j CD Q O (A 10 ir> in M_~i ia5 i 11 O T P LT BLU l CD H T GROMMET DK GRN- -1 m 00 in SPLICE BLK BACKUP LT BLU DK BLU 19.8 DK GRN YEL I m * Q CM r- r- (STEERING COL SWITCHES) T " A C z CC (5 O 00 9> GROMMET \ SPLICE 150 BACKUP Y EL YEL B 1 - KEY T NORMALLY OPEN SWITCHES DIRECTIONAL SIGNAL SW I I * - j m CO L.H. SIDE MARKER 18.8 YEL BLK L.H. TAIL, STOP, & DIRECTIONAL a BLK B S Q ) GRD Y E L DK GRN HAZARD S (UTILITY) SECTION C-PAGE 9

162 R.H. SIDE MARKER LAM P CONVENIENCE CENTER R H HEADLAM P CONN BLK BLK- ( h B IS 1 1 * IE 9 B 1 HI I ^ h a 0 e ACC LP*. STOP/HAZ 15 AMP FUSE BLOCK i FRAME R.H. PARK & DIRECTIONAL SHEET METAL C =3 D 3 ) 15.8 DK BLU- SPLICE 15 FRONT ORN B K - SPLICE 151 l/p 14.5 LT BLU- L.H. PARK & DIRECTIONAL LT BLU BLK 3 _ i as * a : II : 9 1 M 12 L «-0 : (I l r : I a8 l DK BLU DK GRN *18.8 YEL L.H. HEADLAM P CONN BLK - SPLICE 150 FROM W. WASHER PUMP SHEET M ETAL BLK SPLICE 14 *14-.5 LT BLU LT BLU HAZARD S (EXCEPT UTILITY) SECTION C-PAGE 10 fljb P ) SIDE MARKER MAI LAM IP V_J YEL DK GRN

163 l/p CLUSTER CONN l/p CLUSTER CONN (GAGES) R.H. SIDE MARKER 19 8 DK GRN R.H. TAIL. STOP, & DIRECTIONAL BLK BRN WHT STOP SWITCH SPLICE 150 BACK UP 15.5 DK BLU LT BLU RH ; LICENSE 14.5 LT BLU. = ) D 15-5 DK BLU- 03 i - * z» - 5 IT) in 00 la CM i- <- I S U I H I N I. l. O l b W l f C H t S, DK GRN 18.8 YEL LH LICENSE 19 8 OK GRN YEL SPLICE 150 BACK UP J L a B N O R M A L L Y OPEN swirchfes DIRECTIONAL SIGNAL SW CC > 00 L.H. A SIDE MARKER 18.8 YEL BLK BLK L.H. TAIL, STOP, & DIRECTIONAL ~150 ^ ^ FRAME J YEL DK GRN HAZARD S (EXCEPT UTILITY) SECTION C-PAGE 11

164 R.H. HEAD CONN BLK FRAME R.H. PARK & DIRECTIONAL BLK BLK flu 1 SHEET METAL V&T JfJ R.H. SIDE MARKER - n TURN/BU 15 AMP " E) (3 a 0 0 El 0 I S B 1 (CM ACC IPS t s lik L r a D 3 C3 FRONT E E PWR E ; e X LaJ pwptacc FUSE BLOCK DIRECTIONAL FLASHER O 1 /fi [X I E 3 B ^l REAR _ 38.8 DK BLU 15.8 DK BLU- SPLICE PPL BK- SPLICE LT BLU L.H. PARK & DIRECTIONAL LT BLU 15.5 DK BLU BLK - L.H. HEAD CONN BLK - SPLICE 150 FROM W. WASHER PUMP DK GRN YEL SHEET METAL BLK SPLICE LT BLU LT BLU DIRECTIONAL S (UTILITY) SECTION C-PAGE 12 O SIDE MARKER MAI V / LAMI 18.8 YEL DK GRN

165 GRD l/p CLUSTER CONN (TELLTALE) l/p CLUSTER CONN (GAGES) R.H. SIDE MARKER 19 8 DK GRN R.H. TAIL, STOP, & DIRECTIONAL LAM P BLK GROMMET * 15 5 DK BLU PPL LT BLU I DK GRN SPLICE 150 BACKUP _j CD 0- * h- Q. O Z m in t in ( S f E tr in C i C O l S W ti C H f Si O *Q GROMMET DK GRN 18.8 YEL SPLICE 150 K BACKUP r YEL YEL * j CO L.H. TAIL, STOP, & DIRECTIONAL YEL DIRECTIONAL SIGNAL SW IUL L.H. SIDE MARKER BLK c 150 ) BLK g g ^ O ) GRD 18.8 YEL 19.8 DK GRN DIRECTIONAL S (UTILITY) SECTION C-PAGE 13

166 R.H. SIDE MARKER LAM P ATT G) (B B B Ej G E is 1 E) BE) S B OB S H C FUSE BLOCK BO IS) ES IS 8) IB IS MN ACC I M M M BLK BLK i FRAME R.H. PARK & DIRECTIONAL LAM P BLK- SHEET M ETAL * O TURN/BU 15 A M P ' I 2SA I ISA I10A 2 wprwir **«FRONT DIRECTIONAL FLASHER REA* _ 38.8 DK BLU DK BLU- SPLICE PPL B K - SPLICE 151 i/p LT BLU - L.H. PARK & DIRECTIONAL LAM P LT BLU BLK ' a O flq * IA ir> Vi I * is y 12 L j i 31 2 L r l DK BLU DK GRN YEL in BLK - SPLICE 150 FROM W. WASHER PUMP SHEET M ETAL BLK - SPLICE LT BLU LT BLU DIRECTIONAL LAM PS (EXCEPT U TILITY) SECTION C-PAGE 14 O SIDE MARKER MAI LAMIP YEL DK G R N -

167 l/p CLUSTER CONN (GAGES) R.H. SIDE MARKER 19 8 DK GRN R.H. TAIL, STOP, & DIRECTIONAL LAM P BLK SPLICE y 150 BACK UP RH ; LICENSE c 19.8 DK GRN 18.8 YEL L.H. TAIL, STOP, & DIRECTIONAL LAM P L.H. SIDE MARKER YEL DK GRN - DIRECTIONAL S (EXCEPT UTILITY) SECTION C-PAGE 15

168 CONVENIENCE CENTER HORN ^ SCATKIT SW R0UN0 150 FASTE 6EITS 237 IGNITION IONKEYSW ATTERY LIGHTSONSW,.8 -O- HAZARDFLASH T O C IG A R E T T E, LIGHTER OC * a 8UZZER c n r ^ i r ^ i i g HOMU -I 29 f z j * _l CO O 00 T O l/p C O M P. B O X LP 7 *.j a SPLICE 240 i m r R l 0 s * z s * Q O DD; IB SI IB B (B E) E IB (33 (S B (B IB E IB (0 2J (B 00 IB E C=D DX3 ACC i K M M B 1 S ET «l r EPSWWB6 D C 3 K ) FRONT 0 FUSE BLOCK NEAR H 12 j (< f l H I V HORN SECTION C-PAGE 16

169

170 { n m O H O D > m _ * 00 (ft H > 3) O) O < NJ CO > H H m 30 < + ip 0D r * RED sm O FUSIBLE LINK v r- 35 m O N) CJ OP P K <D 09 n * & * & U (A CO *0 s*-i m s > r m w Z. O < t F w u <0 t - W L O' K) <0 (A <0 L O _ (0 <P U> M D, a a r p i a 0 3 H a i 8 X SH s a 5 S m a i s S s a ej *0 2 * 00 n * Ol t 01 W <0 IP M * 5 <t u j» * OD > tfl O <0 ** «c W *»! / J { c ( RED PPL - * RED- C ^ is's \ j s a 39.8 PNK/BLK PPL/WHT- H C/5 m r > i - S ^ c H H CO O s 1 O z H z (/) RED- H O X * RED 39.8 PNK/BLK > c O 30 W OOlCH O O " 2 > DK GRN TAN/WHT- I

171 _n n_ + - BATTERY FRONT FUSE BLOCK REAR START (6 CYL.) LL2 SECTION C-PAGE 19

172

173 CONVENIENCE CENTER FRONT FUSE BLOCK REAR IGNITION (4 CYL.) SECTION C-PAGE 21

174 GROMMET X * E8T WIT REF -Q 430 BYPASS CH8TREFLO - 4S PNK/BLK HED/BLK PPL/WHT NAT/WHT TAN/BLK M PNK/BLK RED/BLK PPL/WHT NAT/WHT TAN/BLK O I, C H f l J Dt *. J CO * 0> CO * S> DISTRIBUTOR TO HALF FUNCTION ESS CO m z 5 00 TACHOMETER HH f [ED CZ ELECTRONIC CONTROL MODULE CONNECTORS TO EVRV SOLENOID TO AIR CONTROL TO INJECTORS ENGINE l/p I J j E H in i* JQl PNK/BLK - GENERATOR I r - w N m SPLICE PNK/BLK J 12 J H9 B PNK/BLK PNK PNK- \ / r - "» i r i 28 1J 3» BRN PNK/BLK TO A/C RELAY BRN- IGNITION (6 CYL.) LL2 * SECTION C-PAGE 22 I TO BATTERY TO ' SPLICE 2 TO OIL PRESS. RELAY PNK/BLK-

175 l/p CLUSTER CONN (GAGES) CONVENIENCE CENTER X 5 z< HOJlN fe la Y TO TCC BRK SW (AUTO ONLY) BUZZER )E *3 D L i n PNK/BLK BELTS IGNITION ION KEY SW X. 80 BATTERY LIGHTS ON SW.. b ORN BRN- -O HAZARD FLASH PNK I3 3 _J CO PNK/BLK PNK PNK - 5 IS B IB ID s 0, 19 B IB I HI 4. H (3 S ED E ^ * - i GO * 2 a. z Q. 00 0> c CO CO c 4 START RUN OFF LOCK ACC BRN PNK/BLK- C=3 E^G q r a u j ) i g _ Q e g f r s r FRONT REAR FUSE BLOCK IGNITION (6 CYL.) LL2 SECTION C-PAGE 23

176 GROMMET <*44040 Q PNK/BLK BLK/RED PPL/WHT WHT TAN/BLK PNK/BLK BLK/RED < PPL/WHT WHT TAN/BLK O t > - f l D t S> DISTRIBUTOR L-C l2 C 3 i D / ^ V TO HALF FUNCTION ESC TO EVRV SOLENOID COIL _ r V * 121 r i c j CO Z 5 00 TACHOMETER BH f = r l«l 1»8S Cl2] 2 E 3 O i E j g E E ] 1 *3 1 5 l«l» l 6 eh) * Em s «3 L?»: t 2 r 3 ~444 - ^ l j j I412 n i ' 5 ' <» 806.S I r I } ' ELECTRONIC CONTROL MODULE CONNECTORS TO INJECTORS ENGINE i/p [ PNK/BLK GENERATOR SPLICE PNK/BLK - i J, T < V H I * - * r PNK/BLK PNK PNK BRN PNK/BLK y'"rvr >»_ TO A/C RELAY BRN PNK/BLK- IGNITION (6 CYL.) LB4 SECTION C-PAGE 24 TO BATTERY TO JUNCTION BLOCK - TO ENGINE CONN.

177 FRONT FUSE BLOCK REAR IGNITION (6 CYL.) LB4 SECTION C-PAGE 25

178 GROMMET PPL THROTTLE POSITION SENSOR SPLICE DK BLU BLK GRA LT BLU DK BLU BLK' GRA LT BLU ELECTRONIC CONTROL MODULE CONNECTORS 452 TO COOLANT TEMP. SENSOR PNK/BLK PNK/BLK TO EGR SOLENOID INJECTOR 1 I AOOI\ PNK/BLK LT BLU SPLICE ENGINE i is is a si e i S 0 a a ffi E E El E 0 IS S) IS E n a c c i t * r w «D 3 C 3 I X B 1 t L r» PWR ACC B a PNK/BLK- c I P I V m l * * L J, I ( S 3 f l 9 1 * B r a n i s E J FRONT PNK/BLK TO VSS L V THROTTLE BODY INJECTION (4 CYL.) SECTION C-PAGE

179 OXYGEN SENSOR PNK/BLK GROMMET PPL PPL DK BLU DK BLU THROTTLE POSITION SENSOR SPLICE 416 v BLK GRA LT BLU BLK GRA LT BLU ELECTRONIC CONTROL MODULE CONNECTORS LT GRN LT GRN TO COOLANT TEMP. SENSOR TO MAP SENSOR PNK/BLK PNK/BLK INJECTOR RED----- LL2 ONLY DK BLU- INJECTOR LT BLU W H T LT GRN - f SPLICE ) n I 7 _ Ire «8061»T It tfi 1 * «39 in TO AIR CONTROL TO EVRV SOL. TO HALF FUNCTION ESC ENGINE a ; l/p I! 9«i (1 6fi J L r (( Dj , r 439 s Is" CC GO E (3 0 0 S3 HI E ; 0 E 0 (S IS) B ' B 0 i E 0 E n ac c i n C js * ] R a h rsstl f i s * ] & 1 w n v t PNK/BLK - FRONT FUSE BLOCK P E 1 / 0 C =3 C=GC=3 a b ^ b REAR TO VSS THROTTLE BODY INJECTION (6 CYL.) SECTION C-PAGE 27

180 IDLE AIR i CONTROL! TO ECM OXYGEN SENSOR FUEL PUMP RELAY OIL PRESSURE SW ITCH FUEL PUMP PRIME FUEL C O N TR O L & IDLE A IR C O N T R O L (L N 8-4 C Y L.) SECTION C-PAGE 28 l/p CLUSTER CONN (TELLTALE) l/p CLUSTER CONN (GAGES)

181

182 IDLE AIR C O N T R O L- INJ. ACTUATOR TO ECM OXYGEN SENSOR FUEL PUMP RELAY OIL PRESSURE SW ITCH FUEL PUMP PRIME FUEL CONTROL & IDLE AIR CONTROL ( L B 4-6 CYL.) SECTION C-PAGE l/p CLUSTER CONN (TELLTALE) l/p CLUSTER CONN (GAGES) 30.8 PNK-

183 TANl/P CLUSTER CONN (TELLTALE) l/p CLUSTER CONN (GAGES) ENGINE ~i FUEL PUMP & SENSOR y t r, 4 I J I» L D] I. r I 1". i n CM >4.J FRAME (Q! (ALL MODELS EXCEPT UTILITY) PNK TA N TAN - I UTILITY ONLY UTILITY ONLY z < tm * 1?4 L _ PNK TAN _ l I,_J FUEL SENSOR SECTION C-PAGE 31

184 THROTTLE POSITION SENSOR BLK COOLANT TEMP SENSOR M ANIFOLD ABSOLUTE TEMPERATURE OXYGEN SENSOR POWER STEERING ANTICIPATE SW ITCH TO SPLICE (LN8-4 CYL.) ELECTRONIC CONTROL M O DULE-INPUTS SECTION C-PAGE 32

185 452-8 BLK BLK TO ECM (LN8-4 CYL.) ELECTRONIC CONTROL MODULE INPUTS SECTION C-PAGE 33

186 ELECTRONIC SPARK TIMING IDLE AIR CONTROL TRANSMISSION CONVERTER CLUTCH SOLENOID I.S.T. MONAL E.S.T. IV P A M I.t.T. DCF. P U L M HI E.C.T. REF. PU LW ' S TAN/WHT PPL TAN/BLK LT GRN/BLK - «^ «^» T«443.8 LT GRN/WHT LT BLU/BLK LT BLU/WHT NAT/WHT EGR SOLENOID PPL/WHT TAN/BLK BLK/RED GRA GRA PNK/BLK INJECTOR PNK/BLK LT BLU OIL PRESSURE SWITCH LT BLU ' PNK BLK ORN ' PNK/BLK ORN TAN T A N PNK/BLK DK GRN TO A/C COMPRESSOR ' CLUTCH 39.8 PNK/BLK BRN ' BRN TO SELECTOR SW TAN/BLK DK GRN/WHT A/C COMPRESSOR CONTROL RELAY PNK/BLK DK GRN DK GRN/WHT DK GRN BRN LT GRN DK GRN/WHT DK GRN FUEL PUMP PRIME TAN/W HT- X 5 z < t- z z < I ō 120IFT20H TAN/WHT SPLICE 120 N DK GRN ORN BLK/WHT TAN/WHT LOW PRESSURE SW (PART OF COMPRESSOR ASM) (LN8-4 CYL.) ELECTRONIC CONTROL MODULE-OUTPUTS SECTION C-PAGE 34

187 TO ECM TAN/WHT PNK- (LN8-4 CYL.) ELECTRONIC CONTROL M O DULE- OUTPUTS SECTION C-PAGE 35

188 SECTION C-PAGE 36

189 CIRCUIT NO. WIRE SIZE COLOR CAVITY DESCRIPTION CIRCUIT NO. WIRE SIZE COLOR CAVITY DESCRIPTION DK GRN/WHT A1 FUEL PUMP RELAY DRIVE # TAN/BLK A2 TORQUE CONVERTER CLUTCH # TAN/BLK A2 UPSHIFT M A N -O N LY GRA A3 EGR SOLENOID BRN A4 A/C RELAY BRN/WHT A5 SYSTEM CHECK PNK/BLK A6 12V IGNITION FUSED A7 NOT USED ORN A8 SERIAL DATA NAT/WHT A9 ASSY LINE LINK/DIAG BRN A10 SPEED SENSOR BLK A11 5V RETURN B BLK/WHT A 12 SYSTEM RETURN ORN B1 1 2 V BATTERY FUSED TAN/W HT B2 ELEC FUEL PUMP FUSED FEED BLK/RED B3 DISTRIBUTOR REF LOW B4 NOT USED PPL/WHT B5 DISTRIBUTOR REF HIGH B6 NOT USED B7 NOT USED DK GRN B8 AIR CONDITION B9 NOT USED A ORN/BLK B10 PARK/NEUTRAL SWITCH B11 NOT USED B12 NOT USED * A U T O TRANS ONLY * M A N TRANS ONLY A AUTO TRANS ONLY C1 NOT USED C2 NOT USED LT GRN/BLK C3 STEPPER COIL B LOW LT GRN/WHT C4 STEPPER COIL B HIGH LT BLU/WHT C5 STEPPER COIL A HIGH LT BLU/BLK C6 STEPPER COIL A LOW C7 NOT USED LT BLU/ORN C8 PWR STRG CUTOUT SW PPL C9 CRANK DISCRETE FUSED YEL C 10 COOLANT TEMPERATURE LT GRN C11 MANIFOLD ABSOLUTE PRESS TAN C12 MANIFOLD AIR TEMP SIGNAL DK BLU C13 THROTTLE POSITION SENSOR GRA C 14 5V SENSOR REFERENCE C15 NOT USED ORN C 16 12V BATTERY FUSED TAN/WHT D1 SYSTEM BLK/RED D2 5V SYSTEM RETURN A D3 NOT USED NAT/WHT D4 HEI SPARK TIMING TAN/BLK D5 HEI BYPASS TAN D6 OXYGEN SENSOR LOW PPL D7 OXYGEN SENSOR HIGH D8 NOT USED BLK D BLK D10 D11 NOT USED D12 NOT USED D13 NOT USED D14 NOT USED D15 NOT USED LT BLU D16 INJECTOR A DRIVE ELECTRONIC CONTROL MODULE (L N 8-4 CYL.) SECTION C-PAGE 37

190 THROTTLE POSITION SENSOR - 4 bi BLK DK BLU GRA MANIFOLD ABSOLUTE PRESSURE SENSOR ORN PNK/BLK BLK/WHT BLK PPL PPL LT GRN LT GRN DK BLU DK BLU GRA GRA COOLANT TEMP SENSOR YEL BLK SPLICE PNK/BLK Y E L PNK/BLK BLK BLK SENSOR DK BLU REDUNDANT OXYGEN SENSOR 'I 'l l - g S s C BLK TAN/W HT T A N BLK/WHT- FROM OIL [ PRESS RELAY..SPLICE PPL TAN/W HT T A N BLK/WHT PPL FROM FUEL PUMP RELAY! E.S.C. HYBRID FUNCTION 12V ION FUSED - SPARK RETARD E S C - E S C SEN INPUT G B IB PNK/BLK BLK BRN----- FROM EVRV SOL PNK/BLK BRN DK BLU ORN i/ p OXYGEN SENSOR PPL PNK/BLK w 14 9J H! 12 J r t I Ḍ r (LL2-6 CYL.) ELECTRONIC CONTROL M O D ULE-INPUTS SECTION C-PAGE

191 TO ECM PNK/BLK PNK/BLK- (LL2-6 CYL.) ELECTRONIC CONTROL MODULE (ECM)-INPUTS SECTION C-PAGE 39

192 E.V.R.V. SOLENOID TRANSMISSION CONVERTER CLUTCH SOLENOID OXYGEN SENSOR OIL PRESSURE SWITCH OIL PRESSURE SWITCH (AUTO TRANS. & KC4) OIL PRESSURE RELAY (AUTO TRANS. & K C 4) A/C COMPRESSOR CONTROL RELAY ( L L 2-6 CYL.) ELECTRONIC CONTROL MODULE-OUTPUTS) SECTION C-PAGE PNK/BLK-

193 465-8 DK GRN/WHT TO ECM PNK/BLK 30.8 PNK- (LL2-6 CYL.) ELECTRONIC CONTROL MODULE-OUTPUTS SECTION C-PAGE 41

194 SECTION C-PAGE 42

195 CIRCUIT NO. WIRE SIZE COLOR CAVITY DESCRIPTION CIRCUIT NO. WIRE SIZE COLOR CAVITY DESCRIPTION DK GRN/WHT A1 FUEL PUMP RELAY DRIVE DK GRN/WHT A2 A/C RELAY A3 NOT USED GRA A4 EVRV SOLENOID BRN/WHT A5 SYSTEM CHECK PNK/BLK A6 12V IGNITION FUSED * TAN/BLK A7 TORQUE CONVERTER CLUTCH * TAN/BLK A7 UPSHIFT M A N -O N LY ORN A8 SERIAL DATA NAT/WHT A9 ASS Y LINE LINK/DIAG BRN A 10 SPEED SENSOR PPL A 1 1 5V SYSTEM RETURN A BLK/WHT A 12 SYSTEM RETURN ORN B1 12V BATTERY FUSED TAN/WHT B2 ELEC FUEL PUMP FUSED FEED RED/BLK B3 DISTRIBUTOR REF LOW B4 NOT USED PPL/WHT B5 DISTRIBUTOR REF HIGH B6 NOT USED BLK B7 SPARK RETARD CONTROL DK BRN B8 AIR CONDITION B9 NOT USED A ORN/BLK B10 PARK/NEUTRAL SWITCH B11 NOT USED B12 NOT USED A U T O TRANS ONLY 456-MAN TRANS ONLY A AUTO TRANS ONLY C1 NOT USED PNK/BLK C2 AIR SW SOLENOID LT GRN/BLK C3 STEPPER COIL B LOW LT GRN/WHT C4 STEPPER COIL B HIGH LT BLU/WHT C5 STEPPER COIL A HIGH LT BLU/BLK C6 STEPPER COIL A LOW C7 NOT USED C8 NOT USED PPL/WHT C9 CRANK DISCRETE FUSED YEL C 10 COOLANT TEMPERATURE LT GRN C11 MANIFOLD ABSOLUTE PRESS C12 NOT USED DK BLU C13 THROTTLE POSITION SENSOR GRA C l 4 5V SENSOR REFERENCE C15 NOT USED ORN C16 12V BATTERY FUSED TAN/WHT D1 SYSTEM RETURN BLK D2 5V SYSTEM RETURN B D3 NOT USED NAT/WHT D4 HEI SPARK TIMING TAN/BLK D5 HEI BYPASS TAN D6 OXYGEN SENSOR LOW PPL D7 OXYGEN SENSOR HIGH D8 NOT USED D9 NOT USED D10 NOT USED D1 1 NOT USED D12 NOT USED D13 NOT USED LT GRN D14 INJECTOR B DRIVE D15 NOT USED LT BLU D16 INJECTOR A DRIVE ELECTRONIC CONTROL MODULE (LL2-6 CYL.) SECTION C-PAGE 43

196 THROTTLE POSITION SENSOR BLK DK BLU M ANIFOLD ABSOLUTE PRESSURE SENSOR ORN PNK/BLK GRA BLK/WHT BLK BLK/RED BLK/RED LT GRN/BLK LT GRN/BLK DK BLU DK BLU GRA GRA COOLANT TEMP SENSOR D YEL BLK PNK/BLK BLK - v w y SPLICE YEL PNK/BLK BLK E.S.C. SENSOR DK BLU SYSTEM OXYGEN SENSOR i h g s a TAN/W HT T A N BLK/WHT- vsplice PPL TAN/WHT T A N BLK/WHT PPL - FROM FUEL PUMP RELAY * - E.S.C. HYBRID FUNCTION 12V IGN. FUSED a 439 SPARK RETARD E.S.C E.S.C. SEN. INPUT PNK/BLK BLK BRN----- FROM EVRV SOL PNK/BLK BRN DK BLU ORN i/p OXYGEN SENSOR PPL PNK/BLK « II ! L ((, D] r » : z cc O (LB4-6 CYL.) ELECTRONIC CONTROL M ODULE-INPUTS SECTION C-PAGE

197 GROMMET PE947G PNK/BLK - TO ECM PNK/BLK PNK/BLK - (LB4-6 CYL.) ELECTRONIC CONTROL MODULE INPUTS SECTION C-PAGE 45

198 ELECTRONIC SPARK TIMING B O 446 <-» OPENS IN CLOSES WITH % 4TH GEAR INC. TEMP. v \ - 5 ^ n ' -----OPENS ON 4-3 SHIFT TRANSMISSION CONVERTER CLUTCH SOLENOIO E.V.R.V. SOLENOID LT BLU LT GRN/BLK LT GRN/WHT LT BLU/BLK L T BLU/WHT W HT PPL/WHT TAN/BLK BLK/RED T A N BLK/WHT BLK/WHT GRA PNK/BLK DK GRN DK GRN/WHT DK BLU TAN DK GRN TAN/WHT ORN DK GRN/WHT- OIL PRESSURE SWITCH ORN PNK/BLK TAN/BLK PPL TAN/WHT TAN/WHT - A/C COMPRESSOR CONTROL RELAY (LB4-6 CYL.) ELECTRONIC CONTROL MODULE-OUTPUTS SECTION C-PAGE PNK/BLK -

199 TAN/BLK G R A DK GRN/WHT OK GRN/WHT. GROMMET PE TAN/BLK GRA 59.5 OK GRN DK GRN TAN/WHT TAN/WHT PNK/BLK PNK/BLK OK G RN DK B LU BLK/W HT DK BLU LT GRN/BLK LT GRN/WHT LT BLU/BLK LT BLU/WHT WHT PPL/WHT TAN/BLK BLK/RED TAN ORN ORN ORN LK/WHT DK GRN DK BLU BLK/WHT DK BLU LT GRN/BLK LT GRN/WHT LT BLU/BLK LT BLU/WHT WHT PPL/WHT TAN/BLK BLK/RED TAN ORN ORN ORN -TO ECM BLK/WHT F 6 0 C B H n in * J) H X s <6 «T z T ' < BLK/WHT ENGINE r. c D l/p H G 451 4!, 0 - f E J FUEL PUMP & SENSOR (EXC. UTILITY) FOR UTILITY WIRE ROUTING FRAME TAN PNK 39-8 PNK/BLK (L B 4-6 C Y L.) ELE C TR O N IC C O N T R O L M O D U L E - O U T P U T S SECTION C-PAGE 47

200 SECTION C-PAGE 48

201 CIRCUIT NO. WIRE SIZE COLOR CAVITY DESCRIPTION CIRCUIT NO. WIRE SIZE COLOR CAVITY DESCRIPTION DK GRN/WHT A1 FUEL PUMP RELAY DRIVE DK GRN/WHT A2 A/C RELAY A3 NOT USED GRA A4 EVRV SOLENOID BRN/WHT A5 SYSTEM CHECK PNK/BLK A6 12V IGNITION FUSED TAN/BLK A7 TORQUE CONVERTER CLUTCH TAN/BLK A7 UPSHIFT M A N -O N LY ORN A8 SERIAL DATA NAT/WHT A9 ASS Y LINE LINK/DIAG BRN A 10 SPEED SENSOR PPL A 1 1 5V SYSTEM RETURN A BLK/WHT A 12 SYSTEM RETURN ORN B1 12V BATTERY FUSED TAN/WHT B2 ELEC.FUEL PUMP FUSED FEED RED/BLK B3 DISTRIBUTOR REF LOW B4 NOT USED PPL/WHT B5 DISTRIBUTOR REF HIGH B6 NOT USED BLK B7 SPARK RETARD CONTROL 59.5 DK BRN B8 AIR CONDITION B9 NOT USED ORN/BLK B10 PARK/NEUTRAL SWITCH B11 NOT USED B12 NOT USED C1 NOT USED C2 NOT USED LT GRN/BLK C3 STEPPER COIL B LOW LT GRN/WHT C4 STEPPER COIL B HIGH LT BLU/WHT C5 STEPPER COIL A HIGH LT BLU/BLK C6 STEPPER COIL A LOW LT BLU C7 TCC SOLENOID C8 NOT USED PPL/WHT C9 CRANK DISCRETE FUSED YEL C10 COOLANT TEMPERATURE LT GRN C 11 MANIFOLD ABSOLUTE PRESS. C12 NOT USED DK BLU C13 THROTTLE POSITION SENSOR GRA C14 5V SENSOR REFERENCE C15 NOT USED ORN C16 12 V BATTERY FUSED TAN/WHT D1 SYSTEM RETURN PPL D2 5V SYSTEM RETURN B D3 NOT USED NAT/WHT D4 HEI SPARK TIMING TAN/BLK D5 HEI BYPASS TAN D6 OXYGEN SENSOR LOW PPL D7 OXYGEN SENSOR HIGH D8 NOT USED D9 NOT USED DIO NOT USED D 1 1 NOT USED D12 NOT USED D13 NOT USED LT GRN D14 INJECTOR B DRIVE D15 NOT USED LT BLU D16 INJECTOR A DRIVE ELECTRONIC CONTROL MODULE (LB4-6 CYL.) SECTION C-PAGE 49

202 GROMMET TAN/WHT LT BLU - " 1 I I STOP SWITCH I LT B LU ELECTRONIC CONTROL MODULE CONNECTORS n r - r j 5S t 469 L * L _ >1 3 l* «* - E l. h ll li L w 7 l * «' i t '.: 9 l» «i... 4 e6 i, 101*10 i 1 1 (*3 2 7 i l? l*> 2 i 13I * 14 *1 6 i.. i... 1,1 *67 1 «( «0 L _ J TO INST. CLUSTER (GAGES ONLY) TO CONV. CTR. TO l/p CONN. f E O C _ n _ A 1461 O H J H IM A.L.D.L. 461I4S I J TAN/BLK PPL TRANSMISSION CONVERTER CLUTCH DETENT SOLENOID (AUTO. ONLY) FRONT FUSE BLOCK REAR SECTION C-PAGE 50

203 SELECTOR QUADRANT SWITCH WHT BLK GROMMET FOUR WHEEL DRIVE INDICATOR 2 WHL 4 HIGH (St; & 4 LOW & 156 = 5= FRT & RR AXLE DISP WHT BRN/WHT BLK x md BUS C 3 S B A R FRONT AXLE SWITCH FUSE BLOCK [ X I [ X ] > [ X I i* k s j FOUR W HEEL DRIVE INDICATOR SECTION C-PAGE 51

204 JUNCTION BLOCK TO ECM BRN (LN8-4 CYL.) AIR CONDITIONING (RPO C60) SECTION C-PAGE 52 SPLICE 39 -TO ALTERNATOR FUSE BLOCK

205 JUNCTION BLOCK BRN BRN FUSE BLOCK - TO OIL PRESS SENDING LB4-V6 LL2-V6 AIR CONDITIONING RPO C 60 SECTION C-PAGE 53

206 m rn 2 5 H m 3 z 0 1 " 0 > a m i * r O 30 2 O O a z ORN- CD 30 O S s m O N> O K) O LT BLU ORN YEL { I D => ig B LT BLU ORN YEL BRIMm a N) BRNa r n. x

207 c s i E 3 39 VI m ISO ID l/p CLUSTER CONN (TELLTALE) TAN/W HT TAN/W HT I I I l/p CLUSTER CONN (GAGES) < H TAN/W HTz <t- i3iigw 3 BAT 3 m grd 1 n n l/p L i t 31 2 Dj. r I» I 24 18, IGNITION SW ITCH TAN/WHT - 33 ) TAN/WHT- A R :L SE :t * 4 PARKING BRAKE W ARNING SW ITCH BRAKE PRESSURE WARNING SWITCH BRAKE WARNING SYSTEM SECTION C-PAGE 55

208 ILLUM ILLUM ILLUM ILLUM CIGARETTE LIGHTER INSTRUMENT PANEL S (TELLTALE) SECTION C-PAGE

209 ILLUM ILLUM ILLUM ILLUM ILLUM ILLUM CIGARETTE LIGHTER K U S L W C M < [ ] C 3 C 3 FRONT FUSE BLOCK RADIO POWER INSTRUMENT PANEL S (GAGE) SECTION C-PAGE 57

210 IGN/GAUGES 20 AMP (E3j 12 BDS) B BD10 B IS 0 G) IS H ffl (0 (E < O EJ E) El IS CB BB (E ION ACC IP * r w «C 3 W E / S I IP'S B ^ l FRONT FUSE BLOCK t t t t ) [X 3 Ekfi [ REAR 3 00 * z a. RADIO - HEATER LP - l/p CONV. CENTER1 l/p COMP BOX LP * (UTILITY ONLY) BLK SPLICE J II?2 L J r (< H i r i I TO CONN. CENTER TO TCC BRAKE SW SPLICE 39 ST BLT PNK/BLK B LK PNK/BLK PNK PNK * PNK P N K L «l e r 240 I 196 I BiJP- 19 D PNK PNK I a. a> n I UTILITY ONLY INSTRUMENT PANEL GAGES (TELLTALE) SECTION C-PAGE 58 I

211 ILLUM ILLUM ILLUM ILLUM RIGHT TURN LEFT TURN SERVICE ENGINE SOON 0 r HIGH BEAM BRAKE SEAT BELT 237 r n O n 1 9 L_ 10 8* 3 0 j m I " * * 16 0 Q GEN 0 TEMP 0 OIL L L - O - J r UP SHIFT BLK PNK/BLK MANUAL TRANS ONLY j PNK FUEL PUMP & SENSOR 39.8 PNK/BLK 1 I I ll33l 18 2 I 31 I f D JE? r * n M 15 c I 2! JLl J 14 6 D ]QD 13-7 GD in * > BLK- IttC. UTILITY) FOR UTILITY f w ire r u t in g ' SEE PAGE PNK H i Jczi 11 9 n l/p CLUSTER CONN (TELLTALE) FRAME PNK 30.8 PNK INSTRUMENT PANEL GAGES (TELLTALE) SECTION C-PAGE 59

212 OIL PRESSURE SW ITCH LN WHT ] GROMMET WHT - {jttttifra BLK BRN/WHT - OIL PRESSURE SW ITCH LB ID fs ffl & ffil B O 0 0 ffl B nr* ) CD EJ 0 0 ffl IB (B B xa» ( i i h; nw OIL PRESSURE SENDER 3 IM 3,^ OS LL2 OIL PRESSURE SENDER ALL LL2 EXC KC-4 AUTO WATER TEMPERATURE TRANSDUCER TAN (LN8, LB4) FORWARD LAM P IS 12 J «C 3 c r caa a FRONT ' ^ FUSE BLOCK 39.8 PNK/BLK BLK/LT GRN DK GRN GENERATOR.- V * n r r r v * 1» PNK/BLK 30.8 PNK I PNK INSTRUMENT PANEL GAGES (GAGE) SECTION C-PAGE 60

213 0 0 ILLUM ILLUM ILLUM ILLUM ILLUM W HT BLK BRN/WHT- RPO U16 z '(W ITH TACHI - ( c E \ ( $ ) ( S \ 150 \J \ 150 / \ 150 / RIGHT TURN HIGH BEAM fltfr SEAT BELT LEFT TURN O GEN BRAKE : RADIO HEATER LP» - CONV. CENTER I l/p COMP BOX LP» (UTILITY ONLY) BLK ASH TRAY LP SPLICE 160 X < m i s J t s -CEjfl - a l [ 3 9 E D IL s R n in iz 4 - [ 3 5 ] L I MANUAL TRANS ONLY INST PNLLPS 3 J 1 T ~ t - O D ^ 39 f l STBLT JUMPER FUEL PUMP & SENSOR TO CONN. CENTER TO TCC BRAKE SW r (WITH TACHI - -(W/OUT TACH)- SPLICE PNK/BLK PNK/BLK PNK/BLK PNK TAN- l/p CLUSTER I CONN (GAGES) (EXC. UTILITY! FOR UTILITY [ WIRE ROUTING SEE PAGE PNK/BLK DK GRN- ' PNK/BLK TAN - ' DK GRN H FRAME, PNK t PNK PNK i 18 UTILITY ONLY 19 * PNK INSTRUMENT PANEL GAGES (GAGE) SECTION C-PAGE 61

214 OIL PRESSURE SW ITCH LN8 OIL PRESSURE SW ITCH LB4 OIL PRESSURE SENDER LL2 OIL PRESSURE SENDER ALL LL2 EXC KC 4 AUTO GENERATOR INDICATOR SECTION S (TELLTALE) C PAGE CGH3 GET Dl I I l E

215 ILLUM ILLUM ILLUM ILLUM < II RADIO 1 HEATER LP I RIGHT TURN 0 ( 0 ) (d b ) ( ) V 1 s / y 150 / y 150 / y 150 / LEFT TURN SERVICE ENGINE SOON 0 n l/p COMP BOX LP (UTILITY ONLY! BLK- HIGH BEAM SEAT BELT I ] f f T i l.12 n ± } 13 - t u n EH}- 4--QDUDE]- 3. -i 35 in i^tsv } } GEN 0 TEMP OIL [ l [ n i l r m UPSHIFT PNK/BLK PNK/BLK PNK/BLK BLK TAN BRN YEL DK BLU DK GRN- SPLICE 3 9 TO TCC SOLENOID (IS }) 35.5 DK GRN T A N B R N YEL DK BLU PNK/BLK - TO RH TURN l/p CLUSTER CONN (TELLTALE) c O O n fa U c ia ' GD 3 35] GD { 237J e i n r 714 I } f Q T }. 1«- D I> 1 S 0 4 l 2 E 3 a TO LH TURN m MANUAL TRANS L 0NLY I DK GRN TAN/W HT- l300llgn 3 BAT 3 m GRD 1 l~35l GRD 2 *3 3T ' BLK LT BLU LT BLU TAN/BLK BRN/WHT BRN/WHT - < * " TAN/BLK TAN/BLK - TO HI BEAM HEADS 11-.8LT GRN DIMMER SWITCH IGNITION SWITCH C S = IT _ J INDICATOR S (TELLTALE) SECTION C-PAGE 63

216 ELECTRONIC CONTROL MODULE CONNECTOR HORN RELAY ORN- IS m n in G COL SWITCHES! O *401, 46 S CHECK GAUGES RELAY H u t 4 2 2» r 1 * 49 8 L*.? J n. n ( «9 45 ' n I«3 * l l n - SEAT K L T *W ' FASTE BELTS IGNITION K3N KEY SW - 80 BATTERY * 0 LIGHTS ON SW. _ g I utlt P ~» - HAZARD FLASH CONVENIENCE CENTER BRN YEL- IGN GAUGES 20 AMP FUSE BLOCK r O CO r~i l D X ) _ j CD z a. D 00 t a DIRECTIONAL SIGNAL SW DIRECTIONAL FLASHER PNK/BLK- WATER TEMPERATURE TRANSDUCER ENGINE REAR DK BLU J PPL l/p PNK/BLK PNK/BLK BLK BRN YEL DK BLU- GENERATOR v - * W ^ w i m M ]»» m ' \ m S Y Y r y 4 - I INDICATOR S (GAGE) SECTION C PAGE S GRN/WHT' 0 B ^ PNK/BLK 25.8 BRN- TO A/C RELAY TO OIL PRESS RELAY [ H j» 06l 92 I. [ « j, ^ L ilj d L L a «3 9 H BRN/WHT J « TAN/BLK ENGINE H G E 3 [H D FG E ] G E T i \ i ^ GRN/WHT LT BLU- i / p > -... > C e *r^ i r^nh * [ C f 4 S l " f 4 6 T J F Dcm c=d e. J

217 RADIO ) HEATER LP " SEAT BELT LEFT TURN l/p COMP BOX LP (UTILITY ONLY) 50.8 BLK O LIGHTER ST BLT - JUMPER * a D O _ 9 i f a F i r j. - Q D L 39-8 PNK/BLK PNK/BLK - TO TCC SOLENOID ' PNK/BLK BLK SPLICE PNK/BLK - TO RH TURN 1 39! i l/p CLUSTER CONN. (TELLTALE) TO LH - TURN TAN/WHT- [ 39 l BRN BRN YEL 15.5 OK BLU DK BRN/WHT YEL DK BLU PNK/BLK DK BRN/WHT - W = \ f 11 7 ^ [ l 39H I I [ M Jl J SOL IBAT 1 BAT 2 cm m 1 IGN 1 ACC (5 5 1 IGN 3 BAT 3 m GRD 1 P s t ) GRD 2 r 3 3 l f BLK i LT BLU LT BLU M BRN/WHT TAN/BLK TAN/BLK BRN/WHT TAN/BLK - TO HI BEAM HEADS DIMMER SW ITCH O-r IGNITION SWITCH ± O START RUN OFF LOCK ACC INDICATOR S (GAGE) SECTION C-PAGE 65

218

219 a r\ a ndm l / P COURTESY REAR DOME WHT/BLK l/p COURTESY WHT ORN WHT ORN WHT DOME S (UTILITY) SECTION C-PAGE 67

220 r WHT RIGHT HAND DOOR JA M B SW ITCH GROMMET DOME 4r ORN W H T. I X S 00 <0 If) W H T F W HT ORN SPLICE ORN WHT COURTESY LAM P s 00 a> TO l/p COURTESY 1 11SS WHT WHT WHT ORN g 1 I Q "e TsE) S H 0 E ^ r -E i 0 a a a) ' ICM ACC IK MR O KEY-IN WARNING BUZZER SEE PAGE PWlt WOO a [X ] c ~ ] a Craw* fus P1B FRONT If FUSE BLOCK c a I p S I p S Ift/S akfi r a n C=3 b^s REAR. LEFT HAND DOOR JA M B SW ITCH r f 5" ^ TAN WHT GROMMET I (15911 IP M I f T s e } ^ W H T DOME (RPO C91) (03-53 MODELS) SECTION C-PAGE 68

221 CONVENIENCE CENTER HORN RELAY SCAT BELT SW FASTE BELTS IGNITION K2N KEY SW BATTERY LIGHTS ON SW I utlp I----p - O - HAZARD FLASH HORN BUZZER r n n ^ r a i i a l l 6 0 l Z J L Z U m OEiD El LT GRN LT GRN - LEFT HAND DOOR JA M B SW ITCH TAN- GROMMET * & U TAN - \> 19 1M 1(> 1 1 r X M 2H 1 80 «1f> )! (I KEY-IN WARNING BUZZER HEAD. PANEL & DOME S SW ITCH ORN- S ORN WHT/BLKl/P COURTESY LAM P T/L CTSY 20 AMP a PANEL & INTERIOR S CONTROL SW QiilP Grai? FRONT FUSE BLOCK B k S I k B I P ' S J k B a n REAR I Us BRIGHT I \ INSTRUMENT PANEL COURTESY (03-53 MODELS) SECTION C-PAGE 69

222 RIGHT FRONT SPEAKER V ANTENNA - n RIGHT REAR TREBLE SPEAKER ASH TRAY LP DK BLU LT BLU BRN j $ 0?Q OH 0 s i REAR SPEAKERS e m c 0> 0> HEATER -* LP - CONV. CENTER YEL TAN GRA DK GRN so 10 D Q! OH FRONT SPEAKERS l/p CLUSTER GAGES ONLY BLK I SPLICE 150 " V SPLICE : 8 ^ \ LT GRN GRA YEL BLK. M D S Q f P g p RADIO POWER RADIO RECEIVER l/p COMP. I BOX LP. (UTILITY ONLY) BRN LIGHTER INST., PNL. LPS. SEAT BLT JUMPER YEL LT BLU 46.8 DK BLU GRA 43.5 YEL LEFT FRONT SPEAKER LEFT REAR TREBLE SPEAKER LSSJH-Q FRONT FUSE BLOCK 0 C G & f l REAR RADIO EQUIPMENT (RPO UM2, UM3, U58) SECTION C-PAGE 70

223 RADIO EQUIPMENT SECTION C-PAGE 71

224 f r W F i l N 1 [ s i A 111 F I I - 1 B n A F C i *1D /ft IH K TAN/W HT DK BLU/WHT PNK R.H. W INDOW SW ITCH DK BLU jfc y : 66 - : I ^ BRN R.H. W INDOW MOTOR OPENING CLOSING NORMAL FUNCTION FUNCTION POSITION OPENING CLOSING NORMAL FUNCTION FUNCTION POSITION 0 G3 SI B (B IB GD r 0 ^ 0 0 E t f 0 < EEEBIBHJISE ^ a cs 63 " Smn BP Jls A c z» > - A r ~ m _, ^ b S - b c ^ - I» > - F O - F _ 3 - N X. OB O A BUS BAR C^] C 3 icaa a FRONT FUSE BLOCK r a C =3 D 3 B C=3 REAR L.H. W INDOW SW ITCH - A A r ^ j p - A T j 1 d c J > - r ~ B > -D l j > - F O - F O F O - F f O - C j P - a a C ^ ^ P " BLK PNK PNK DK BLU/WHT TAN/WHT - \ 8 \ cl ld 8 7 E Al < S OPENING CLOSING NORMAL FUNCTION FUNCTION POSITION v in j Ini/ g ; t H I [ c i r c u i t * 2 BREAKER L.H. W INDOW MOTOR POWER WINDOWS (RPO A31) SECTION C-PAGE DK BLU

225 GRA T A N BLK/WHT LT BLU S f t R R * D CN c E 1 jy f i i <D.B F g l A > * SPLICE 60 RIGHT DOOR r i O W h [ lo <0 «> J BLK ORN/BLK SPLICE j } E FRONT FUSE BLOCK 3] Bus BAR 0 CXlB'S REAR BLK - ITU * CD z c JtU * - J flq * flq 3 5 i S O CO 2 N h * t csi i in tj- O) > t - J _ J 9 5 * -J m z tc T95 I r * 194 T * RWD UNLOCK " ---- f I TV L.H. DOOR LOCK SW ITCH LEFT DOOR LT BLU BLK/WHT GRA TAN GRA TA N L.H. DOOR LOCK MOTOR POWER DOOR LOCKS (RPO AU3) SECTION C-PAGE 73

226 RADIO HEATER LP BLK WHT CONV. CENTER l/p CLUSTER. GAGES ONLY f 71 I I BLK- SPLICE 150 LIGHTER ) INST. PNL. j LPS. SEAT BLT. JUMPER BLK ORN r 140 l/p COMPARTMENT BOX LAM P BUS BAR z 3 D j s [ c ] E ) B (5 ] E l I -}-E l O B H B 0 3 E] a] ( a] [ I ] [ d [ d ^ GN ACC LPS I E a lm,c 3 I S [Ml CM] CMI DS T l CTSV TUflNBU HTR AC RADIO B * C3C=3 CRANK FUS KIR FRONT FUSE BLOCK REAR l/p COMPARTMENT BOX (RPO TR9) SECTION C-PAGE 74

227 CONVENIENCE CENTER HORN RELAY SEAT BELT SW FASTE BELTS IGNITION IGN KEY SW BATTERY 140 LIGHTS ON SW X. l/p COMPT. HAZARD FLASH WHT HI S) 0 (E E d) ES (ON ACC IPS r a c g e i E m < m SPLICE PNK/BLK TO ALTERNATOR - TO l/p CLUSTER l i x i TpmI j <r - CONN IGN/GAUGES 20 AMP TO TCC BRAKE SW (AUTO ONLY) FRONT FUSE BLOCK REAR SEAT BELT WARNING BUZZER SECTION C-PAGE 75

228 VISOR V A N ITY MIRROR BRN/WHT H H * VANITY MIRROR (RPO D64) SECTION C-PAGE 76

229 WINDSHIELD W ASHER PUMP IS} (3 E) E 0 E IS E 2 IS E) GDE H 0 E ^ O El ED E) 13 S) 0 E ACC IM ISJKLKl rjin ptst! r^ss-! te w wsc1 1 5 A IySTha - WIPER 25 AMP a n C =J EkS REAR WIPER WASHER. DIMMER SW. (COLUMN MOUNTED) 98.8 GRN GRA WHT WHT PPL 94.8 PNK WIPER/WASHER SECTION C-PAGE 77

230 CONTACTS CLOSED, WITH PEDAL AT REST VEHICLE SPEED SENSOR CRUISE CONTROL (RPO K34) SECTION C-PAGE 78 AUTOMATIC TRANS ONLY r q d M DID BRAKE SW 1201S197

231 -8.8 GRA- CYL ROD R.H. GAS CYLINDER REAR W INDOW DEFOGGER SW ITCH E 3 " PPL/WHT SPLICE PPL/WHT PPL/WHT----^ jt l,,1 'f c, * m *. j a ORN/BLK - z & GO BLK- 5 s! Q. REAR GRID DEFOGGER TIMER RELAY SOLID STATE F ] CO 9> CM < cc <D CO BLK - a I l5j l 1E, 1 _ J E E E BUS BAR E ED GO ] C=G I E * E 0 E l IS E 2 E H E ID E i ^ f l i (ON C=D E m u ACC IPS PWft I23JS1.WIK] 2 0 A rfcm ftst 2 3 m i g W * mj SC*e)r CM * _J m z a 11 I p H l l / s IH3 [X ] a n CYL ROD L.H. GAS CYLINDER FRONT FUSE BLOCK REAR REAR DEFOGGER (RPO C49) SECTION C-PAGE 79

232 CONTROL RELAY t = J f = l BLK BLK LIFTGATE RELEASE SW ITCH O) * CO O N * BRN GROMMET TAIL GATE SOLENOID * _ i CD O MTT O (i] E E) E) HI Eg a a iii s hi E E 0 (H 0 E 0 0 i ID ACC IPS PWN < LIFTGATE RELEASE SECTION C-PAGE 80 '. a e s B S 0 3 O S K l T l CTSV T U **iu MTAAX H I awo P il *cmv = B C 3 K 3 q C3 a FRONT FUSE BLOCK c = 3 a a C 3 S 'S REAR

233 156.8 WHT ORN FOR CONTINUATION OF ROUTING. DOOR JAMB SEE DOME SWITCHES (RPO C91 ST100-03I53){FROM FROM FUSE BLOCKS WHT ORN---- I * WHT ORN.E H. a E ORN ORN- CARGO (RPO UF2) SECTION C-PAGE 81

234 75.8 OK BLU FRAME R.H. SIDE MARKER BACK-UP SWITCH (MANUAL TRANS) TRANSMISSION NEUTRAL SENSE & BACK UP SW (AUTO TRANS) SPLICE BLK *- I GROMMET «> R.H. TAIL. STOP. & DIR. BACKUP AC a 24.8 LT GRN SPLICE 24 - TRAILER WIRING AUTO TRANS Z CC a GROMMET L.H. BACKUP BACK-UP S (UTILITY) SECTION C-PAGE S LT GRN L.H. SIDE MARKER

235 75.8 DK BLU 24.8 LT GRN R.H. SIDE MARKER BACK-UP SWITCH (MANUAL TRANS) AUTO TRANS T n p S I TRANSMISSION «=> NEUTRAL SENSE V*. \ & BACK UP SW. (AUTO TRANS.) SPLICE 150 R.H. M TAIL. STOP, & DIR *. j R.H. BACKUP LT GRN LT G R N AUTO TRANS EJ E E B El IS E E E 0 E E E E E E ffl B E E IGM ACC LPS PW* m\ e X w ra E 9»tin J CNWACC B as K l H K 1 E L G 3 FRONT FUSE BLOCK a B k S S /S IP 'S J k B C=D [ X ] C =3 E ks REAR n D CD Q 3 flq * Q in AUTO TRANS BE M * CD s RH LICENSE LH -< LICENSE l/p s M L.H. BACKUP U L J (< 0 ] i. r H 9 I I * * l MAN TRANS 75.8 DK BLU I MAN TRANS LT GRN SPLICE 150 L.H. TAIL. STOP, & DIR 1? LT GRN FRAME L.H. SIDE MARKER BACK-UP S (EXCEPT UTILITY) SECTION C-PAGE 83

236 FRAME HEAD. PANEL & DOME LAM PS SW ITCH ( S R. H. SIDE MARKER TO l/p COURT S GROMMET R.H. TAIL, STOP, & DIRECTIONAL LAM P TO PANEL S DIMMER SPLICE x:e9 \ 9-8 BRN HO LP ON? n a, * c 24 C l BRN- SPLICE BRN- * - j ( Z CC fld z cc c CO m v : l/p 12 J ( ~ I : ** L 0 ] I. r I : ' IB (S B IB (B B O ' B IS E IB (S B w g D S 3 a H Q d z c fld c 00 0) S P LIC E ^^^^ TO TRAILER BLK SPLICE 150 BACKUP LICENSE FRONT FUSE BLOCK REAR a n BLK SPLICE 150 BACKUP GROMMET * -j L.H. TAIL, STOP, & DIRECTIONAL ? * «N ^ «i «- N D l BRN- < SPLICE BRN' N K> 1 n 9.8 BRN TAIL S (UTILITY) SECTION C-PAGE 84 I n 15» y ^ -jy 19 CD ] 9.8 BRN n. n q s s s n Q t * a s a > i FRAME L.H.l SIDE MARKER

237 TO FORWARD LIGHTING TO l/p COURT S HEAD. PANEL & DOME S SWITCH R.H. TAIL, STOP, & DIRECTIONAL 9.8 BRN J I t H 24 * I 18 I* » * L U> I » l.i IB a OS 0 (E IQ IB IB B (5 BS IB < Q S H I n ON ACC IPS C 3 IkS ll/fi L.H. TAIL, STOP, & IRECTIONAL LAM P I k s I k s J z tc m c d> a m C 3 D 3. C 3 0 / S FRONT FUSE BLOCK REAR TAIL S EXCEPT UTILITY) SECTION C-PAGE 85

238 HEAD. PANEL & DOME S SW ITCH FRAME TO l/p CTSY S 9.8 BRN BRN : 9 12 L J ( U I. r : 98 ' I ISISSI E B B B B IS IB SI 10 B B B 1 B IE S H qd "itti r ^ i p?r te v t f y hey q i P Q D CXI C=3 ' caa q FRONT ^ -----S FUSE BLOCK REAR BRN LICENSE S (UTILITY) SECTION C-PAGE BRN

239 TO FORWARD LIGHTING HEAD. PANEL & DOME LAM PS SW ITCH R.H. SIDE MARKER TO l/p CTSY S \ TO PANEL S DIMMER 9.8 BRN - SPLICE 9 V l/p II is 141 I 9J I f i t u i. r b l LICENSE R.H. LICENSE LAM P EJ EJ (S B GB El m B OD 0 0 a B E E < 0 E 0 S S) HI ON ACC I K PWN C 3 C 3 E J G D mt iir m n sr E S U S L C 3 s g UsT i c m U M i* ijj i a I J / f i i k S I I t ' S I k f f l L.H. TAIL. STOP & DIR t 09 CSl K3 C 3 C 3 DX3 FRONT FUSE BLOCK REAR L.H. SIDE MARKER LICENSE S (EXCEPT UTILITY) SECTION C-PAGE 87

240 TO REAR DOME LP - TO LH DIR LP - TO TAIL & SIDE MARKER LPS TO RH DIR LF - TO BACKUP LPS TO FUEL PUMP SENSORS c : is 6 : AUXILIARY WIRE D OS Q r>i ri WHT < 4 7 J <jd < jf) < D TAIL LIGHTS LH DIR RH DIR TRAILER DIRECT GRD BACK UP LP AUX. CKT TRAILER ( ^ NAT WHT <D TAIL LIGHTS LH OIR RH OIR TRAILER DIR GRD BACK-UP LP AUX. CKT TRAILER TRAILER W IRING SECTION C-PAGE 88 SHEET M ETAL RPO U 89 ( ) RPO U 89 (UTILITY) SHEET M ETAL

241 RED 3 0 AM P IN LINE FUSE JUNCTIO N BLOCK (REF ENG WRG BATTERY CIRCUIT) ea Q 1U i?? N BATTERY - 2 TAIL LIGHTS -1 9 LH DIR -1 8 RH DIR -1 9 TRAILER DIR GRD BACK-UP LP AUX CIRC TRAILER SHEET M ETAL HEAVY DUTY TRAILER WIRING (RPO UY7) SECTION C-PAGE 89

242

243 1988 R/V TRUCK S E C T I O N D P A G E D E S C R I P T I O N P A G E D E S C R I P T I O N 2 POWER DISTRIBUTION (GASOLINE) 48 ECM CHART (DIESEL) 4 POWER DISTRIBUTION (DIESEL) 49 ELECTRONIC CONTROL MODULE (ECM)-INPUTS (DIESEL) 5 AUXILIARY BATTERY (TP2) 50 ELECTRONIC CONTROL MODULE (ECM)-OUTPUTS (DIESEL) 7 FUSE BLOCK DETAIL 52 TRANSMISSION CONVERTER CLUTCH DETENT SOLENOID 8 HEAD S & PARKING S 53 AUTOMATIC TRANSMISSION KICKDOWN SOLENOID (M40) 10 MARKER S 54 AIR CONDITIONING (C60) 13 ROOF MARKER S 55 REAR AIR CONDITIONING (C69) 14 HAZARD S 56 HEATER 17 DIRECTIONAL S 57 AUXILIARY HEATER (C36) 20 HORNS 59 INSTRUMENT PANEL S 21 START (6 CYL.) L25, (8 CYL.) LE8, LT9 60 INSTRUMENT PANEL GAGES 22 START (8 CYL.) L05, L19 62 INDICATOR S 23 START (DIESEL) LL4, LH6 64 SEAT BELT WARNING BUZZER 24 IGNITION (6 CYL.) L25 65 BRAKE WARNING SYSTEM 25 IGNITION (8 CYL.) LE8, LT9 66 FOUR-WHEEL DRIVE INDICATOR 26 IGNITION (8 CYL.) L05, LT9 68 DOME S 28 THROTTLE BODY INJECTION 69 CARGO (UF2) 29 HOT FUEL HANDLING 70 RADIO EQUIPMENT (UM6, UP8) 30 GLOW PLUGS (DIESEL) 71 RADIO EQUIPMENT (U63) 32 ENGINE CONTROLS (DIESEL) 72 POWER WINDOWS (A31) 34 FUEL CONTROL & IDLE AIR CONTROL (8 CYL.) L05, L19 74 POWER REAR WINDOW (A33) 35 AUXILIARY COOLING FAN 75 REAR DEFOGGER (C49) 36 AUXILIARY FUEL TANK (NL2J/FUEL TANK SELECTOR SWITCH 76 POWER DOOR LOCKS 38 EMISSION CONTROLS 78 WIPER/WASHER 43 ELECTRONIC CONTROL MODULE (ECM)-INPUTS (8 CYL.) 79 PULSE WIPER/WASHER (CD4) L05, L19 81 BACKUP S 44 ELECTRONIC CONTROL MODULE (ECM)-OUTPUTS (8 CYL.) 84 TAIL S L05, L19 88 LICENSE S 47 ECM CHART (8 CYL.) 92 CAMPER & TRAILER WIRING IN D E X SECTION D-PAGE 1

244 TO BRAKE WARNING SYSTEM * - i m > IF ill V GENERATOR J -8 BLK BATTERY POWER DISTRIBUTION L CYL. LE8, L T 9 -V 8 SECTION D-PAGE 2 SHEET m e t A l ENGINE RPO TP2 (IF EQUIPPED) SHEET METAL FUSE BLOCK

245 RN/WHT - RPO TP2 (IF EQUIPPED) FUSE BLOCK SEE PAGE REAR POWER DISTRIBUTION L 0 5, L I9 -V 8 SECTION D-PAGE 3

246 BRN/WHT TO BRAKE WARNING SYSTEM n SHEET n... t v METAL PO W ER D IS T R IB U T IO N L L 4, L H 6 DIESEL RIGHT HAND LEFT HAND BATTERY BATTERY SECTION D-PAGE 4 FRONT FUSE BLOCK REAR

247 JUNCTION BLOCK RED. FUSIBLE LINK SPLICE RED- COWL SHEET METAL AUXILIARY BATTERY RELAY RED GROMMET BLK BRN/WHT' r U / 150 H BLK RED _ FUSIBLE LINK SPLICE RED- SPLICE 2. & SHEET METAL IQ. 1S0-.8 BLK + AUXILIARY BATTERY FRONT FUSE BLOCK REAR RED w JUNCTION BLOCK AUXILIARY BATTERY (RPO TP2) SECTION D-PAGE 5

248 SECTION D-PAGE 6

249 POWER CIRCUIT AMP CIRCUIT BREAKER TAIL GATE-POWER WINDOW POWER WINDOWS IGN/ACC AUTO TRANS/CONV CLUTCH MD8 DIESEL ONLY AUXILIARY BATTERY FOUR WHEEL DRIVE ILL LP PANEL S REAR DEFOGGER CRUISE CONTROL REAR DEFOGGER FOUR WHEEL DRIVE IND. LP DIESEL AUXILIARY FUEL TANK SELECTOR SWITCH POWER CIRCUIT AMP CIRCUIT BREAKER CLOCK DOME & -CARGO HTR E K REAR A/C [ r D C A U A ir> REAR DEFOGGER POWER LOCKS BRN-AUX HEATER A/C 43.5 YEL-RADIO GRA-INSTRUMENT LPS DK GRN LT SW RHEOSTAT BRN-AUX HEATER A/C RED-BATTERY ORN-HAZARD FLASHER ORN IGNITION YEL-RADIO 43-1:0 YEL-RADIO BRN-HEATER A/C BRN IGNITION SW -A C C 93.8 WHT W/S WASHER PNK IGN PWR WDO ORN-BATT FUSED HORN/DM SHUNT PNK IGN SW-ENG-IGN 39.8 PNK/BLK-IG N-O N & CRANK-FUSED ORN TAIL LPS/CTSY LPS/PARK LPS RED-IGN S W -B A TT J / g - J ORN-ECM B 38.8 DK BLU-DIR SIG FLASHER 93.8 WHT W/S WASHER PPL DIRECT SIG SW DK BLU-DIRECT SIG FUSE ORN IGNITION PNK DBL WHT STR-CHOKE HEATER 75.8 DK BLU-BACKUP LP SW PNK/BLK-ECM-FUSED PNK IGN PPL STARTER SOLENOID FEED PPL/WHT-ECM CRANK FUSED PNK IGN PWR WDO FRONT BLOCK-MOLD PRINTED BLOCK REAR COLOR MALE CONN A NAT B BRN C BLK D GRN E RED W BLU F DK GRA FUSES AMP COLOR TAN RED LT BLU YEL WHT VIOLET BROWN LT GRN NOTE LL4/LT9/LE8/L25 ENGINES DO NOT USE THE CRANK ECM I OR ECM B FUSES LH6 ENGINES DO NOT USE THE CRANK FUSE L05/L19/LH6/LL4 ENGINES DO NOT USE THE CHOKE FUSE FUSE BLOCK SECTION D-PAGE 7

250 R.H. SIDE MARKER R H HIGH-LOW HEADLAM P m (3 0 E 0 E IS (El E. El 1 S 9 S 1 1 < * ' 0 13 B 0 E 11 E ATT ICN ACC I K PWft n n r «n SH U N T SH U N T n *! US 3 0 A w rcr r ^ n RsaI J a g ri Wr^V l G & r a Q s ) E iild Q D D i f e E m n Q D HnH EE3UQE] l/p CLUSTER CONN. lunn'mu FWRWDO C ] [M3 Gii sfcmi a CHOKE a _ _ f r n t K B S C =3 B ^ l REAR qdslei s u e d FUSE BLOCK 11.8 LT GRN RED RED I 12 9 M» 4 lf BRN I 25 I 31 3 * 1 6 I l n 12.8 TAN L.H. HIGH-LOW HEADLAM P LT GRN DIMMER SWITCH SHEET METAL HEADS & PARKING S-BASE SECTION D-PAGE TAN LT GRN BRN

251 R H HIGH-LOW HEADLAM P SHEET METAL BLK BLK FRAME Q J BLK LT GRN TAN SPLICE 151 R.H. SIDE MARKER z cc m m 9> S3 S3 19 H IB IB 00 IS E 13 H B 15 (0 E < w /-O BD SI IB ATT ION ACC IM WWW HUM? SwH? P i* gg] qg] NTH IB NM A/C [ M ] GET c m u _ ^ a a FRONT REAR D 3 r n u r ^ HIDnCE] D H] D j d ] S U O D l/p CLUSTER CONN. FUSE BLOCK R.H. PARK & DIRECTIONAL z c ( RED LT GRN RED BRN R.H. HIGH BEAM HEADLAM P BLK LT GRN. SPLICE 11 c (D L.H. HIGH BEAM HEADLAM P SHEET METAL LT GRN FROM AUXILIARY >---- COOLING FAN (LE8. LI9 & C60) BLK BLK- SPLICE 11 7 c (9 = _ < cc cc P h- OD CS *7 c in i- csj > a> LT GRN a U J c j TAN 9.5 BRN i 9! ] ~3i~[ 9.8 BRN HEADLAM P SW ITCH YEL BLK BRN 9.8 BRN ' p ^ J] 12.8 TAN L.H. HIGH-LOW HEADLAM P L.H. PARK & DIRECTIONAL BLK LT GRN 12.8 TAN TAN----- z c SPLICE TAN 29 - T V W 93 1 i n z LT GRN * >1 DIMMER I F T SW ITCH hateml I 11 >1 * L L.H. SIDE MARKER LT GRN ' 9.8 BRN HEADS & PARKING S (RPO V 2 2 ) SECTION D-PAGE 9

252 0 R.H. SIDE MARKER HEAD SWITCH R.H. SIDE MARKER 9-.8 BRN- SPLICE 9 R.H. TAIL, STOP & DIRECTIONAL R.H. PARK & DIRECTIONAL l/p SHEET METAL SPLICE 150 BACKUP IS 14 j I U 9 194J r ^ ' ' i ] J l ' H r l LICENSE SPLICE 150 L.H. PARK & DIRECTIONAL BLK BACKUP 9.8 BLK - SHEET METAL SPLICE 9 L.H. TAIL, STOP ) DIRECTIONAL MARKER S (UTILITY VEHICLE) SECTION D-PAGE B L.H. SIDE MARKER is a s e si a a a as e a m a a a s f f l t c sbs 8S? fv j m l- ~ Ur!* Uns1!S1 ^ M l S FRONT FUSE BLOCK a E 9 O j 0 C 3 b ^ b REAR R.H. SIDE MARKER LAM P

253 HEAD SWITCH RIGHT HAND SIDE MARKER 9.8 BRNr BACKUP R.H. PARK & DIRECTIONAL LAM P TAIL, STOP, & DIR Z c BRN SPLICE 9 LICENSE S LEFT HAND TAIL, STOP, & DIR 9.8 BRN- BACKUP 3d SIDE MARKER FUSE BLOCK MARKER S STEPSIDE PICKUP (E 62) SECTION D-PAGE 11

254 HEAD SWITCH WIDESIDE PICK UP R H SIDE MARKER R.H. TAIL. STOP & DIRECTIONAL R.H, PARK & DIRECTIONAL MARKER LAM PS FLEETSIDE (E63) WIDESIDE (R 05) SECTION D-PAGE 12 FRONT FUSE BLOCK REAR NU8 8-01?...\ WIDESIDE PICK-UP IR05 ONLY) L.H. SIDE MARKER L.H. TAIL, STOP & DIRECTIONAL

255 RIGHT MARKER HEAD SWITCH K I s / FRONT / IDENTIFICATION < S z: j * mj CB CO CLOCK CD 00 E 0 0 B S E 10 I I *** E E] EDa H OS IB II < O B 1 1 E I ATT ION ACC LPS WWW 8*3 QSSP n a n r w i Rs*" l'3 j JrtS ic hcw ("Is a I r i g l Rs*. a w iv l, ~ lj \ _J CD 00 * LO <0 «CO FRONT FUSE BLOCK REAM LEFT MARKER BLK 45.f3BLK m BUS BAR g r u n d I I I ROOF MARKER S (RPO UQ1) SECTION D-PAGE 13

256 SHEET M ETAL R.H. HEAD CONNECTOR BLK BLK FRAME 3 ) BLK SPLICE BLK R.H. SIDE MARKER D CO D R.H. HEAD CONNECTOR BLK FRAME BLK SHEET M ETAL R.H. SIDE MARKER r^sl D I D [ l S ' U r ~ 3 9 ~ g i S Q D 39 [Jj 237 [ HElnO U G n is D II R T illf ^ i TO l/p CLUSTER 15.8 DK BLU SPLICE BLK - R.H. PARK & DIRECTIONAL R.H. HIGH BEAM HEAD CONNECTOR J E D (c m I E BLK FROM AUXILIARY COOLING *" FAN (LE8. L19 8>C60) R.H. PARK & DIRECTIONAL BLK BLK DK BLU SPLICE 151 SPLICE. / FROM AUXILIARY COOLING FAN ILE8. L19 & C60I SPLICE DK BLU LT 8LU- "14 STOP SWITCH 15.5 DK BLU 17.8 WHT ORN- SHEET METAL BLK O - j t *a D _i t *O * a ir> in 14.5 LT BLU YEL 18.8 YEL DK GRN L.H. HIGH BEAM HEAD CONNECTOR BLK SPLICE L.H. PARK & DIRECTIONAL i/p 19 8 DK GRN - L.H. PARK & DIRECTIONAL L.H. HEAD CONNECTOR J I 9 U I illljr HAZARD S SECTION D-PAGE BLK BLK 14.8 LT BLU SIDE MARKER SPLICE 14 D flq 3 -J00 m TO BULKHEAD CONNECTOR I L.H. HEAD CONNECTOR SHEET METAL BLK BLK LT BLU SPLICE L.H. SIDE MARKER DK BLU LT BLU U A i g g B a B l B n f l I l I j L n J M r ^ l f ^ H i 33 )

257 CONVENIENCE CENTER HORN RELAY I SEAT BELT SW FASTE BELTS IGNITION IGN KEY SW BATTERY LIGHTS ON SW. O 2* "2371[ 39 I Hi S C K I a T r r n i MAN S 13 U Q B (9 g i WOO 0 a a a e A rr K«N ACC LPS PWR SS*t smcst r v i P Y - ] ("20*1 fl*"] f lw l Pisa * m' a (OM *u *i M T?T c stc^ma [M i ls ] is ) [Jg r i c T jr culmx i n m t r a. 7 * a «Q m m SPLICE BLK BLK DK GRN BLK FROM SIDE MARKER SH EET M E T A L G R O U N D R.H. T A IL, S T O P & TiT) D IR E C T IO N A L L A M P [ X ] 19.8 DK GRN REAR ) -** FROM BACK UP 19.8 DK GRN 19 8 DK GRIM i I SPLICE DK GRN 18.8 YEL 18-8 YEL 19.8 DK GRN 17.8 WHT DK GRN 18.8 YEL ---- b e (S T E E R IN G C O l S W lt C H ts l "T" BLK -*f FROM BACK-UP L.H. T A IL S TO P & D IR E C T IO N A L L A M P BRN DK BLU 14.5 LT BLU X B H O H N u "*T5 - KEY J NORM ALLY OPEN S W IT C H E S i j g DIRECTIONAL SIGNAL SW SPLICE YEL BLK 18.8 YEL (06) FROM SIDE MARKER a BLK MODELS - e C c ^ i SH EET M E T A L G R O U N D HAZARD S SECTION D-PAGE 15

258 FROM R.H. SIDE MARKER FROM RH FRONT & REAR CLEARANCE S (RPO R05 ONLY) BLK 19.8 DK GRN ~ R.H. TAIL STOP & DIRECTIONAL (PART OF RH TAIL, STOP, DIRECTIONAL, & BACK UP ASM) m LAM P AS M e r a (RPO E63 ONLY) DK G R N FROM BACK-UP FROM END GATE - < IDENTIFICATION S (RPO E63 ONLY) R.H. TAIL, STOP & DIRECTIONAL 18.8 YEL RPO R05 ONLY TO BULKHEAD CONNECTOR FOR REMAINDER OF CIRCUIT SEE HAZARD S e c a H S D = (RPO E63 ONLY) LAM P ASM r L.H. TAIL, STOP & DIRECTIONAL (PART OF LH TAIL, STOP. DIRECTIONAL, & BACK-UP ASMI TO BULKHEAD CONNECTOR FOR REMAINDER OF CIRCUIT SEE HAZARD S FROM LH FRONT & REAR CLEARANCE S (RPO R05 ONLY) FROM END GATE IDENTIFICATION S (RPO R05 ONLY) FROM BACK-UP BLK 18.8 YEL SPLICE FROM L.H. SIDE MARKER BLK L.H. TAIL STOP & DIRECTIONAL SHEET METAL ecg-li' HAZARD S SECTION D-PAGE & 4 3 W /O RPO E62, E63 STEP SIDE PICKUP RPO E62 FLEETSIDE P IC K U P-R P O E63 W IDE SIDE PIC K U P -R P O R 05

259 FROM R.H. SIDE MARKER r R.H. TAIL STOP & DIRECTIONAL (PART OF RH TAIL, STOP. DIRECTIONAL, & BACK-UP ASM) FROM RH FRONT & REAR CLEARANCE S (RPO R05 ONLY) BLK 19.8 DK GRN FROM BACK-UP R.H. TAIL, STOP & DIRECTIONAL e t g ( S v = 0 - FROM END GATE IDENTIFICATION S (RPO E63 ONLY) * CO 00 ASM (RPO E63 ONLY) DK GRN YEL RPO R05 ONLY TO BULKHEAD CONNECTOR FOR REMAINDER OF CIRCUIT SEE DIRECTIONAL S < 9 EiiU- g / X.j CD 00 FRAME (RPO E63 ONLY) 2 DC (5 Q > 00 m ASM TO BULKHEAD CONNECTOR FOR REMAINDER OF CIRCUIT SEE DIRECTIGNAL S 7 m u? I FROM END GATE IDENTIFICATION S (RPO R05 ONLY) FROM BACK-UP BLK L.H. TAIL STOP & DIRECTIONAL.8 YEL ' r L.H. TAIL, STOP & DIRECTIONAL (PART OF LH TAIL. STOP. DIRECTIONAL. & BACK-UP ASM) FROM LH FRONT & REAR CLEARANCE S (RPO R05 ONLY) YEL SPLICE FROM L.H. SIDE MARKER BLK - SHEET METAL H i ' 0 3 & 43 W/O RPO E62, E63 STEP SIDE PICKUP-RPO E62 FLEETSIDE PICKUP-RPO E63 WIDE SIDE PICKUP-RPO R05 DIRECTIONAL S SECTION D-PAGE 17

260 BLK SHEET METAL R.H. HEAD CONNECTOR BLK FRAME BLK ^ l l SPLICE R H SIDE MARKER D_i 03 * R.H. HEAD CONNECTOR BLK FRAME R.H. SIDE MARKER r a & l Q D n a m p j 11 SO I U r 39 I G U I S B D Q D U E z ] D n Q I] O H q i i IS TO l/p CLUSTER BLK DK BLU i i SPLICE BLK R.H. PARK & DIRECTIONAL BLK BLK SPLICE DK BLU SPLICE DK BLU LT BLU- R.H. HIGH BEAM HEAD CONNECTOR BLK - FROM AUXILIARY COOLING ~ FAN (LE8. L19 & C60) R.H. PARK & DIRECTIONAL SPLICE FROM AUXILIARY COOLING. FAN ILE8. L19 & C60I 15.5 DK BLU LT BLU L.H. HIGH BEAM HEAD CONNECTOR SHEET METAL I l BLK BLK SPLICE 150 ' J ' 13 - i m * a L.H. PARK & DIRECTIONAL D CD 18.8 YEL YEL DK GRN DK GRN BLK LT BLU SPLICE BLK LT BLU SPLICE 14 L.H. PARK & DIRECTIONAL L.H. HEAD CONNECTOR BLK m l- TO BULKHEAD CONNECTOR L.H. HEAD CONNECTOR DIRECTIONAL S SECTION D-PAGE 18 L.H. SIDE MARKER J fl ( W j SHEET METAL BLK L.H. SIDE MARKER DK BLU* LT BLU-

261 8 3 B 3 IS B I!IO O d > I m a B IB ID ID < *" O IS 9 B ID ID ID O ' ATT m ACC IM W W B^SS*5 DC FUSE BLOCK SPLICE 150 < BLK BLK DK GRN - SHEET _ g g ^ _, METAL FROM SIDE MARKER R.H. TAIL, STOP & DIRECTIONAL BLK DK GRN (16) DIRECTIONAL FLASHER PPL FROM BACK-UP 19.8 DK GRN SPLICE 19 * DK GRN YEL DK GRN FROM BACK-UP DK GRN YEL PPL DK BLU BLK YEL L.H. TAIL STOP & DIRECTIONAL LT BLU BLK I YEL (06) SPLICE 150 ( - FROM SIDE MARKER BLK -ecch> MODELS SHEET METAL DIRECTIONAL S SECTION D-PAGE 19

262 CONVENIENCE CENTER U M k HELAV I J RIGHT HORN Z OC 0 _ j CO RPO Z 62 SCAT K L T SW FASTE BELTS IGNITION IGN KEY SW BATTERY LIGHTS ON SW SO BUZZER C D f v i s j r a Q ( 2 3 S ll > a> M 1 -O- HAZARO FLASH 28.5 BLK O cc O r eg a DIRECTIONAL SIGNAL SW * Q ORN c HORN/DM 20 AMP. E) El S) B E IB ««E E) E) E H IB IB E i * O 0 E] S Og (B IB E a t t tm a c c ip s mtm n n rj - HUNT SHUNT 0 TJ TT &J FRONT FUSE BLOCK 9 63 ) 0 C=3 B^a REAR HORNS SECTION D-PAGE 20

263 TO PARK BRAKE WARNING SW. l/p CLUSTER CONN. FUSE BLOCK START (L25-V6; LE8, LT9-V8) SECTION D-PAGE 21

264 19 BLK PPL - STARTER MOTOR SOLENOID 7 * UJU1 cc 2 <? = N u. JUNCTION BLOCK TO PARK BRAKE WARNING SW. l/p CLUSTER CONN. L2.8 RED SPLICE ' COWL ENGINE ENGINE START LL4, LH 6 - DIESEL SECTION D-PAGE 22 FUSE BLOCK

265 . 32 BLK RED PPL TAN/WHT RED' SPLICE JUNCTION BLOCK STARTER MOTOR SOLENOID fsjl j g> Q H f i a m p u 11 SO I U [~~39~ Q E n E ill 39 [ U H n Q U ' Qs] Q T], TO PARK BRAKE WARNING SW. l/p CLUSTER CONN. SPLICE 2 COWL Q D I & RED- d U R T i I ~11 3 t 1 ^3 6 a 97 r» F f X, i ' RED- v & IP -H ] <y GENERATOR j BRN RED RUST- 2.8 RED RED- - e O SPLICE 2 TO GLOW PLUGS CONTROLLER O ID cc -i lu CD CC CO CD 32 BLK - RIGHT BANK GLOW PLUGS Q \ -32 BLK r 32 BLKy 3 BLK- n METAL,, n n + - RIGHT HAND BATTERY + - LEFT HAND BATTERY 3 BLK LEFT BANK GLOW PLUGS FUSE BLOCK E 9 ^ 3 ) [X] J START L05, L1 9 -V 8 SECTION D-PAGE 23

266 -b O h I- l/p CLUSTER CONN. TO G ENERATOR BRN IGNITION L2 5 -V 6 SECTION D-PAGE 24 FUSE BLOCK

267 15.8 BLK TO A/C COMP (LE8 ONLY) l/p CLUSTER CONN. TO GENERATOR BRN FUSE BLOCK IGNITION LE8, LT 9 -V 8 SECTION D-PAGE 25

268 439.8 PNK/BLK PNK/BLK BLK/RED PPL/WHT W H T TAN/BLK BLK/RED PPL/WHT W HT TAN/BLK * 00 z. 9> CO L J O - f l A D -! n J r > <LJ S PNK- TO INJECTORS W HT- TACHOMETER r ELECTRONIC CONTROL MODULE CONNECTORS DISTRIBUTOR. TO EVRV SOL. TO AIR SOL.»L05 HD ONLY C SPLICE , 48 2 r TO AIR SOL. TO EGR SOL. L05 HD ONLY TO HALF FUNCT. ESC SPLICE 39 TO AUX FAN COOLING SW (49 ONLY) TO KICK-DOWN SOL. I *m PNK/BLK PNK/BLK PNK/BLK BRN z Ob PNK/BLK BRN/WHT- l/p PNK TO ENGINE CONN. ENGINE RED BRN RED. -TO BATTERY E g IDQDGDGIII23»~li Ii ic U GENERATOR TN/WT TN/WT- IGNITION L05, L 1 9 -V 8 SECTION D-PAGE 26

269 CONVENIENCE CENTER l/p CLUSTER CONN. FUSE BLOCK IGNITION L05, L 1 9 -V 8 SECTION D-PAGE 27

270 OXYGEN SENSOR PNK/BLK PPL THROTTLE POSITION SENSOR BLK DK BLU GRA SPLICE / r ~ * 452 / V TO COOLANT TEMP SENSOR PPL BLK DK BLU GRA BLK ELECTRONIC CONTROL MODULE CONNECTORS LT BLU - TO MAP SENSOR LT GRN PNK/BLK INJECTOR 1 - TO EVRV SOL. TO AIR SOL. _ (L05 HD ONLY) LT BLU RED - TO AIR SOL. TO EGR SOL. - (L05 LD ONLY) DK BLU GRA INJECTOR LT GRN WHT SPLICE * -i m c d> c a TO HALF FUNCT. ESC I j l 2» l i i If PNK/BLK - 00 B3 03 (9 a (B SS QD E m SI 09 B IB IQ IB ffl IB (0 IB SI ATT MM ACC LPt WWW SHUN? C iu? r v IJ? Ifgl I a m B m m m m i FRONT S FUSE BLOCK ESSz3CIp a EkB REAR * - j m z a.»n««i EJtZJ ) TO VSS (L05/L19) THROTTLE BODY INJECTIO N L 0 5 /L 1 9 ONLY SECTION D-PAGE

271 HOT FUEL HANDLING MODULE IGNITION SW. FUEL PUMP FUSED 0GEl CZI E s G D c m F td \ GI }D C D H E h C D H BLK TO PARK/ - NEUTRAL SW. - TO BRAKE SW TO ECM ELECTRONIC FUEL PUMP TO ECM PNK/BLK TAN/WHT 0 SI ffl S E S) 23 "**" mi SI B (5 IS IB SI IS a a is s >S SATT S H U N? Hsn tn * c c im ram SHUN? SA HT* IB I 2 0 A 1 ( " m A tn a i^ m tb X c qsaipan [tsa- K l T \ CT*V BAUQCIOU WnA?C CADlS" TsT WCS1lwAwJ SG3H _ [ M l [M 3 c d ECM I CHOtt a FRONT FUSE BLOCK E ) [ X 3 f r f l REAR 30 ) TAN/W HT PNK H O T FUEL H A N D L IN G L 0 5 / L 1 9 V 8 SECTION D-PAGE 29

272 SPLICE v J U U - «i FUEL SHUT- OFF VALVE SEE PAGE GLOW PLUGS - L L 4 DIESEL SECTION D-PAGE 30

273 ( 5 ENGINE BLK BRN THERMO BRN THERMO FROM ECM FROM BULKHEAD CONNECTOR SPLICE BLK FROM FUEL PRESSURE SWITCH FROM WATER IN FUEL SENSOR FROM RH BATTERY ( - ) FUSIBLE LINK RIGHT BANK GLOW PLUG SPLICE 509 SPLICE 503 TO STARTER GRN GRN- FUSIBLE LINK THERMO HW SPLICE 509 GLOW PLUG CONTROLLER PPL ORN LT GRN/BLK BLK GRN GRN ORN THERMO HW GRN GRN - TO COLD ADVANCE SOLENOID & COLD ADVANCE CONTROL RELAY SEE ECM-OUTPUTS LH6, PAGE GRN GRN FUSIBLE LINK THERMO HW SPLICE 503 SPLICE 503 )S 0 3 TO GLOW PLUGS WAIT S - < FROM LH BATTERY ( - ) LEFT BANK GLOW PLUG / SPLICE RUST - FUSIBLE LINK FROM «BATTERY & ALTERNATOR GLOW PLUG S-LH 6 DIESEL SECTION D-PAGE 31

274 FAST IDLE SOLENOID COLD ADVANCE CONTROL COLD ADVANCE FAST IDLE TEMPERATURE SW ITCH V ACUUM REGULATOR VALVE SW ITCH I n ' I DK GRN PNK/BLK DK GRN SPLICE PNK/BLK PNK/BLK FUEL PRESSURE m z a. WATER IN FUEL SENSOR PNK/BLK YEL BLK - SPLICE PNK TRANSM ISSION SW ITCH IM40) PNK/BLK TO LOW COOLANT WARNING TO LOW COOLANT WARNING MODULE 39 8 PNK/BLK FUEL HEATER r c ] ,J } 'i BLK 39.8 PNK/BLK O 9 in TO l/p CLUSTER CONN ENGINE BLK- SPLICE PNK/BLK- l/p E) 1 0 E EOS] *»«B E m u PNK BLK- ENGINE I * * I I I IS EI BATT IGN ACC l*s PWR SH U N T S H U N? P s a " " * l 1 * IN^T L K PWR ACC TT8ftfcT20A~] ria n r ia >GN_ AUX HTR A/C STOPMA GLOW PLUG CONTROLLER DIESEL ENGINE CONTROLS-LL4 SECTION D-PAGE 32 FUEL SHUT- SPLICE 3 OFF VALVE A - =53= i f S i l l l 92 j 3 D l D B C l B li J PNK- FRONT FUSE BLOCK a l y a 0 C=G S^B PNK- REAR

275 COLD _ n _ ADVANCE FAST IDLE TEMPERATURE SW ITCH FUEL SHUT OFF VALVE DIESEL ENGINE CONTROLS -L H 6 SECTION D-PAGE 33

276 IDLE AIR CONTROL (L19) HOT FUEL HANDLING MODULE FROM ENGINE HARNESS CONN FROM B/U ORN IGNITION FUEL PUMP. 450 Hi i n V 6 c = r EB - G E ] D FROM VSS TAN/WHT 39.8 PNK/BLK BLK/WHT Pi DK GRN/WHT TAN/WHT IB IDLE AIR CONTROL (L05) ENGINE BLK/WHT LT GRN/WHT LT BLU/BLK LT 8LU/WHT LT GRN/BLK TAN/WHT is a E i m, (EI E) B (B IQ IB i m O GAUGE/IDLE 20 AMP -J CO * z CL TAN/WHT FUEL PUMP OIL PRESSURE SW ITCH FUSE BLOCK SPLICE TAN/WHT ORN ORN FUEL PUMP PRIME RED FROM EVRV SOL BLK/WHT ENGINE TO l/p CLUSTER - CONN l/p TAN/WHT RED ENGINE / i fw.! iwrm FUEL PUMP RELAY DK GRN/WHT TAN/WHT BLK/WHT FUEL CONTROL & IDLE AIR C O N TR O L L 0 5, L V 8 SECTION D-PAGE ORN.0 ORN,0 TAN/WHT TO AUTO TRANS KICKDOWN SOLENOID (M40) ELECTRIC FUEL METER/PUMP TANK UNIT L05/L

277 FRAME SHEET METAL -J CO CO FROM RH HEAD(S) PARK & DIR SIGNAL S BLK A U X FAN COOLING SW DUAL HEADS ONLY (RPOV22) C 2 [Vir f9 3 5 h I 39 y 2 j BLK/RED DK GRN PNK/BLK RED AU XILIARY COOLING FAN RELAY BLK/RED BLK----- AUXILIAR Y COOLING FAN O s1 ) ui CC 2. 8 RED THERMO HW - 0SPLICE LE JUNCTION BLOCK A U X ILIA R Y C O O LA N T FAN L 1 9 /L E 8 & C 6 0 SECTION D-PAGE 35

278 l/p ENGINE I«3L21jL2»jQ D C ID Q I] IS I 14 I I L ^ J r «2 2 I 3«. Ir " PNK - EDjicS m p [TsjUQF] 0 D n E 3 H R 39 I U U 3 7 I n Q 3 tea q d U q e i TO INSTRUMENT CLUSTER(S) SEE PAGE D FRAME BLU OR PPL OR LT GRIM - RIGHT TANK AUXILIARY G CO PNK PNK z & CO CO GROMMET A LT GRN 54-8 DK GRN - FUEL TANK SELECTOR SW ITCH UH^ r * < <T ^ ISO riqmt^l 150 JE3. L@@J eet SPLICE 54 Z cc * cc SPLICE DK GRN LT GRN - i < r N c PNK/BLK " LEFT x * cr 3 ~ RIGHT A. *7 VALVE FUEL TANK SELECTOR VALVE & METER SWITCH PNK/WHT DK GRN LT GRN PNK- Ej BUS BAR ID DO A U X ILIA R Y FUEL T A N K (RPO NL2) L H 6 -L L 4 -L T 9 -L E 8 -L 2 5 FUEL T A N K SELECTOR SW ITCH SECTION D-PAGE 36 P r fl I *0 I [^5*1 FRONT FUSE BLOCK REAR E IE ID FRAME BLU OR PPL OR LT GRN - LEFT TANK (PRODUCTION)

279 * -i m IE 3 P S ' n I ELECTRIC FUEL PUMP ASSEMBLY (AUXILIARY RIGHT SIDE) GRA PNK/BLK TO BULKHEAD CONNECTOR FOR CONTINUATION OF WIRING, SEE FUEL CONTROL & IDLE AIR CONTROL PAGE L. L P N K TAN/WHT FUEL TANK SELECTOR SW ITCH -EEL TAN GRA TAN/WHT GROMMET TAN/WHT NLJ GRA TAN SPLICE < CC O O SPLICE 921 / 4 C GRA TAN PNK/WHT PNK PNK/BLK *1 : m FUEL TANK SELECTOR VALVE & METER SW ITCH LEFT, O r ' 3 RIGHT P 9 i VALVE < I- 6 (M 0) BUS ELECTRIC FUEL PUMP (PRODUCTION LEFT SIDE) TAN PNK/WHT A U X ILIA R Y FUEL T A N K (RPO N L2) L 0 5 -L 1 9 FUEL T A N K SELECTOR SW ITC H SECTION D-PAGE 37

280 RIGHT-HAND AIR DIVERT SOLENOID REAR SIDE 0 3 ENGINE E YEL PNK/BLK. SPLICE 39 l/p SPLICE PNK/BLK - ENGINE D YEL PNK/BLK - AIR CONTROLLER A IR D IV E R T S O L E N O ID IG N IT IO N S W IT C H G R O U N D T A C H O M E T E R T O C O IL C H E C K ENG IN E L A M P A IR S W IT C H S O LE N O ID PNK/BLK BLK SPLICE l 3 1 p r p s i l H r ^ l E g i 2 i r r i r r i a ^ H ft I I ] r BRN/WHT BRN/WHT V / DISTRIBUTOR CONNECTOR td WHT > z AIR CLEANER TEMP SWITCH ^36} 9 00 LEFT-HAND AIR DIVERT SOLENOID FUSE BLOCK YEL PNK/BLK - EMISSION CONTROLS - L T 9 SECTION D-PAGE BLK- ANTI DIESEL SOLENOID (M AN TRANS ONLY)

281 RIGHT-HAND AIR DIVERT SOLENOID ENGINE 4 GRD STRAP- ( 3 ENGINE TO BODY GRD YEL PN K/BLK. l/p PNK/BLK- ENGINE a YEL PNK/BLK - AIR CONTROLLER AIR DIVERT SOLENOIO IGNITION SWITCH TACHOMETER TO COIL. CHECK ENGINE. AIR SWITCH SOLENOID n: PNK/BLK BLK BRN/WHT. SPLICE BRN/W H T- Q3QDQDQDGZ1C1I ia a B L / TO CHECK ENGINE DISTRIBUTOR CONNECTOR 0 td W H T > AIR CLEANER TEMP SWITCH m FRONT FUSE BLOCK IDLE STOP SOLENOID PNK/BLK - EMISSION CONTROLS-L25 SECTION D-PAGE 39

282 SECTION D-PAGE 40

283 RIGHT HAND AIR DIVERT SOLENOID ENGINE ENGINE TO BODY 4 GRD STRAP ) l/p 39.8 PNK/BLK AIR DIVERTER SYSTEM RELAY DIRECT CHECK ENGINE IGNITION SWITCH BRN/WHT YEL TAN BLK 39-8 PNK/BLK AIR DIVERTER MODULE IGNITION DIRECT TACHOMETER TO COIL AIR SWITCH SOLENOID WHT TAN BRN/WHT BRN DISTRIBUTOR CONNECTOR E WHT AIR CLEANER TEMPERATURE SWITCH LEFT HAND AIR DIVERT SOLENOID 900 ) BRN YEL A N TI DIESEL SOLENOID MAN TRANS ONLY EMISSION CONTROLS LE8 SECTION D-PAGE 41

284 THROTTLE POSITION SENSOR COOLANT TEMP SENSOR L05 ONLY OXYGEN SENSOR ELECTRONIC CO NTROL M O D U L E -IN P U T S L 0 5, L 1 9 -V 8 SECTION D-PAGE 42

285 PNK/BLK PNK/BLK - ELECTRONIC CONTROL M O D U L E -IN P U T S L 0 5, L V 8 SECTION D-PAGE 43

286

287 TO ECM ELECTRONIC CONTROL MODULE-OUTPUTS L05, L19-V8 SECTION D-PAGE 45

288 SECTION D-PAGE 46

289 CIRCUIT NO. WIRE SIZE COLOR CAVITY DESCRIPTION CIRCUIT NO. WIRE SIZE COLOR CAVITY DESCRIPTION DK GRN/WHT A1 FUEL PUMP RELAY DRIVE A2 NOT USED A3 NOT USED GRA A4 EGR SOLENOID BRN/WHT A5 SYSTEM CHECK PNK/BLK A6 12V IGNITION FUSED * TAN/BLK A7 TORQUE CONVERTER CLUTCH ORN A8 SERIAL DATA WHT/BLK A9 ASS Y LINE DIAG./LINK BRN A 10 SPEED SENSOR BLK A1 1 5V RETURN B BLK/WHT A12 SYSTEM RETURN ORN B1 12V BATTERY FUSED TAN/WHT B2 ELEC FUEL PUMP FUSED FEED BLK/RED B3 DISTRIBUTOR REF LOW B4 NOT USED PPL/WHT B5 DISTRIBUTOR REF HIGH B6 NOT USED BLK B7 SPARK RETARD CONTROL 59.8 DK GRN B8 AIR CONDITION B9 NOT USED * ORN/BLK B10 PARK/NEUTRAL SWITCH B11 NOT USED B12 NOT USED * AUTO TRANS ONLY L05 ONLY C1 NOT USED BRN C2 AIR SWITCH SOLENOID LT GRN/BLK C3 STEPPER COIL B LOW LT GRN/WHT C4 STEPPER COIL B HIGH LT BLU/WHT C5 STEPPER COIL A HIGH LT BLU/BLK C6 STEPPER COIL A LOW * LT BLU C7 A/C CONTROL (4TH GEAR DISCRETE) C8 NOT USED PPL/WHT C9 CRANK DISCRETE FUSED YEL C10 COOLANT TEMPERATURE LT GRN C 11 MANIFOLD ABSOLUTE PRESS. C12 NOT USED DK BLU C13 THROTTLE POSITION SENSOR GRA C14 5V SENSOR REFERENCE C15 NOT USED ORN C16 12V BATTERY FUSED TAN/W HT D1 SYSTEM PPL D2 5V RETURN A D3 NOT USED WHT D4 HEI SPARK TIMING TAN/BLK D5 HEI BYPASS TAN D6 OXYGEN SENSOR LOW PPL D7 OXYGEN SENSOR HIGH D8 NOT USED D9 NOT USED D10 NOT USED D 1 1 NOT USED D12 NOT USED D13 NOT USED LT GRN D14 INJECTOR B DRIVE D15 NOT USED LT BLU D16 INJECTOR A DRIVE * AUTO TRANS ONLY L05 ONLY ELECTRONIC CONTROL MODULE L05, L 1 9 -V 8 TBI SECTION D-PAGE 47

290 CIRCUIT NO. WIRE SIZE COLOR CAVITY DESCRIPTION CIRCUIT NO. WIRE SIZE COLOR CAVITY DESCRIPTION LT GRN A1 MANIFOLD ABSOLUTE PRESS DK BLU A2 THROTTLE POSITION SWITCH YEL A3 COOLANT TEMP. SENSOR A4 NOT USED A5 NOT USED WHT/BLK A6 ASS Y LINE DIAG./LINK A7 NOT USED WHT A8 ENGINE SPEED SENSOR BRN A9 VEHICLE SPEED SENSOR LT GRN A 10 ASS Y LINE DIAG./LINK A1 1 NOT USED GRA A 12 THROTTLE POSITION SWITCH & MANIFOLD ABSOLUTE PRESS. B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED BLK C1 SYSTEM RETURN BLK C2 SYSTEM C3 NOT USED C4 NOT USED * TAN/BLK C5 TORQUE CONVERTER CLUTCH BRN C6 COLD ADVANCE/GLOW PLUG INHIBIT RELAY C7 NOT USED C8 NOT USED C9 NOT USED GRA C IO EGR DIAGNOSTIC CONNECTOR LT BLU C1 1 EGR SOLENOID DK GRN C12 EPR SOLENOID C13 NOT USED PNK/BLK C14 12V IGNITION FUSED C15 NOT USED ORN C16 12V BATTERY FUSED D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D1 1 D12 D13 D14 D15 D16 NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED * AUTO TRANS ONLY ELECTRONIC CONTROL MODULE LH6 DIESEL SECTION D-PAGE 48

291 ENGINE SPEED SENSOR THROTTLE POSITION SENSOR BLK BLK ELECTRONIC CONTROL MODULE-INPUTS LH6 DIESEL SECTION D-PAGE 49

292 COLD ADVANCE GLOW PLUG INHIBIT RELAY COLD ADVANCE CONTROL CIH LT GRN/BLK ENGINE GRD BLK - EGR DUMP / 39 T \ DK GRN 39.8 PNK/BLK EGR VALVE 1C 'O ' GRA 39.8 PNK/BLK EPR VALVE 39.8 PNK/BLK DK GRN SPLICE 39 FAST IDLE TEMP SWITCH B TS C l! ELECTRONIC CONTROL MODULE LH6 DIESEL SECTION D-PAGE 50 OUTPUTS LT GRN/BLK STR BLK-

293 TO ECM BLK CHECK ENG DRIVER CONNECTOR ELECTRONIC CONTROL M ODULE-OUTPUTS LH6 DIESEL SECTION D-PAGE 51

294 TAN/BLK LT BLU _JL rj L J BBS STOP SWITCH (MD8 ONLY) 3 ffi TRANSMISSION CONVERTER CLUTCH SOLENOID BO fo 4» *46 ELECTRONIC CONTROL MODULE CONNECTORS N M * «V fl f E O C B A 1 <0 n * l + O 10 * G H J K L m A.L.D.L PPL TAN/BLK BD 63 BI B 0 83 OD «g» IE) S3 E l 13 B (5 ID S I *" O B3 S I IS G9 ID OS ID ATT ION ACC im mu c<uw? wsm? i TRANSMISSION CONVERTER CLUTCH DETENT SOLENOID (L05 ONLY) SECTION D-PAGE 52 FRONT FUSE BLOCK REAR

295 TRANSMISSION KICKDOWN SOLENOID L05/L19 ONLY LOS ONLY TAN/BLK - TO ALDL IL0 5 ONLY) l/p TAN/BLK TO ECM SEE PAGE SPLICE ORN TAN/BLK ENGINE TAN/BLK. 'L 1 9 ONLY 39.8 PNK/BLK H ^ B» 3 l «n r i r I f f J KICKDOWN RELAY L05/L19 ONLY PNK/BLK PNK/BLK - * m * 2 < 2 * c H 2 00 «00 < <N fl ID N A t SPLICE 39 LL4 ONLY KICKDOWN SWITCH LL4 DIESEL ONLY TO FUEL HEATER TO COLD ADVANCE & FAST IDLE TEMP SWITCH TO WATER IN FUEL SENSOR -OL LL4 DIESEL ONLY MTM s S3 S3 9 ffi E "*** GEJ El 13 El H (D S3 S3 < q> 0 a a si is e att igm «cc cm rtm s h u m 7 * h u «? ^ L r - n J L_i i_ j TO l/p CLUSTER CONNECTOR TO CONVENIENCE CENTER TO HOT FUEL HANDLING MODULE (IF EQUIPPED) LE8, LT9 ONLY TRANSMISSION KICKDOWN SOLENOID FOR L14 DIESEL ONLY LL4 ONLY L ORN LL4 ONLY *- i CO 2 z FUSE BLOCK A 1 3 S 3, C 3 REAR TRANSMISSION KICKDOWN SOLENOID KiCKDOWN SWITCH FOR LE8. LT9 ONLY FOR LE8, LT8 ONLY LE8. LT9 ONLY I I ORN ORN GROMMET L, PNK/BLK.J LE8, LT9 ONLY AUTOMATIC TRANSMISSION KICKDOWN SOLENOID (M 40) SECTION D-PAGE 53

296 GRO UND BLOWER S W ITC H DIODE (NOT USED WITH LE8.LT9.L25, ^ CAPAC AIR CONDITIONING (RPO C60) SECTION D-PAGE 54 JU N C TIO N BLOCK

297 BLOWER S W IT C H c u> Y EL ORN \J ORN- SPLICE PPL RESISTOR GROMMET BLK- z cc m i REAR BLOWER MOTOR r-polllsj I IB- 03 &) IS B IS IE) CD E ts E) a B (B E) E J "00 O] B (SI H 03 OD B3 (B ATT MM SmuiS? Cm<7 AUX HTR A/C 25 AMP FUSE BLOCK f c S E S C J a - a REAR REAR AIR CONDITIONING (RPO C 69) SECTION D-PAGE 55

298 RESISTOR BLOWER MOTOR m E U n D L l E d l GROMMET ORN YEL ORN LT BLU YEL ORN LT BLU BRN H BRN 0 E a ux MT* IE) 11 WOO 0 ID ffl E E tcn ACC LPS WW K t i iir wwp»cc RsiG m. ICM «PWRWDO W M K [ ] fa CAANK CMOKC'fUtL f FRONT FUSE BLOCK HEATER SECTION D-PAGE 56

299 BLOWER SWITCH I? YEL DK GRN- GROMMET \ GROMMET A * Z CC X a RESISTOR BUS BAR in i 1180 j th t O) O 83 IB O ID BRN * LH/ \ r 83 B IS IB ffl ID NW is a ii t nrv mm Me im m m Shun? S S S? \m AUX HTR A/C 25 AMP BLOWER MOTOR E S 153 > 0 C=J FUSE BLOCK M A R AUXILIARY HEATER (RPO C 36) SECTION D-PAGE 57

300 SECTION D-PAGE 58

301 HEATER A/C CONTROL ASSEMBLY ILLUM ILLUM ILLUM ILLUM ILLUM w/ l/p CIRCUIT ROUTING WITH TACHOMETER W/O-l/P CIRCUIT ROUTING WITHOUT TACHOMETER BUS BAR UZ, FRONT FUSE BLOCK INSTRUMENT PANEL S SECTION D-PAGE 59

302 COOLANT TEMP SENDER L DK GRIM METAL TEMP SW ITCH L25 E GS 0 E OS E E i B 09 1 IS < O E (B IB IS E KM ACC LM ShuS? DK GRIM PNK/BLK COOLANT TEMP SENDER L05, L19. LT9, LE8, LH6. LL DK GRN - LT9. LE DK GRN LH6, LL4 L05. L19 FRONT FUSE BLOCK CS 89 ) C 3 EkB [ REAR TO HOT FUEL HANDLING MODULE {L05, L19) DIESEL ONLY TO HOT FUEL HANDLING MODULE (L05. LI 9) TO CONVENIENCE CENTER OIL PRESSURE SENDER L TAN 2 tr Z 10 k 2. 5* 00 ^ < t O ' O IU Q _J 00 r t l O OIL PRESSURE SENDER L19, L25, LE8, LT9, LH6, LL TAN- TO SPLICE 39 L25, LE8, LT9, LH6, LL PNK TAN/WHT WITHOUT TACHOMETER WITH TACHOMETER TAN WITH TACHOMETER PNK DK GRN FUEL TANK SENDER L25, LE8, LT9, LH6 & LL PNK TO SPLICE 120 L05, L PNK WITHOUT TACHOMETER TO AUTO TRANS KICKDOWN TRANS KICKDOWN SOLENOID (M40) L 0 5, L19 L25, LE8, LT9, LH6, LL4 INSTRUMENT PANEL GAGES SECTION D PAGE 60

303 ILLUM ILLUM ILLUM ILLUM ILLUM l/p CIRCUIT ROUTING WITH TACHOMETER ELECTRIC FUEL METER/PUMP TANK UNIT L05/L19 INSTRUMENT PANEL GAGES SECTION D-PAGE 61

304 A 8 80S NUO 8 -E0S Xlfl/XNd S -6E- i h m /n v i s -e e - i h m /n v i s -ee- -J.HM/NU * A 8 EZ m a x a s - s i m a n s - n - 8*1*0021 B -1HM /N V1 S EE -1H M /N V1 S E E NUO SOI (0«IAI) CJI0N310S NMOOXOIX SNVH1 i n v i 611 '901 Z9 3 0 V d - a N0I1D3S SdlAIVl ao lvoiqni usn3s land Nl H31VM 01 aanuinod S AV13U Oflld M M S 1 V N D IS 1 V N 0 lld 3 b ia LV IfrOOZl 1 a 6S I i 08 8Z 8 Z Pi H PI II X LI * LZ 9L M N )... I I d 1 I JL_ -»ia/>in d S -6E 1 T r~ 1 T -M ia 8 - s i- >na 8 -s i r* VdO (13S3IO 9H1I a in a i/ v 3 A iu a dl/uvl 3 N ID N 3 X D 3H 0 r+i h -X ia/x N d S -6E -»18/MNd 8 6E -X ia/x N d 8 6E ^ (( l55»h5sy 88»il6e?ll^i) -> SI x. r r l I t- z z i Jlia/MNd 8-6EJ I CD r* * I 00 G> 30 > 1 00 * -M ia 8 - s i L»9686Z L I I! I 9 0 t0 0 Z L Ji a a u d in v i a i a in a w i n v i i 13S3IO fr l l *9H1 3 in a ia i D N IH 0 1 IM S 1 N V MOT 9H1 dlaivi 3N IO N 3 XD3HO IAI33 01

305 ILLUM (0) < 0 w / ILLUM z S \ \ 150 / \ l 1 5 j / \ 150 J y 150 y \ 150 / l/p CIRCUIT ROUTING WITH TACHOMETER W/O l/p CIRCUIT ROUTING WITHOUT TACHOMETER CHECK ENGINE a BRAKE 0 rxj---- La S p l 3"Q E I Q D f a QTjUElIl Q H l n Q i ] C D l l l H ] * t _ ~ L I ONLY j I I W/O 18 D D p 3 Q n C E i E g u Q g DnEiS r^ H iuhr^ i DEDnQD r f n i ] Q D f e TO RH TURN TO LH TURN TAN/WHT - I l s i l l 15l i n 3 BAT 1 BAT 2 11 b a t 3 m m l i r a GRD 1 Q O ) IlGW 1 ACC _ ' 13 i r m ] I p r 2 n r i DIMMER SWITCH! I n T j 4 A u> 12« * i IGNITION SWITCH & INDICATOR S SECTION D - PAGE 63

306 -39.8 PNK/BLK L H 6 O N L Y SEAT BELT RETRACTOR SWITCH B L K /W H T B L K A LL EXCEPT LHG FR O M G LO W ** PLU G S L A M P FROM LOW COO LANT W A R N ING M O D U LE FR O M C H E C K ENG IN E L A M P D R IV ER (LH 6) D IES EL O N L Y F R O M l/p < C LU S T E R C O N N E C T O R FR O M W /S W IPER W A S H E R S W SEAT BELT WARNING BUZZER SECTION D -P A G E 64 SECTION D-PAGE 64

307 w TAN/WHT l/p Tsi 1 - I [ lg N 3 1 BA1 2 B * T 3 ] m [ m grd i r m 1 A C C ] i m J I GRDi f* IGNITION SWITCH % PARK BRAKE WARNING SWITCH u. BRAKE PRESSURE WARNING i SWITCH BRAKE WARNING SYSTEM SECTION D-PAGE 65

308 TRANSFER CASE SWITCH BLK W HT- cc O 4-WD INDICATOR X BRN/WHT BLK BLK- BUS BAR BRN/WHT h F' P I E) 0 gg i (S I «*«IE (3 3) H SI ffil E I < 1 s s a i wrm SHUNT ("ja] (IaI n?*] [is*l k m Bsd SO aut 'htrt c FRONT FUSE BLOCK < OC 00 REAR V100, BLK BLK- 4-WD SHIFT LEVER WD INDICATOR BRN/WHT - tl OC O BLK 4 - HTN S (3 G3 ll] IB dj «** s) is a a s i m e 0 isi ffl E E BATT a c c ip * ram S h u n? >s s~skim B I t l w M l Acc S f i. > RADIO < r 15 AMP WHT TRANSFER CASE SWITCH FRONT FUSE BLOCK 5 9 ) [ X I E k S REAR FOUR-WHEEL DRIVE INDICATOR SECTION D-PAGE 66 V300

309 CRUISE CONTROL MODULE 403 CRUISE VENT VALVE 402 CRUISE CONTROL VAC 400 SPEED SENSOR 399 CRUISE SERVO 398 _ CRUISE SERVO 397 ELECTRONIC CRUISE 150 _ 87 BRAKE SW. 84 CRUISE ENGAGER SW. 83 CRUISE ENGAGER SW. CRUISE CONTROL ACTIVATOR CONTACTS CLOSED WITH FOOT PEDAL AT REST AUTOMATIC TRANS ONLY BRAKE SW V GBA CRUISE CONTROL (RPO K34) W/P UD4 SECTION D-PAGE 67

310 RIGHT HAND DOOR JAMB GROf l/imet a n a - 1 m RIGHT REAR DOOR JAMB SWITCH I1 06 MODEL ONLY HEAD SWITCH LEFT HAND DOOR JAMB SWITCH DOME S SECTION D-PAGE 68

311 CARGO SWITCH 4 3 & 03 MODELS ORN 140 H ORN CARGO 4 3 & 03 MODELS WHT TO COURTESY & FRONT DOOR JAMB SWITCHES SEE DOME S ORN JS=1 m I CD G9 S ID ffl ID g* X S I B B B O B ID B 15 8 B B ID Mn «*MUN? CtUM? WHT WHT WHT TO REAR DOOR JAMB SWITCHES m ORN a ORN TO DOME S ORN (43 MODEL ONLY) (03 MODEL ONLY) FOR CONTINUATION OF WIRING. SEE DOME S FUSE BLOCK CARGO (RPO UF2) SECTION D-PAGE 69

312 TO ROOF MARKER LPS (RPO 401) BRN 9.8 BRN 40.8 ORN UM6 ONLY I t I 0 ^ 0 P A R K A OFF S H E A D 5" P A R K O OFF r RIGHT FRONT SPEAKER DIGITAL CLOCK CONN. w RIGHT REAR SPEAKER ANTENNA n L - X 1 J z cc O 00 HEAD SWITCH i/p CLUSTER > ~ CONN., CONV. CENTER HEATER/A/C SPLICE DK BLU LT BLU YEL BRN TAN GRA DK GRN LT GRN G R A YEL C T *0 SO * " H B so 10 M 0 0" a- C E -0 D SQ yq"p REAR SPEAKERS FRONT SPEAKERS RADIO POWER D CD CO IT) DJ CO 00 < > B B H IB II B B B B B IB b b a ib b i m ATT ihum? r - v J tm SHUN? >_i t _ i ACC l f «P M NTS IB > ^ O m FROM WIPER/ WASHER SW FROM SEAT > - BELT SW SPLICE BLK 46.8 DK BLU LT BLU BRN YEL RADIO RECEIVER DK BLU LT BLU BRN YEL GROMMET FRONT a Iz J 1 B FUSE BLOCK RADIO EQUIPMENT (RPO UM 6, UP8) SECTION D-PAGE 70 REAR nzj E E BLK. 3 J BUS BAR ID 3) LEFT FRONT SPEAKER LEFT REAR SPEAKER

313 FRONT SPEAKER B < c l/p CLUSTER - CONN a *eez j."«i 201 u J urr 0 0 H 0 (E * 0I [c] IS H IS HI IB " O 0 0 a s a 0 e ATT SH UN T 20a " MSN ACC AWN SH U N T 5A 3 0 A mrer I M 1 S J S i s i d D ^ IK! K 3 ) CXI RADIO RECEIVER FRONT FUSE BLOCK REAR BLK. bus BAR RADIO EQUIPMENT (RPO U 63) SECTION D-PAGE 71

314 TO RH DOOR LOCK SWITCH ' TO DOOR LOCK RELAY If 194lh9Ml [ j TO SPLICE 60 (POWER DOOR LOCKS) /TH GROMMET TAN DK BLU/WHT PNK RIGHT HAND WINDOW SWITCH f t) DK BLU BRN I ( circuit 1 2 I BREAKER I = S q h J RIGHT HAND WINDOW MOTOR Q O 2 < N PNK SPLICE BLK H i I 1 IB I si sa is a IB b m r«_j EJ S) D 9 B 1 IS) IE MO Q IS IS IS O O IB I mtt am mc hi mm L/ U i_r-u SuC? rwn yttv j I *- -1 j HP. FRONT FUSE BLOCK 'ca E S 153 > ^ REAR TO DOOR LOCK RELAY TO LH DOOR LOCK MOTOR I 1295] 234* * - j a r /TUI PNK POWER WINDOWS (RPO A31) 2-DOOR SECTION D-PAGE ]Q] BUS BAR Vul GROMMET TAN DK BLU/WHT BLK LEFT HAND WINDOW SWITCH W - V DOWN M l UP I DOWN I UP LH LEFT HAND WINDOW MOTOR

315 GROMMET iuv GROMMET DK BLU BRN RIGHT REAR WINDOW MOTOR RIGHT REAR WINDOW SWITCH DK BLU- I [ c ir c u it J p J g g J I BRN- LEFT REAR WINDOW MOTOR FUSE BLOCK POWER WINDOWS (RPO A31) 4-DOOR SECTION D-PAGE 73

316 {bj g f f l - X FRAI FRAME GRN ORN BLK BLAZER ONLY BLK m s D MOTOR BRK GRN ORN/BLK LT BLU LT BLU CUT OUT SWITCH SPLICE LT BLU T A N LT BLU TAN/WHT- < I O O 3 CD H Z 5 z «K O n BLAZER ONLY I I - { { tun EHEJ - I TAIL GATE WINDOW MOTOR TAIL GATE WINDOW SWITCH (FRONT) SPLICE 184 < LT BLU TAN/WHT E TAN/W HT PNK LT BLU- E U BLAZER ONLY GROMMET z c TAIL GATE WINDOW SWITCH KEY OPERATED O O SI El IS G i l E El SI IS 8 OB SI E E) 0 H fi S3 fl) ^ Shun? ' J--L shw? -- * ^0A 20A I I 25A I f l i A E LT BLU ORN/BLk TAN/WHT I? 20*] nsut] ("ma] pwt ' t c m GAUQK lou W as T *AWO rig i i Bin rumbw mvawu «w» i R*] Qw] s e s E z s E 3 a/fi POWER REAR WINDOW (RPO A 33) SECTION D-PAGE 74 FRONT FUSE BLOCK REAR

317 8.8 GRA REAR W INDOW DEFOGGER SW ITCH ORN/BLK GROMMET TIMER RELAY BLK JUMPER PNK/BLK BLK SC m BUS BAR is et eq s e ib d ««E El Cl (5 a (S IS (0 < -l q 'V El (S 3 IB IB IE IB ATT KM ACC LPt WHK t S ) PROMT FUSE BLOCK REAR REAR DEFOGGER (RPO C49) SECTION D-PAGE 75

318 DOOR LOCK RELAY : GRA TAN ORN/BLK GRA TAN- /THl GRA TAN RIGHT HAND DOOR LOCK MOTOR POWER WINDOWS ORN/BLK LT BLU ORN/BLK LT BLU J S ORN/BLK BLK/WHT- > u t i GROMMET UNLOCK LOCK BLK/WHT- RH DOOR LOCK SWITCH LT BLU BLK/WHT '1 d l 9 4 l E j ORN/BLK SPLICE 60 POWER WINDOWS ORN/BLK LT BLU BLK/WHT - POWER WINDOWS m UNLOCK DOOR LOCK SWITCH S LOCK i f l r TAN E E BLK GRA TAN ORN/BLK ORN/BLK LT BLU LT BLU FUSE BLOCK POWER WINDOWS BLK/WHT BLK/WHT GRA TAN- LEFT HAND DOOR LOCK MOTOR POWER DOOR LOCKS (RPO AU3) 2-DOOR SECTION D-PAGE 76 *-j t P5 L_i DZ E E 3 1 BUS BAR r ZD GROMMET

319 RIGHT REAR DOOR LOCK MOTOR A B C < F «e i i*. r* R 1e <D I I [ D 11 s I E TO BUS BAR INS GROMMET LEFT REAR DOOR LOCK MOTOR POWER DOOR LOCKS (RPO AU3) 4-DOOR SECTION D-PAGE 77

320 WINDSHIELD WIPER MOTOR s 09 0 ffl U GD «» 0 ffl a IS E) E i - O S S dj 1] 0 (CM ACC i n PWN S H U N? BLK- ~m bus BAR FRONT FUSE BLOCK WHT 9 K*l ) [X] frfl REAR 93.8 WHT- WIPER, WASHER SW. (COLUMN MOUNTED) OFF i - ~ \ \ " V j WASH T WIPE i ( < TO INST. CLUSTER CONN SPLICE 150 TO CONN. CENTER - < TO RADIO TO A/C HEATER LP TO SEAT BLTSW WIPER/WASHER SECTION D-PAGE 78

321 El (2 B i Q 1 HI (3 0 El (D ATT SH U N T S 3 K ) T I c»sv l T EZ q si si WOO a s mjh acc ire SH U N T rvi 3 0 A H ll T J f B RtAH A C 0 HBTTTO RaI pia] flial tn AI^MtTZcsTFMij pi] psih fiiil GAUGt KHf M ^ A X *ADfO ^ n ' r* - - I i 15A --...MMPCH C^3 3<> ] [ M ] e rf CCMt CHORE JSL L «FRONT FUSE BLOCK WHT t a B 3 ) BLK- TU BUS BAR 3D PULSE, WIPER, WASHER SW (COLUMN MOUNTED) Lj_^y2jj39_[«4j^ n PULSE WIPER/WASHER RPO CD4 SECTION D-PAGE 79

322 SECTION D-PAGE 80

323 E 19 H IS IQ ID «E S B 1 SI IS i «0 Q is a (B IB 00 HM ACC i n m m tmm) TRANSMISSION BACKUP SWITCH (AUTO TRANS) ONLY MANUAL ONLY SPLICE BLK- SHEET METAL -e < H n FROM RIGHT HAND TAIL. STOP. DIRECTIONAL & SIDE MARKER S FRONT FUSE BLOCK E ) [ X I f r f i REAR 75-8 DK BLU LT GRN DK BLU RIGHT HAND BACKUP 24.8 LT GRN LT GRN LT GRN IB M p " H l... (C i ^ J l II I 1 2 I s e l H ( p MANUAL ONLY c (N 3mX CO * GO in LEFT HAND BACKUP BACK-UP SWITCH 4-SPEED MAN. ONLY NEUT/FWD 1 REV LT GRN DK BLU SPLICE (16) (06) FROM LEFT HAND TAIL, STOP. DIRECTIONAL & SIDE MARKER S MANUAL ONLY GROMMET SHEET METAL BLK EQ gjhll BACK-UP L A M P S -16, 0 6 MODELS SECTION D-PAGE 81

324 BACKUP {PART OF RH TAIL, STOP AND DIR ASM) BACKUP (PART OF RH TAIL. STOP AND DIR ASM) LT GRN PART OF ASM ASM LT GRN LT GRN - m 24.8 LT GRN 24.8 LT GRN - SPLICE 24 TO BULKHEAD CONNECTOR FOR REMAINDER OF CIRCUIT SEE BACK-UP S MODELS * 4 * CM * t FRAME S ASM 7 TO BULKHEAD CONNECTOR FOR REMAINDER OF CIRCUIT SEE BACK-UP S MODELS M M c (9 OS :» ) 24.8 LT GRN PART OF ASM LT GRN PART OF ASM LT GRN BACKUP (PART OF LH TAIL STOP AND DIR ASM) BACKUP (PART OF LH TAIL STOP AND DIR ASM) 03 & 43 MODELS W/O RPO E62, E63 STEPSIDE PICKUP. RPO E62 BACK-UP S SECTION D - PAGE 82

325 FROM R.H. SIDE MARKER FROM R.H. TAIL. STOP & DIRECTIONAL SIGNAL FROM R.H. SIDE BLK LT GRN FROM END GATE «IDENTIFICATION S RIGHT HAND BACKUP TO BULKHEAD CONNECTOR FOR REMAINDER OF CIRCUIT SEE BACK-UP S MODELS TO BULKHEAD CONNECTOR FOR REMAINDER OF CIRCUIT SEE BACK UP LA M P S MODELS LEFT HAND BACKUP ISO.8 BLK 24.8 LT GRN FROM L.H. TAIL. STOP & DIRECTIONAL SIGNAL FROM L.H. SIDE MARKER BLK e O H i ' FLEETSIDE PICKUP-RPO E63 SHEET METAL WIDE SIDE PICKUP-RPO R05 SHEET METAL BACKUP S SECTION D-PAGE 83

326 R.H. SIDE MARKER SUBURBAN ONLY HEAD SWITCH l R.H. TAIL, STOP & DIRECTIONAL X E D 9.8 BRN- SHEET METAL GRN SPLICE BLK BACKUP SPLICE 150 LICENSE Le fir 00 n N -fj [ l «M ^ " L±Jr r J 440 r 9-8 BRN- z cc m SPLICE BACKUP BLK GO (c) E 03 [c] BATT s a si 0 w S H E IGN ACC IPS SHUNT r v HI E... 0 B m ORN- 9.8 BRN- SHEET METAL GRN SPLICE BLK 9.8 BRN L.H. TAIL, STOP & DIRECTIONAL L.H. SIDE MARKER TAIL S UTILITY, SUBURBAN SECTION D-PAGE 84 FRONT FUSE BLOCK E I 6 9 D 3 f r a REAR

327 R.H. SIDE MARKER HEAD SW ITCH R.H. TAIL STOP & DIRECTIONAL SHEET METAL BLK -9.8 BRN BLKn L BACK UP SPLICE 150 LICENSE (S) I Il4>tj * 31 I fl I i * i ^ i r * « I f BRN 1201S 024 SPLICE 9 IDENT. < S d) SPLICE ORN 83 CDIS B IS El 00 S) S3 GS B IS SB IE El SI 09 IB QB ID OD A tr tm a c c m pm Shum? shum? Pm-! I * MT1 IS M AI cr L.H. TAIL, STOP & DIRECTIONAL L.H. SIDE MARKER FRONT FUSE BLOCK REAR TAIL S FLEETSIDE (E63) WIDESIDE (R05) SECTION D-PAGE 85

328 HEAD SWITCH RIGHT HAND 1 SIDE MARKER 9.8 BRN- x BACK UP 5 O I l«ii * ^ BRN / ^ BRN SPLICE 9 LICENSE S LEFT HAND ORN IS SI E *»* S B w G9 S SJ ID g] «M» ACC f W S H U N? ED i O 9.8 BRN- BACK UP [Ml K ON] i... _ f l a T I p w ] p 5 * l SIDE MARKER TAIL S STEPSIDE PICKUP (E62) SECTION D-PAGE 86 ia ik h /ici hg av t C w EtQm/V J UMrNAM D G wn«jr? Jstl list C C «I CHOKI S? (jt] C3 9 FRONT FUSE BLOCK REAR

329 HEAD SWITCH R.H. TAIL, STOP & DIRECTIONAL «12 11 M «J ~ BRN l c=:p r g t ORN 13 (3 IS IS 0 0 (51 Q 00 WOO 0 0 (3 (S ATT IQM ACC LP* ru-n n p n SH U N T SH U N T SA LJ_U wriw (B3JS. - drm'hr s TwITvB d t CH] [M] ECMI CMOKI FUSE BLOCK 1 *1 S 3 ) DX] j REAR DIRECTIONAL TAIL S EXTENDED CAB PICKUP SECTION D-PAGE 87

330 R.H. SIDE MARKER SUBURBAN ONLY HEAD SWITCH R.H. TAIL, STOP & DIRECTIONAL r - ^ 5 : PARK O F f 0 & H E A D PARK O OFF O P L- x i l/p I 15 I 14 I I 23 I, \ 9.8 BRN- S I L _ T l J [ «3 9 [ S J «2 «0 6 i p ~* g] 0 a e i ) h i "»«[cj a a a e 0 g) a il ATT lom ACC IPS n w * r-1 p r-t SH U N T 5A LJ-,J WTTW 3 0 A l rssri rssjn pbn X3N A tk u m h rc st f h [ f i ] cpg [ J t GAUOC (OiC HIM AC *AO*0 L.H. SIDE MARKER I SUBURBAN ONLY L.H. TAIL, STOP & DIRECTIONAL LICENSE UTILITY, SUBURBAN SECTION D-PAGE 88 FRONT FUSE BLOCK REAR

331 R.H. SIDE MARKER HEAD SW ITCH R.H. TAIL STOP & DIRECTIONAL 5 RIGHT HAND CLEARANCE S (RPO R05) * 9 T Z CC fld CD 9> I12 n 91 M» «1 i ~ i L^Jl ] VIJ « y v BRN (3 0 (S 0 E 0 e a WOO a a 0 tatt >Gfc ACC k.ps n n n p n SHUNT SHUNT 5A u-r_lj jsttw [Ml (glm Gsd S c Sa n c r» v cauqc tte FUSE BLOCK REAR ORN. L.H. SIDE MARKER L.H. TAIL, STOP & DIRECTIONAL LICENSE FLEETSIDE (E63) WIDESIDE (R05) SECTION D-PAGE 89

332 RIGHT HAND HEAD SWITCH SIDE MARKER 9 8 BRN- X BACK UP LICENSE :» ) J. s ) C ~ ) ^ X Z Z H ) I l l» M ~ L r i J i 439(4201! v \ J I ' H r 9 8 BRN j I t BRN (18 ) l[l8 " ) 8 B R N ^ K 9 SPLICE LICENSE i i s J r 9 J ORN- E 0 0 I 3 0 B ) (B «0 GOE) S) H (H SOE " O 0 ffl 0 IB IS ATT Kill ACC IfS PWH r«n rv r j SH U N T SH U N T Qa 30 A wrier LICENSE STEPSIDE PICKUP (E62) SECTION D-PAGE 90 fli" t c r li ffa^ ^20A^ - - I W l l g ] OAUOC/AU K] rumfcxr IJL twtwmt J *** [M] (M] ECM< CMOftC FRONT FUSE BLOCK ^ 3 E 3 ) [X 3 REAR

333 HEAD SWITCH R.H. TAIL, STOP & DIRECTIONAL [ i t l» l H r i m BRN z ec CD ORN E s s h si m E I 1 B " O,s OS 13 1) IS E 10«ACC LPt PW«shCw? CMJCXUMl TUMI/K mi w a a FRONT FUSE BLOCK ^ 9 E 3 ) [ X I B^B REAR DIRECTIONAL LICENSE S PICK-UP EXTENDED CAB PICKUP SECTION D-PAGE 91

334 JUNCTION BLOCK (W/O T P 2 -A U X BATTERY) TO TAIL, STOP DIR SIG. MARKER & BACKUP S JUNCTION BLOCK (W/O TP2-AUX BATTERY) TO TAIL, STOP DIR SIG, MARKER & BACKUP S 30 AMP FUSE 30 AMP FUSE BODY BODY DK B LU -A U X RED-POWER FEED RED-POWER FEED LT GRN BACK-UP LT GRN BACK-UP BRN TAIL & LICENSE BRN TAIL & LICENSE YEL-LH STOP & DIR SIG YEL-LH STOP & DIR SIG DK GRN RH STOP & DIR SIG DK GRN RH STOP & DIR SIG WHT WHT 30 AMP FUSE CAP BODY SPLICE AMP FUSE CAP BODY I JUNCTION BLOCK WITH T P 2 -A U X BATTERY FROM BULKHEAD CONNECTOR DK GRN LT GRN BRN Y E L I w JUNCTION BLOCK WITH T P 2 -A U X BATTERY FROM BULKHEAD CONNECTOR CAMPER & TRAILER WIRING SECTION D-PAGE 92 CAMPER EQUIPMENT-RPO UYI HEAVY DUTY TRAILER-RPO UY7

335 1988 P CHASSIS SECTION E PAGE DESCRIPTION PAGE DESCRIPTION 2 POWER DISTRIBUTION (6 CYL.) 25 EMISSION CONTROLS (6 CYL.) 3 POWER DISTRIBUTION (8 CYL.) 26 EMISSION CONTROLS (8 CYL.) 7 POWER DISTRIBUTION (DIESEL) 27 EMISSION CONTROLS (DIESEL) 8 FUSE BLOCK DETAILS 28 ENGINE CONTROLS (DIESEL) 10 HEAD S & PARKING S 29 GLOW PLUGS (DIESEL) 11 MARKER S 30 ELECTRONIC CONTROL MODULE (ECM)-INPUTS (8 CYL.) 12 HAZARD S 32 ELECTRONIC CONTROL MODULE (ECM)-OUTPUTS (8 CYL.) 13 DIRECTIONAL S 3 4 ECM CHART (8 CYL.) 14 HORNS 35 AUTO TRANSMISSION KICKDOWN SOLENOID (M4Q) 15 WIPER/WASHER 36 BRAKE WARNING SYSTEM 16 START/IGNITION (6 CYL.) 38 INSTRUMENT PANEL S 17 START/IGNITION (8 CYL.) 39 INSTRUMENT PANEL GAGES 19 START/IGNITION (DIESEL) 4 0 INDICATOR S 23 THROTTLE BODY INJECTION 42 BACKUP S 24 FUEL CONTROL & IDLE AIR CONTROL (8 CYL.) 43 TAIL S 4 4 LICENSE S INDEX SECTION E-PAGE 1

336 POWER DISTRIBUTION L25-6 CYL. BODY STYLE- 4 2 SECTION E-PAGE 2 FRONT FUSE BLOCK REAR

337 > 1 ~ y I S \ B *nrr>« ' - T - ip -3 2 BLK FUSE BLOCK REAR POWER DISTRIBUTION LE8 V-8 BODY S T Y L E -32 SECTION E - PAGE 3

338 POWER DISTRIBUTION LT9, V-8 BODY STYLE- 4 2 SECTION E - PAGE 4 FUSE BLOCK REAR

339 -3 2 BLK (BATT CABLE) FRONT FUSE BLOCK REAR POWER DISTRIBUTION L V 8 SECTION E-PAGE 5

340 < u I- STARTER MOTOR SOLENOID TO CLUTCH SWITCH (MAN TRANS) OR TO NEUTRAL START & BACK-UP SWITCH (AUTO TRANS) FUSIBLE SPLICE TO FUEL PUMP RELAY & FUEL PUMP OIL PRESSURE SENSOR & SWITCH 32 BLK (BATT CABLE) -3 2 BLK TO ECM. ESC EVRV & FUEL INJECTORS V TO AIR SWITCH & M 40 KICKDOWN RELAY SHEET METAL ENGINE POWER DISTRIBUTION P42 & L05 V-8 TBI DRIVE AWAY SECTION E-PAGE 6

341 ^ 5 3 * - ;! 3», NVv----- I ' \ \ 0 RED (P32) THERMO HW - RED-THERMO HW - INSTRUMENT PANEL "» n + - RIGHT HAND BATTERY r i n + - LEFT HAND BATTERY FUSE BLOCK REAR POWER DISTRIBUTION LL4 DIESEL SECTION E-PAGE 7

342 CAVITY " W " - CIRCUIT 50 IGN "ON" 25A FUSED FEED HTR & A/C CAVITY " I" CIRCUIT 3 9 ]- - CAVITY "A ' -CIRCUIT 141 \ IGN "ON & CRANK" 20A FUSED FEED - AUTO TRANS - DIESEL IND LP - BRK WARN LOW COOLANT IND/CHOKE LPS FUEL PUMP FEED CAVITY "B* -CIRCUIT 1 4p } BATTERY 15A FUSED FEED - CLOCK - CIGAR LTR - DR JAMB SW - DOME/CARGO LPS m 0 EJ- E E 0 w /s / w IG N -"O N & ACC" 10A FUSED FEED - RADIO CAVITY "L"-CIRCUIT 8 PANEL LPS-5A FUSED FEED - TILT WHEEL (32) - W/S/WIPER SW ILLUM (42) - TRANS IND LP - RADIO DIAL -j CAVITY " H " CIRCUIT 93 25A FUSED FEED W H T -W /S WIPERS BRN-HEATER & A/C BRN/WHT-IGN SW (ACC) m ts BATT n _ n 8HUNT IS A mn! ~i_r 20A t / l l t~ m HTR A /C m m IGN SHUN? 20A ION G D QAUOE ( J d s i CMI a E E S ACC LPS 'ba i n L J 10A Ia d ij 4 O [Ml PUMP! M ] K l CAANK - W/S/WIPER - W/S/WASHERS 8.5 G R A -l/p S DK GRN LIGHT SW ORN (F-PUMP SW FEED) RED BRN-IGN SW (ON/ ACC) (UNFUSED) ORN/BLK STR (ECM-BAT FEED) BRN-HEATER & A/C PPL (CRK SIGNAL TO ECM) 6.8 PPL PPL DIR SIGNAL SW 0 g S E S [ ] 0 Cl ORN DOME /HORN BRN/WHT-RADIO (ACC) PNK IGN SW (ON/CRANK) (UNFUSED) ORN-LT SW/TAIL LPS RED-LIGHT SW (UNFUSED) ORN-BATT/HAZ FLASHER 39.8 PNK/BLK INST CLSTR ("ON & CRANK") 38.8 DK BLU-DIRECTIONAL SIG/FLASHER FRONT FUSEBLOCK DIRECTIONAL SIGNAL FLASHER 38.8 DK BLU-TURN & B/U LPS DK BLU-B/U LP SWITCH REAR PNK/BLU STR (ECM IGN) BRN-IGN SW (ON/ACC)- COLOR MALE CONN I NAT A BRN B BLK L GRN P RED W BLU H DK GRA FUSES AMP COLOR TAN RED LT BLU YEL WHT VIOLET BROWN LT GRN W H T -W /S WIPERS- FUSE BLOCK (L05) SECTION E-PAGE 8

343 CAVITY "W' -C IR CU IT 50 IGN "O N " 25A FUSED FEED HTR & A/C CAVITY " I" CIRCUIT 39 CAVITY "A "-C IR C U IT 141 IGN "ON & CRANK" 20A FUSED FEED - AUTO TRANS - DIESEL IND LP - BRK WARN LOW COOLANT IND/CHOKE LPS FUEL PUMP FEED CAVITY "B "-C IR C U IT 140 BATTERY 1 5A FUSED FEED - CLOCK - CIGAR LTR - DR JAMB SW - DOME/CARGO LPS IS HTR A/C m e m m BATT IGN n n n n SHUNT l_ l---- L-l HORN/DM SHUNT L I I [ M ] IGN G S [ M ] T/L LPS GAUGE p 1» s n lj L-i n_l p s n STOP/HAZ TURN/BU ^ ^ 0 m t ] 0 W S/W ACC LPS K l INST LPS Q s g FRONT RADIO n r 25A 0 [ 2 «_ CHOKE 25A H I H FUSEBLOCK WIPER < C = 3 ' a IG N -" O N & A C C " 10A FUSED FEED - RADIO - CAVITY " L " - CIRCUIT 8 PANEL LPS-5A FUSED FEED - TILT WHEEL (32) - W/S/WIPER SW ILLUM (42) - TRANS IND LP - RADIO DIAL CAVITY " H " CIRCUIT 9 3 ] 25A FUSED FEED - W/S/WIPER - W/S/WASHERS DIRECTIONAL SIGNAL FLASHER WHT W/S WIPERS- 8.5 GRA l/p S DK G R N -LIG H T SW ITCH PNK/WKT TO BULKHEAD B R N -IG N SW (ON/ACC) (UNFUSED) B R N -IG N SW (ON/ACC) W H T W /S WIPERS BRN-HEATER & A/C PPL-D IR SIGNAL SW DK B LU -TURN & B/U LPS a n a REAR BRN-HEATER & A/C B RN/W H T-IG N SW (ACC) O R N -D O M E /HORN BRN/W HT-RADIO (ACC) P N K -IG N SW (ON/CRANK) (UNFUSED) O R N -L T SW/TAIL LPS RED -LIG HT SW (UNFUSED) O R N -B A TT/H A Z FLASHER 39.8 PNK/BLK INST CLSTR ("ON & CRANK") 38.8 DK BLU-DIRECTIONAL SIG/FLASHER COLOR MALE CONN I NAT A BRN B BLK L GRN P RED W BLU H DK GRA FUSES AMP COLOR TAN RED LT BLU YEL WHT VIOLET BROWN LT GRN DK B LU -B /U LP SW FUSE BLOCK (ALL EXCEPT L05) SECTION E-PAGE 9

344 RIGHT-HAND HIGH-LOW HEAD (P32) (P42) LT GRN - RIGHT HAND SIDE MARKER P32 I32/E33 ONLY P42) TO INSTRUMENT CLUSTER SHEET METAL ENGINE tf-s' V SHEET METAL 12.8 TAN BLK IP42 ONLY) BLK (P42 ONLY) BLK (P42 ONLY) BLK FRAME 4-GRD STRAP (P42 ONLY) ES! Ql OJ FRAME SPLICE CC CD CO d> TAIL LPS 20 AMP FUSE BLOCK C=G Q i b 1.8 BLK R.H. PARK & DIRECTIONAL >- z CM Q. CD CQ -J < O OO Ifi ifl *- N -9-8 BRN- K SPLICE 9 8 BLK L.H. PARK & DIRECTIONAL r \ it;: P (P42) (P32) LT GRN LT GRN - 12 ^.8 T A N F ] T A N OC CD K CD If) 00 LEFT-HAND HIGH-LOW HEAD 150/1 SI W) BLK SHEET METAL HEAD S & PARKING S SECTION E-PAGE BLK IP42 O N L Y ) BLK SHEET METAL LEFT-HAND SIDE MARKER P32 (32/E33 ONLY P42)

345 R H SIDE MARKER SHEET METAL R.H. SIDE MARKER BLK R.H. PARK & DIRECTIONAL 8 ppl HEAD SWITCH 00 di R.H. TAIL, STOP, & DIRECTIONAL SPLICE BRN ' 9.8 BRN 9.8 BRN - R.H. LICENSE BRN- L.H. PARK & DIRECTIONAL j.b p p l = c i Q D y I G t 3 = r i 9.8 BRI M l l/p BRN 7 T > SPLICE 9 L.H. LICENSE TO I/P CLUSTER CONN. 6 3 L ^ J r i i s i r ^ L.H. TAIL, STOP, & DIRECTIONAL B III ID B GS ID E " 1" IS I I I D f l Q I D O < D ID t t O D 09 A r t i m BLK Shun? *hu? u v i t-r u L.H. SIDE MARKER TAIL LPS 20 AMP i a is i FRONT FUSE BLOCK ' a C 3 I X I ) b n p r MJLB SHEET METAL L.H. SIDE MARKER MARKER S SECTION E-PAGE 11

346 R H SIDE MARKER P32 (E32/E33 ONLY -P42) R.H. PARK & DIRECTIONAL Ȧ 8 PPL * Q 3 CO 2 DC O 1 X CO > ^ FROM INST CLUSTER CONN FROM OIL PRESS GAUGE FROM IGNITION SWITCH W HT DK GRN YEL BRN 15.5 DK BLU LT BLU- / I JL r f- p 17 N 19 M 18 L I f K 2 ; J i r> II H 14 G 2 8 F. D DK BLU BLK 14.5 LT BLU BLK FROM PARKING BRAKE SWITCH (S T E E R IN G C O L S W IT C H E S! I U J I i RIGHT LEFT DIRECTIONAL SIGNAL SW TURN SIG. INDICATOR S PROVISIONS FOR RH TAIL, STOP & DIRECTIONAL (P32) R.H. TAIL, STOP & DIRECTIONAL (P42) 09 -J CO,/p CO YEL L.H. PARK & DIRECTIONAL 8 ppl DK GRN BRN l/p 14.5 LT BLU ^ 1 8 BLK- PROVISIONS FOR L.H. TAIL, STOP & DIRECTIONAL (P32) L.H. TAIL, STOP & DIRECTIONAL (P42) L.H. SIDE MARKER LA M P -P 32 (E32/E33 ONLY-P42) > / r HAZARD S SECTION E-PAGE DK BLU LT BLU

347 R H SIDE MARKER P32 IE32/E33 ONLY P42) DIRECTIONAL SIGNAL SW PROVISIONS FOR RH TAIL, STOP & DIRECTIONAL (P32) R.H. TAIL, STOP & DIRECTIONAL S. (P42) PROVISIONS FOR L.H. TAIL. STOP & DIRECTIONAL (P32) L.H. TAIL, STOP & DIRECTIONAL (P42) L.H. SIDE MARKER P32 (E32/E33 ONLY P42) DIRECTIONAL FLASHER DIRECTIONAL S SECTION E-PAGE 13

348 HORN RELAY L il i f240] 7 X Z cc O BLK HAZARD DIRECTIONAL SIGNAL SW O * I <sr l PROVISIONS FOR DOME TO HEAD SW ORN z cc * Q O HORN/DIM 15A IB ID CD B El (D B " * (HI S) ID CD B 09 ID OS < DBCD&5E(DtEl ATT e ft ACC m Sh u n? s h u n? f i * 'M p t e f ] R in r a n J S W 5 a FRONT FUSE BLOCK C=3 C=G ) C=3 REAR

349 WIPER/WASHER SECTION E-PAGE 15

350 :, T/c ^i«r 1 m 1 1 i l ! 1 * 1 M START (IGNITION L CYL. BODY STYLE- 4 2 BATTERY < SECTION E-PA G E 16 FRONT REAR

351 psa + BATTERY s L FRONT REAR START/IGNITIOIM LE 8-V 8 BODY S T Y L E SECTION E-PAGE 17

352 S TART/IG N ITIO N L T 9 -V 8 BODY S T Y L E SECTION E-PA G E 18 FRONT REAR

353 32 BLK 32 BLK r RED (P32) THERMO HW RED-THERMO HW RED <P42> RED (B3M ) RED (B3M ) STARTER MOTOR SOLENOID JUNCTION BLOCK FUSIBLE LINK PPL!P42) PPL (P32) J PPL / THERMO HW SPLICE RED (B3M ) f RED (P 42I r - H h,... m i 8^ y GENERATOR I RED (B 3 M I RED -32 BLK - f + - RIGHT HAND BATTERY ~ f" LEFT HAND BATTERY FUSE BLOCK C=3 D 3 ) 0 C ^ J J -H jj START LL4 DIESEL SECTION E-PAGE 19

354 GROMMET BLK/RED- JL ] = : i s D PPL/WHT WHT TAN/BLK (=3- ( = > COIL JUMPER COIL J T r* ii2 i WHT PNK TO TACH * _ j CO z 0. 0> <*» _ ip E T p = \ 0:: 4 1 * =H" 41? 472 Z 432 I 410 ECM CONN. e 496 [1 3 - DISTRIBUTOR RED FUSIBLE SPLICE START MOTOR/ SOLENOID TO INJECTORS TO HALF FUNCTION ESC PPL- -*r- >SPLICE 43 9 J P T H ] M 3 t i H i 4 *44 ^ 3 2 s f i j 1 r i [ OD h- CM < CO a UJ ee c (N PNK PPL JUNCTION BLOCK RED RED- FUSIBLE SPLICE RED- ENGINE -h C RED BED- FUSIBLE SPLICE RED PNK/BLK- O BLK (BATT CABLE) BLK RED- + - BATTERY SHEET METAL ENGINE GENERATOR TO KICK- DOWN RELAY IM40) PNK/BLK PNK/BLK- SPLICE 39 START/IGNITION - L 0 5-V 8 SECTION E-PAGE 20 TO AIR SWITCH

355 TO CLUTCH START SWITCH (MAN TRANS) OR NEUTRAL SAFETY SWITCH (AUTO TRANS) TO PARK/ NEUTRAL RELAY (AUTO ONLYI TO CLUTCH SWITCH (MAN TRANS) OR TO NEUTRAL START & BACK-UP SWITCH (AUTO TRANS) i V l 1.6 I a I Lr ; 1I i_i TO PARK/ NEUTRAL RELAY TO CHECK ENGINE FUSE BLOCK FRONT FUSE BLOCK REAR START/IGISIITION L 0 5 -V 8 P 4 2 & L 0 5 -V 8 TBI DRIVE A W A Y SECTION E-PAGE 21

356 SECTION E-PAGE 22

357 OXYGEN SENSOR 412 THROTTLE POSITION SENSOR ELECTRONIC CONTROL MODULE CONNECTORS THROTTLE BODY INJECTION (L05-V8) SECTION E-PAGE 23

358 GROMMET TO ECM FUEL PUMP RELAY STEPPER 441 i t I 444 IDLE AIR CONTROL ALTERNATOR BRACKET SYSTEM NO. 2 (LH REAR CYLINDER HEAD) FUEL PUMP OIL PRESSURE SENSOR & SWITCH FUEL CONTROL & IDLE AIR CONTROL L 0 5 SECTION E-PAGE 24

359 ENGINE I f } BLK 1 AIR DIVERT SOLENOID (NAS) Y EL PNK/BLK - * s 00 I - ( PNK/BLK - l/p AIR CONTROLLER (NA5) AIR DIVERT SOL IGN SWITCH TACH TO COIL CHECK ENGINE LP - AIR SW SOLENOID YEL PNK/BLK BLK WHT BRN/WHT - SPLICE 936 \ SPLICE 39 n NB BRN/WHT PNK/BLK I CD 00 ENGINE _ i ii ii P c E B n BRN/WHT PNK/BLK i NB2- I i 1CO 1 \\» I lb i - i ( ) I If " l I I I 1 J 3b,i 2 *.J T b I H i I r BRN * _ j IDLE STOP SOLENOID DISTRIBUTOR CONNECTOR AIR CLEANER TEMPERATURE SWITCH 1NA5) BtD WHT Z KflO i*ji PNK/BLK- <0 * > 00 <0 W ai Z CM ENGINE SPEED I SWITCH > SOLENOID NB2 ENGINE SPEED SWITCH RELAY NB WHT u CO c q i i + i ' T _ _ i ^ * n * z a. 00 d> 0) CO i - i - 1 J I B ffl Q B B DD 0 * * * IB IE) HI B S3 ED 0 *T* e is 5 b n b ATT igft ACC I K rv n n n p i SHUNT SHUNT j SA OS [?] ~ ~ d s i H M D a g n n FROWT D FUSE BLOCK NEAR D ENGINE I EMISSION CONTROLS L25 SECTION E-PAGE 25

360 BODY RIGHT HAND AIR DIVERT SOLENOID (N A 5 ) AIR DIVERTER SYSTEM RELAY (N A 5 ) AIR DIVERTER MODULE (N A 5 ) LEFT HAND AIR DIVERT SOLENOID EMISSION CONTROLS LE8 SECTION E-PAGE 26

361 RIGHT HAND AIR DIVERT SOLENOID (NA5I YEL PNK/BLK ENGINE BLK * NB2 I PNK/BLK - l/p YEL SPLICE 936 7' * _ j CD Z 0. I * _ l t CO ENGINE.EL i ii if ii 33 ] 1 n 1 1 l l i l I 29 \2 lb I - I ; :... b 3 L If I I I A U I * I I T J.l K 9] J _.Jr AIR DIVERT SOL * 936 AIR IGNITION SWITCH -3 9 CONTROLLER GROUNO (N A 5 I TACH TO COIL 121 CHECK ENGINE LP -419 AIR SW SOLENOID PNK/BLK BLK WHT BRN/WHT BRN SPLICE 39 n BRN/WHT NB2 DISTRIBUTOR CONNECTOR AIR CLEANER TEMPERATURE SWITCH BtO HI WHT- I4361 i [ z -l tc ui CO > 00 CO <0 IS m m * at - J m > m 5 «ENGINE SPEED SWITCH SOLENOID NB2 ENGINE SPEED SWITCH RELAY NB2 ) C=D J LEFT HAND AIR DIVERT SOLENOID YEL PNK/BLK - ANTI-DIESEL SOLENOID (MAN TRANS ONLY! ENGINE _J EMISSION CONTROLS-LT9 SECTION E - PAGE 27

362 FAST IDLE SOLENOID COLD ADVANCE CONTROL COLD ADVANCE FAST IDLE TEMPERATURE SWITCH VACUUM REGULATOR VALVE SWITCH m ORN I n 39.8 PNK/BLK O U L L i l FUEL PRESSURE TRANSMISSION SWITCH <M40) IGNITION SWITCH WATER IN FUEL SENSOR FUEL HEATER ^ SPLICE 1 50 l/p 2 CL O G] S E) ID E)*>* D CD B ED DO 0 < HTR m 65 0 dd ENGINE FUEL SHUT- OFF VALVE GLOW PLUG CONTROLLER PNK BLK SPLICE 3 - < v A L y - e e CD PNK DIESEL ENGINE C O N T R O L S -L L 4 SECTION E-PAGE 28 U t m C E B BRN/WHT ^ 1 11 Jj S J 35 i S08 68 u TO WATER IN FUEL - TO SPLICE 39 FRONT FUSE BLOCK PNK/BLK C3C=3 C=3 0 REAR

363 FUEL SHUT- OFF VALVE GLOW PLUGS LL4 DIESEL SECTION E-PAGE 29

364 THROTTLE POSITION SENSOR > BLK DK BLU G R A----- MANIFOLD ABSOLUTE PRESSURE SENSOR PNK/BLK ORN BLK/RED BLK/RED LT GRN/BLK LT GRN/BLK - COOLANT TEMP SENSOR V I" 3 V> = a ^ y YEL BLK- SPLICE 452 SPLICE DK BLU GRA YEL BLK BLK DK BLU GRA YEL BLK BLK PPL PPL BRN- E.S.C. SENSOR DK BLU E.S.C. HYBRID FUNCTION 12V IGN FUSED * SPARK RETARD E S C «E S C SEN INPUT c Li PNK/BLK BLK BRN BLK/WHTl/P DK B L U r _ r v i...r I O XYG EN SENSOR PPL - q s s S L / 8 9 1> ELECTRONIC CONTROL M O D U L E -IN P U T S L 0 5 -V 8 SECTION E-PAGE 30 FROM SPLICE 150 (PARK/NEUT. RELAY! (FUEL CYCLER MODULE)

365 TO ECM ELECTRONIC CONTROL M O D U L E -IN P U T S L 0 5 -V 8 SECTION E-PAGE 31

366 ELECTRONIC SPARK TIMING E.V.R.V. AIR SWITCH FUEL PUMP RELAY FUEL PUMP OIL PRESSURE SENSOR & SWITCH ELECTRONIC CONTROL M O D U L E -O U T P U T S L 0 5 -V 8 SECTION E-PAGE 32 TO SPLICE 39 TO OIL PRESS GAUGE

367 TO ECM PNK/BLK ELECTRONIC CONTROL M O D U L E -O U T P U T S L 0 5 -V 8 SECTION E-PAGE 33

368 CIRCUIT NO. WIRE SIZE COLOR CAVITY DESCRIPTION CIRCUIT NO. WIRE SIZE COLOR CAVITY DESCRIPTION DK G RN/W HT A1 FUEL PUMP RELAY DRIVE A 2 NO T USED A 3 NOT USED GRA A 4 EVRV BRN/W HT A 5 SYSTEM CHECK LAM P PNK/BLK A V IGNITION FUSED * TAN/BLK A 7 M 4 0 KIC KD O W N RELAY TAN/BLK A 7 UPSHIFT M A N -O N L Y ORN A 8 SERIAL D A T A W H T/B LK A 9 ASS Y LINE DIAG/LINK BRN A 1 0 SPEED SENSOR BLK A1 1 5 V SYSTEM RETURN A BLK/W H T A 1 2 SYSTEM RETURN ORN B1 1 2 V BATTERY FUSED T A N /W H T B2 ELEC FUEL PUMP FUSED FEED BLK/RED B3 DISTRIBUTOR REF LOW B4 NOT USED PPL/W HT B5 DISTRIBUTOR REF HIGH B6 NO T USED BLK B7 SPARK RETARD CONTROL B8 B9 NOT USED NO T USED * ORN/BLK B 1 0 PARK/NEUTRAL SW ITCH B 1 1 NOT USED * A U TO TRANS ONLY B 12 NOT USED C1 NOT USED BRN C2 AIR SW SOLENOID LT GRN/BLK C 3 STEPPER COIL B LO W LT G R N /W H T C 4 STEPPER COIL B HIGH LT B LU /W H T C 5 STEPPER COIL A HIGH LT BLU/BLK C6 STEPPER COIL A LOW C7 C 8 NOT USED NOT USED PPL C 9 CRANK DISCRETE FUSED YEL C 1 0 COOLANT TEMPERATURE LT GRN C 1 1 M ANIFO LD ABSOLUTE PRESS C 1 2 NOT USED DK BLU C 1 3 THROTTLE POSITION SENSOR GRA C 1 4 5V SENSOR REFERENCE LT GRN C 1 5 INJECTOR B DRIVE ORN C V BATTERY FUSED B LK /W H T D1 SYSTEM RETURN PPL D2 5V RETURN A D3 NOT USED W H T D 4 HEI SPARK TIM ING TA N /B LK D5 HEI BYPASS TAN D6 OXYGEN SENSOR LOW PPL D 7 OXYGEN SENSOR HIGH D 8 D 9 D 1 0 D 1 1 D 1 2 D 1 3 NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED LT GRN D 1 4 INJECTOR B DRIVE LT BLU D 1 5 INJECTOR A DRIVE LT BLU D 1 6 INJECTOR A DRIVE ELECTRONIC CONTROL M ODULE L 0 5 -V 8 TBI SECTION E - PAGE 34

369 TRANSMISSION KICKDOWN SOLENOID SPLICE 422 K TO ALDL TAN/BLK l/p TAN/BLK - TO AIR SWITCH ENGINE 55.8 ORN KICKDOWN RELAY Z < 9 I I ~ I i. :: ( n l l [ y \ I 35I 2 J r <*3 4 J ^ 39.8 PNK/BLK PNK/BLK SPLICE PNK/BLK TO SPLICE 39 FRONT TAN/BLK PNK/BLK ORN L05 TRANSMISSION KICKDOWN SOLENOID FOR LE8, LT9. L25 ONLY TRANSMISSION KICKDOWN SOLENOID FOR LL4 DIESEL ONLY O RN / (BODY STYLE 32 ONLY) KICKDOWN SWITCH LL4 DIESEL ONLY r_ i ' 3 I GROMMET I I (BODY STYLE 42 ONLY) ORN- (BODY STYLE 42 ONLY) 55.8 ORN ENGINE J l O C E I Q i n 55 j U39 ( ~ H (BODY STYLE 32 ONLY) - j ca z Q. TO COLD «ADVANCE 0> TEMPERATURE? SWITCH KICKDOWN SWITCH FOR LE8. LT9, L25 ONLY " LL4 DIESEL ONLY 39.5 PNK/BLK 55.8 ORN f [ g r l/p I I ^ I ((y> : 6 3 L j ] j j j] 2 31 I 35 2 Jl3 0 f i i i r - T V * - i m z SPLICE 39 TO OIL - PRESSURE GAUGE TO l/p CLUSTER CONNECTOR SI Q 0 (D 83"*" m Q Q El Q IB < HTR ID &5 El PNK/BLK GAUGES 20 AMP t a C X I D O 0 C=3 REAR ORN 39.5 PNK/BLK - SPLICE 39 TO WATER IN FUEL SENSOR - TO FUEL HEATER LE8, LT9,L25,LL4 A U T O M A T IC TR ANSM ISSIO N K IC KD O W N SOLENOID (M 4 0 ) SECTION E-PAGE 35

370 INSTRUMENT PANEL CLUSTER CONNECTOR SEE PAGE BRAKE PRESSURE WARNING SW LE8, LT9. L25 (BODY STYLE 42 ONLY) LL4 (ALL BODY STYLES) BRAKE WARNING SYSTEM SECTION E - PAGE 36 LE8. LT9, L25 (BODY STYLE 42 ONLY) LL4 (ALL BODY STYLES) 33.5 TAN/WHT -

371 . FOR C O N T IN U A T IO N O F W IR IN G SEE BRAKE W ARNING SYSTEM ) LOW VACUUM SWITCH (LL 4 O N LY ) BLK T A N /W H T 33 ) B L K T A N /W H T PARK BRAKE SWITCH <*> L L 4 ^ O N LY DIODE f t HYDRO BOOST PRESSURE SWITCH / YEL GROMMET T A N /W H T T A N I B OB CD B wtw H) E 03 0 E E 0 < MTU ' (B ID B ID B B L K * - j CQ a. C= ) UJ > I 2 < h- - J CO FUSE BLOCK REAR FLOW SWITCH Y E L B L K /Y E L B L K BLK - L L 4 O N LY HYDRO BOOST SWITCH ALARM t ALARM J im I l k P N K /B L K W H T ' C A P A C /D IO D E LE AD B L K /Y E L - BRAKE W AR N IN G SYSTEM (RPO UJ1 FOR B3D) SECTION E-PAGE 37

372 TRANSMISSION DIAL SOCKET (LE8. LL4 ONLY) 0 WIPER/WASHER SWITCH ILLUM ILLUM ILLUM HIGH BEAM BLK ) i f I I WINDSHIELD WIPER WASHER SWITCH «c SHEET METAL I 91 1 l « HEAD SWITCH 8.5 GRA GRA OK GRN - INDICATOR S > OIL GAGE > ~1 FRONT FUSE BLOCK C 3 C 3 ) B CU j REAR l/p BLK BLK SPLICE BLK- INSTRUMENT PANEL S SECTION E-PAGE 38

373 COOLANT TEMP SWITCH COOLANT TEMP SENDER METAL TEMP SWITCH OIL PRESS SENDER FUEL PUMP OIL PRESS SENSOR & SW FUEL PUMP ILLUM ILLUM ILLUM HIGH BEAM t J_ I n I 30 I I ' O 3 rw.u i M M jl I 11 I S\ HJ BLK FRONT FUSE BLOCK INSTRUMENT PANEL GAGES SECTION E-PAGE 39

374 SECTION E-PAGE 40

375 PPL- DIRECTIONAL SIGNAL SW s=n 5 E (STEERING COL SW ITCHES) T - * ' A ft t. T j i e U i i ILLUM ILLUM ILLUM HIGH BEAM BRN- TO l/p CONN I I J _ * t ~ CHOKE WARNING (LE8) CHECK ENGINE (LT9, LE8. -N A 5 ) CHECK ENGINE (L05) LEFT TURN SIGNAL RIGHT TURN SIGNAL PNK/BLK DK BLU LT BLU DK BLU L05 ONLY LE8 TO KICK- ONLY L d w n SW. ^ BRN/WHT BRN/WHT L05 ONLY TO PARK/NEUTRAL RELAY TO FUEL CYCLER _ MODULE PNK/BLK PNK/BLK TAN/WHT TAN/WHT PNK/BLK TAN/WHT TAN/WHT- HEAD SW. * - OIL GAGE PNK/BLK TAN/WHT TAN/WHTn n OD l~30~ m mm O D IGNITION SWITCH 0 ^ 0 0 ^ i i t -v I * r i f I O l O O O ml2 CZJ 33 1 i 0 ; 11 PARK BRAKE SWITCH OR OPTION BLKcc a p l~o33 V> n "" c ^ n? > BLK LT GRN- INDICATOR S SECTION E-PAGE 41

376 m is GD OD IQ B Q ID Q < (B 0 ATT IB) 0 B * * * CD CO B E) GD IGN ACC IPS E J O [Ml [Sp IGN T I A O ^ CMOKI S i & a a FUSE BLOCK (ALL EXCEPT L05) a n C BLU J TRANSMISSION BACK-UP SWITCH (AUTO TRANS ONLY) DK BLU- I H LT GRN- r i r LT GRN - I 75.8 DK BLU DK BLU LT GRN & MANUAL TRANSMISSION ONLY : i J PROVISIONS FOR BACK-UP LP ( 2 4 ) ) n j RIGHT HAND BACK-UP (RPO E32/E33 ONLY) 1! AC.8 BLK LT GRN- I i i I I M l H M k S I I / S S 'S I M5U s a f e s. ii MANUAL ONLY! I l/p C w *\-\ I M - F m l ^ s I a.8 BLK FRONT FUSE BLOCK L05 L_ REAR 38.8 DK BLU J DK BLU Ik L L ^ J r 9 3 i f r J I I z c c I I I D 00 * PROVISIONS FOR BACKUP LP LEFT HAND BACK-UP (RPO E32/E33 ONLY) BACKUP SWITCH 4-SPEED MAN. ONLY I m C i ( T LT GRN DK BLU- t - C BACK-UP S SECTION E-PAGE MANUAL ONLY GROMMET

377 R.H. SIDE MARKER PROVISIONS FOR R.H. TAIL. STOP & DIRECTIONAL IP32) R.H. TAIL, STOP & DIRECTIONAL (P42) HEAD SWITCH t 8 BLK.8 BLK -9.8 BRN- l/p 9-8 BRN 9-8 BRN- SPLICE 9 R.H. LICENSE 9.8 BRN N * * l [ 9 3 l [ j 33 f 1 j l 3 0 r i 4 i 9 l i i r L.H. TAIL, STOP & DIRECTIONAL (P42) H) HI ID 0 E ID (B""* 0 OD ID CD Q GD ID 09 < ID 01 ID AS El CD ID ATT KM ACC L K Cm? KJCZl L.H. SIDE MARKER PROVISIONS FOR L.H. TAIL, STOP & DIRECTIONAL (P32) TAIL LPS, 20 AMP f f e r C 3 C 3 C 3 FRONT FUSE BLOCK REAR TAIL S SECTION E-PAGE 43

378 R.H. SIDE MARKER HEAD SWITCH TO R.H. TAIL, STOP & DIRECTIONAL (P42) PROVISIONS FOR LICENSE (P32) 9.8 BRN- SPLICE BRN--0 R.H. LICENSE (P42) 8 BLK BRN- l/p -9-8 BRN BRN- & Di r ~ \ -TJ TO FORWARD S T T / N ^ L _ 1 93, I S [ 2 l3 0 j- 2 3,- i 4.,9i l i r BRN- 2 CC CO 00 9) SPLICE BRN.8 BLK I ' N \ M ) L.H. LICENSE (P42) PROVISIONS FOR LICENSE (P32) TO L.H. TAIL. STOP & DIRECTIONAL (P42) m IB B E G ] > * E) IB IB m ATT SHUNT J l. TsT 0 H E B 4 HI. ' ID 65 B B MW* a c c ir s s=s? rsr L.H. SIDE MARKER 20A TAIL LPS 20 AMP r f s * i» i = 3 «n a s a FVIONT FUSE BLOCK REAR LICENSE S SECTION E-PAGE 4 4

379 1988 M VAN SECTION F PAGE DESCRIPTION PAGE 2 POWER DISTRIBUTION 41 3 POWER DISTRIBUTION (ELECTRONIC CLUSTER ONLY) 42 4 FUSE BLOCK DETAIL 43 5 FUSE BLOCK DETAIL (ELECTRONIC CLUSTER ONLY) HEAD S & PARKING S 45 7 MARKER S 46 8 HAZARD S DIRECTIONAL S FOG S (ANL) HORNS START (4 CYL.) START (6 CYL.) IGNITION (4 CYL.) IGNITION (6 CYL.) THROTTLE BODY INJECTION (4 CYL.) THROTTLE BODY INJECTION (6 CYL.) FUEL CONTROL & IDLE AIR CONTROL (L N 8-4 CYL.) FUEL CONTROL & IDLE AIR CONTROL (LB4-V6) ELECTRONIC CONTROL MODULE (ECM)-INPUTS (L N 8-4 CYL.) ELECTRONIC CONTROL MODULE (ECM)-OUTPUTS (LN 8-4 CYL.) ECM CHART (L N 8-4 CYL.) ELECTRONIC CONTROL MODULE (ECM)-INPUTS (L B 4-V 6) ELECTRONIC CONTROL MODULE (ECM)-OUTPUTS (L B 4- V6) ECM CHART (LB 4-V6) TRANSMISSION CONVERTER CLUTCH DETENT SOLENOID REAR AIR CONDITIONING (C69) AIR CONDITIONING (L N 8-4 CYL.) AIR CONDITIONING (L B 4-V 6) HEATER DESCRIPTION AUXILIARY HEATER (C36) BRAKE WARNING SYSTEM INSTRUMENT PANEL S (TELLTALE VERSION) INSTRUMENT PANEL S (GAGE VERSION) INSTRUMENT PANEL S (ELECTRONIC CLUSTER) INSTRUMENT PANEL GAGES (TELLTALE VERSION) INSTRUMENT PANEL GAGES (GAGE VERSION) INDICATOR S (TELLTALE VERSION) INDICATOR S (GAGE VERSION) INDICATOR S (ELECTRONIC CLUSTER) DOME S LIGHTING PACKAGES-(C95) (DK6) LIGHTING PACKAGE (TR9) RADIO EQUIPMENT (STEREO) (UU9, UM7, UM6, UX1) RADIO EQUIPMENT (U63, U69) POWER WINDOWS (A31) POWER DOOR LOCKS (AU3) POWER SEAT (AC3) SEAT BELT WARNING BUZZER POWER MIRRORS (D48) VANITY MIRROR (D64) WIPER/WASHER PULSE WIPER/WASHER (CD4) CRUISE CONTROL (K34) BACK-UP S TAIL S LICENSE TRAILER WIRING (UY7) INDEX SECTION F-PAGE 1

380 I/P JUNCTION BLOCK TO TEMPERATURE TO BRAKE WARNING SYSTEM POWER DISTRIBUTION (EXC. ELECTRONIC CLUSTER) SECTION F-PAGE 2

381 l/p JU N C TIO N BLOCK i/p 3 0 W A Y CONN A^I1 3 '.l j u 4 I ; I I l ZD CD ED ED CUD TO TEM PERATURE L A M P TO BRAKE W ARNING SYSTEM MOLDED SPLICE > V \ 5 j k I GRA SIL FUSIBLE LINK... i. -i bm GENERATOR RED - TO A/C (IF EQUIPPED) BLK BLK SHEET M E TA L GRD POWER DISTRIBUTION L B 4 - A U T 0 TR AN SM ISSIO N (ELECTRONIC CLUSTER ONLY) SECTION F-PAGE 3

382 POWER CIRCUIT AMP CIRC BREAKER POWER WINDOWS IGNITION- 3 9 / 2 0 AMP CRUISE CONTROL- ASHTRAY L P BATT 4 0 /2 0 AMP GLOVE BOX PNL L P S -8 /1 0 AMP RR A/C SW LP RR AUX HTR SW DOME SW & LP CIGARETTE LIGHTER LP & CONVENIENCE TRAY LP FOG S AUX HEATER REAR AIR/COND MIRROR SW LP CLOCK GO [ I CIGARETTE LTR VANITY MIRROR GO GU {!] a B A T T m 0 a i i IG N A C C LPS POWER CIRCUIT AMP CIRC BREAKER POWER DOOR LOCKS 8.5 GRA DK GRN LT SW RHEOSTAT ORN/BLK -BAT-FUSED INTER LP HORN RELAY 39.8 PNK/BLK IGN SPLICE SHUNTS SHUNTS J O A ^ IN S T LPS [ M l ( 3 d K l S T O P /H A Z [R] R A D IO [Ml W IPER O R N -H A Z FLASH RED-BATTERY O R N -IG N YEL-RADiO BRN-HEATER/AIR B R N -IG N S W -A C C 93-8 W H T -W /S WASHER WIPER SHUNT (TYP.) PNK IGN S W -IG N O R N -L T S W -T A IL/P K LPS R ED-IGN S W -B A T ORN-ELEC CNTRL MOD DK B LU -D IR SIG FLASHER DK BLU-BACKUP LP SW PNK/BLK ELEC CNTRL MOD IGN W HT INJECTOR "B " (V6 ONLY) W HT-INJECTOR " A " (V6 ONLY) PPL/WHT CRANK (V6 ONLY) PNK POWER WINDOWS STARTER SOLENOID FEED (V6 ONLY) FRONT BLOCK-MOLD PRINTED BLOCK REAR RED-IG N SW BATT (V6 ONLY) ORN-ELEC FUEL PUMP (V6 ONLY) COLOR MALE CONN MULT CONN I NAT A BRN B BLK L GRN P RED W BLU H DK GRA ORN FUSES AMP COLOR TAN RED LT BLU YEL WHT VIOLET BROWN LT GRN FUSE BLOCK SECTION F PAGE 4

383 POWER CIRCUIT AMP CIRC BREAKER PNL LPS 8 /1 0 AMP POWER WINDOWS RR AUX HTR SW RR A/C SW LP CRUISE CONTROL ASHTRAY LP DOME SW & LP CIGARETTE LIGHTER LP & CONVENIENCE TRAY LP FOG S 5 GRA PNK POWER WINDOWS- GLOVE BOX AUX HEATER CLOCK FOG S REAR AIR/COND 39-8 PNK/BLK IGN SPLICE CIGARETTE LTR MIRROR SW LP ORN-CONVENIENCE CENTER VANITY MIRROR POWER CIRCUIT AMP CIRCUIT BREAKER ORN/BLK-BODY CONNECTOR SHUNT (TYP.) POWER DOOR LOCKS O R N -H A Z FLASH RED-BATTERY O R N -IG N 43-5 YEL-RADIO PNK IGN S W -IG N RED-BATTERY O R N -L T SW -TAIL/PARK LPS BRN-HEATER/AIR B R N -IG N S W -A C C 93.8 W H T W/S WASHER SW 38-8 DK B LU -D IR SIG FLASHER ORN-ELEC CNTRL MOD 75-8 DK BLU-BACKUP LP SW PNK/BLK ELEC CNTRL MOD IGN W H T W/S WIPER WIPER PPL CRANK PNK/WHT INSTRUMENT CLUSTER 6.8 PPL STARTER SOLENOID FEED RED-BATTERY PNK/WHT INSTRUMENT ORN-ELEC FUEL PUMP FRONT BLOCK-MOLD CLUSTER REAR PRINTED BLOCK COLOR MALE CONN MULT CONN 1 NAT A BRN B BLK L GRN P RED W BLU H DK GRA ORN FUSES AMP COLOR TAN RED LT BLU YEL WHT VIOLET BROWN LT GRN FUSE BLOCK (ELECTRONIC CLUSTER ONLY) SECTION F-PAGE 5

384 R.H. HEAD TO R.H. SIDE MARKER A l/p CLUSTER CONN (ELECTRONIC BLK SHEET METAL TAIL LPS 20 AMP SPLICE 9 FROM W. WASHER PUMP FROM HTR BLOWER MOTOR 9.8 BRN LT GRN TAN SPLICE 9 HEAD S & PARKING S SECTION F-PAGE 6 TO L.H. SIDE MARKER BLK MOLDED SPLICE

385 R H SIDE MARKER HEAD. PANEL & DOME S SWITCH R.H. SIDE MARKER ORN R.H. PARK & DIRECTIONAL z c a 00 9> D CD * Q 9 8 BRN ' _J CD CO TO TAIL TO l/p CLUSTER CONN GROMMET SPLICE V- / SPLICE TO PANEL - LPS. DIMMER SWITCH -9.8 BRN- BODY CONN 9.8 BRN BLK- BACKUP 1 TAIL : SPLICE 9 R.H. SPLICE 150 TAIL - «BACKUP BLK- LICENSE -9.8 BRN L.H. 9*.8 BRN GROMMET L.H. PARK & DIRECTIONAL > 3 - J CO CONN & SEAL ASM SI [0 0 0 (D IE s s i m a s i a 0 IB) - j m 00 TO TAIL S ) s ATT Q] (T) B [L] [3 K«M ACC IPS fwr SHUNTS SHUNTS 10A 30 CIR/BRK ccajscs a u x m ti f l A l R a] R T I L.H. SIDE MARKER [ 3 FRONT FUSE BLOCK REAR L.H. SIDE MARKER MARKER S SECTION F-PAGE 7

386

387 l/p CLUSTER CONN R.H. TAIL, STOP & DIRECTIONAL HAZARD S SECTION F-PAGE 9

388 R.H. SIDE MARKER LAM P DIRECTIONAL FLASHER BLK B S C g H l - FROM RH HEAD CONN SHEET M ETAL 15.8 DK BLU- SPLICE 15 R.H. PARK & DIRECTIONAL LAM P ^ CN t c m Q 0 0 (D S O S *DO ibn ACC ips SHUNTS [ M ] HtAr EH] < ^ 0 O SPLICE G d S O FROM W WASHER PUMP FROM HTR BLOWER MOTOR L.H. PARK & DIRECTIONAL LAM P 14.8 LT BLU BLK SPLICE DK BLU 5.8 DK BLU 4-8 LT BLU FRONT FUSE BLOCK REAR l/p CONN 156 L i i : a BODY CONN A SHI 18.8 YEL DRK GRN TO L.H. HEAD /? I C-Dh FI 14 8 LT BLU > BLK BLK SHEET M ETAL G ROUND 19-8 DK GRN YEL DIRECTIONAL S SECTION F-PAGE 10 C T s, D E LM MARKER Hf l llam a m P 15.8 DK BLU 14.8 LT BLU

389 R.H. TAIL, S TO P & DIR EC TIO N A L LAM P DIRECTIONAL S SECTION F-PAGE 11

390 TO BUSBAR GRD BRN TO l/p CONN BLK BLK R.H. FOG 8.8 GRA E F IIS m m GRA FOG SWITCH ILLUM. LP PPL/W HT BLK S 0 E ' Hi A' IB S ID B 1 b 19 WOO (B [B CD CD ATT K3N BRN Ml D C B A D C B A VT PPL PPL/WHT 9.8 GRA PPL PPL/WHT IND. LP LT BLUE FUSE BLOCK 2.8 RED AMP FUSE l ] [ Q a FRONT 2.8 RED L.H. FOG PPL/WHT BLK SPLICE 154 SPLICE PPL/WHT BLK - n CONN & SEAL ASM r PPL/WHT I- X S a> JETB m n - E s j T lq D,n <0 CO FOG RELAY TO BULKHEAD POWER STUD TO l/p CONN LT GRN FOG S (ANL) SECTION F-PAGE 12

391 CONVENIENCE CENTER r r * = > D O f m uxat i HORN RELAY 3i r ~ DK GRN 06 MODEL ONLY 2 a. a a ct * - I ca Z tc * 'STEERING COL SWI1CHESI HORN m a s s m a s s a G3 m B td ES *c* 4cc in nm z tc X D IRECTIONAL SIG NAL SW FRONT FUSE BLOCK REAR a CONN & SEAL ASM HORNS SECTION F-PAGE 13

392 [ =C ) * CD 1.0 RUST 3.0 RUST TO ECM 3 r <= m 9- STARTER MOTOR SOLENOID FUSIBLE LINK FUSIBLE LINK GENERATOR SPLICE SPLICE I/P JUNCTION BLOCK I 42 4 S l T b C J le H le J5 E s s lf T s ill I F l U l F I^ l I 2 J L i J h i y L J L J I WHT * Z z cc a. cq l/ p 30 WAY CONN B B l 420j 30 I 31 I 35 7b T I 24 * n Li? L l«6l «22 l 456l I 39 44p l5b 49b « B z RED a z CC a. cq RED 9 ui iti n TO AUD BUZZER ALARM TO VSS - TO TCC BRK S W. (AUTO ONLY) TO HD LP SW LP SKT PPL BRN PNK/BLK RED RED SPLICE 2 T V _Jfi l/p CLUSTER CONN n r i n n u 1391 i 4 9 i 14 l 237l i 419 is i M SPLICE 39 MANUAL ONLY K. 13 i.5 i 2b m L t J i AUTO ONLY RED RED PNK/BLK TO l/p CONN. * a r > - s Z < TO BODY CONN. l/p CLUSTER CONN t S. f l UD U T J l l n l l E j 0 D u C D Q D E > 9 8 Z IO PPL BLK RED MOLDED SPLICES BLK/RED BLK BLK CONN & SEAL ASM ( CD CD S S 0 0 D D UJ CC UJ cc 9 CO t N CS * _J f f i z Q. 00 d> c ~ f j t = YEL CLUTCH SWITCH c fspllgn 3 B T 3 m g rd 1 n r GRD I 4 H B I T O, O * START RUN i OFF LOCK ACC 32.0 BLK Q J _ Q _ + SHEET METAL BATTERY START (4 CYL.) SECTION F-PAGE 14 i [ S i K ] c r *..._a FRONT FUSE BLOCK REAR

393 l/p JU N C TIO N BLOCK 19.0 BLK START (6 CYL.) SECTION F-PAGE 15

394 -J m s <*) * L T SIG COND HE! REF T S i 21 - C 3 3 Q V^ t j PNK/BLK BLK/RED PPL/WHT WHT TAN/BLK' GROMMET PNK/BLK BLK/RED PPL/WHT WHT TAN/BLK DISTRIBUTOR & COIL 121 Am I III 3 3 L-} S' i m WHT - TACHOMETER ELECTRONIC CONTROL MODULE CONNECTORS SPLICE 439 TO ' INJECTOR PNK- fl 121 yihj BRN- l/p JUNCTION BLOCK BRN B B i/p 30 WAY CONN PNK 420 p>5 l ' t t i [t t i r ^ n r r n i~3qi [45; I I PNK/BLK PNK/BLK I BRN PNK PNK/BLK PNK/BLK - l5 B GENERATOR BRN 39-8 PNK/BLK B B CONN & SEAL ASM IGNITION (4 CYL.) SECTION F-PAGE 16

395 I/P CLUSTER CONN AUDIO BUZZER ALARM 39-8 PNK/BLK 25.8 BRN PNK PNK/BLK FRONT FUSE BLOCK REAR IGNITION (4 CYL.) SECTION F-PAGE 17

396 ELECTRONIC CONTROL MODULE CONNECTORS TO STARTER IGNITION (6 CYL.) SECTION F-PAGE 18

397 25-.8 BRN l/p CLUSTER CONN AUDIO BUZZER ALARM 39.8 PNK/BLK BRN PNK PNK/BLK FRONT FUSE BLOCK -REAR IGNITION (6 CYL.) SECTION F-PAGE 19

398 OXYGEN SENSOR TO COOLANT TEMP. SENSOR SPLICE PPL THROTTLE POSITION SENSOR GROMMET PPL PPL BLK DK BLU DK BLU B LK ~ T l ( q i GRA I > GRA SPLICE DK BLU \ n / 4 1j ) ' r PNK/BLK- TO MAP SENSOR DK BLU BLK GRA DK BLU PNK/BLK ELECTRONIC CONTROL MODULE CONNECTORS INJECTOR DK BLU PNK/BLK- SPLICE 439 TO EGR SOLENOID' DK BLU PNK/BLK - l/p JUNCTION BLOCK fl420 45l d f 25 ) 20 75J 35 I 31 j 130 " U] I l/p 30 WAY CONN B B ll4 2 0 j B IB a S 8 0 E 51 e a 0 0 a hi a a 0 is PNK/BLK -... II 1 ujf n TEH KH 3CJEElGiEI 4I9!20l T S B m ;5)l20 419l J 15g 49s) f PNK/BLK PNK/BLK THROTTLE BODY INJECTION (4 CYL.) SECTION F-PAGE CONN & SEAL ASM

399 OXYGEN SENSOR TO COOLANT TEMP. SENSOR SPLICE BLK PPL PPL THROTTLE POSITION SENSOR WITH ELECTRONIC INSTR. CLUSTER ONLY R E D PNK/BLK TO ESC HYBRID FUNCTION RED PNK/BLK WHT WHT BLK BLK BLK DK BLU DK BLU DK BLU 4 1 # G R A GRA DK GRN GRA DK GRN DK BLU - ; DK BLU INJECTOR RED SPLICE GROMMET ELECTRONIC CONTROL MODULE CONNECTORS DK BLU cc WHT SPLICE DK BLU DK GRN l/p JUNCTION BLOCK I X S 00 N 00 1 ( ] «3 E!3 EE1E1 3C!E ZDQDtZDGDGS l E J C l l 13 pin I m u e h ( B B l _ ]_ 7 5 j_ 2 ^ 4 6 l l/p 30-W AY CONN HI 0 B 15 (D Si (E S3 0 H (3 ED IB (fi QD CD (5 (D (5 O WHT PNK/BLK je H G 6 [ a3 C « f l i l l l j RED ] I f ^ 65i 120U WHT PNK/BLK RED WHT PNK/BLK RED CONN & SEAL ASM THROTTLE BODY INJECTION (6 CYL.) SECTION F-PAGE 21

400 IDLE AIR CONTROL REDUNDANT i h g s a TO ECM l/p CLUSTER CONN $59 DOE FUEL PUMP PRIME FUEL CONTROL & IDLE AIR CONTROL ( L N 8-4 CYL.) SECTION F-PAGE 22

401 IDLE AIR CONTROL- INJ. ACTUATOR OIL PRESSURE SWITCH FUEL PUMP BACKUP TO ECM FUEL PUMP PRIME l/p CLUSTER CONN r i m.19 ii ii4'9 L 39 1b 30 _ In f 150li b B BLK - e s C p H i ' CONN & SEAL ASM FUEL CONTROL & IDLE AIR CONTROL ( L B 4-6 C YL.) SECTION F-PAGE 23

402 THROTTLE POSITION SENSOR DK BLU BLK GRA MANIFOLD ABSOLUTE PRESSURE SENSOR BLK BLK BLK/RED TAN T A N BLK/WHT PPL WHT/BLK - COOLANT TEMP SENSOR r ^ r Hi: BLK YEL GRA BLK/RED ORN BRN SPLICE LT GRN _ G R A LT GRN G R A DK BLU DK BLU BLK ORN BLK LT BLU/ORN MANIFOLD ABSOLUTE TEMP. I I BLK/RED T A N REDUNDANT YEL BLK/RED TAN ---- \ BLK/WHT SPLICE YEL BLK/WHT SPLICE TAN SYSTEM BLK/WHT - OXYGEN SENSOR PPL PPL -i m POWER STEERING ANTICIPATE SWITCH LT BLU/ORN LT BLU/ORN BLK/WHT BLK/WHT ELECTRONIC CONTROL M O DULE (E C M )-IN P U T S ( L N 8-4 CYL.) SECTION F-PAGE l/p JUNCTION BLOCK LT BLU/ORN

403 BLK BLK SPLICE BLK BLK BLK/RED TAN GROMMET BLK BLK/RED TAN TAN T A N WHT/BLK PPL WHT/BLK BLK/WHT PPL WHT/BLK SYSTEM CHECK LP ORN ORN BRN LT GRN BRN LT GRN - PARK/ NEUTRAL SW G R A DK BLU ORN LT BLU/ORN VEL BLK/WHT G R A DK BLU ORN LT BLU/ORN YEL BLK/WHT - SPLICE 440 TO OIL PRESS SW WHT/BLK ORN TO ECM BLK/WHTl/P 3 0 WAY CONN TO FUEL PUMP RELAY E «3 4 [«5 ; ] 1<56 m e (H E BLK/WHT- i n l2 0 f LT BLU/ORN - f BRN- i WHT/BLK i ORN ORN- N * i T If) * G H J K I A.L.D.L CONN & SEAL ASM «A <0 * X i CO CO in NEUTRAL PARK SW (AUTO ONLY) BLK/WHT BLK/WHT BRN- tc O 00 SPLICE WHT/BLK ORN * - i CO X g TO AUDIO BUZZER ^ ALARM TO TCC BR SW (AUTO ONLY) w 00 «- T- t rt in IGN/GAUGES 20 AMP ECM B 10 AMP TO ALTERNATOR TO l/p CLUSTER CONNS BLK/WHT BRN- (9 IB [D S 0 0 VEHICLE SPEED SENSOR SPLICE 39 a SI 0 8 IS B 0 (B S [Q CQ E (3 ATT tgm ACC IPS PWfl m n r i SHUNTS SHUMTS 30 ICIR/BRK Twrscr tgmgaugcs AUXHTft f20a (~20a1 [ 2 ^ 1 R i" y W c w w i? ;1 r» n PNK/BLK 0 [ H ] q a 0 FRONT ORN- r-aaaa-i O U) * FUSE BLOCK 03 n PNK/BLK- s z g f c a S S 'S REAR YEL LT BLU/ORN LT GRN DK BLU GRA I I I* } r r i. T O f7»7 i 4i n ' 3 ^ «3,4E3- n 4<7 l«f440[ STARTER ELECTROIMIC CONTROL M ODULE (E C M )-IN P U T S ( L N 8-4 CYL.) SECTION F-PAGE 25

404 IDLE AIR CONTROL TRANSMISSION CONVERTER CLUTCH SOLENOID ^ < m ««2 j4 «3 «4 4 ^ TAN/WHT PPL TAN/BLK LT GRN/BLK LT GRN/WHT LT BLU/BLK LT BLU/WHT WHT PPL/WHT TAN/BLK BLK/RED GRA GRA PNK PNK OIL PRESSURE TRANSDUCER INJECTOR DK BLU RED ORN TAN---- REDUNDANT BLK/WHT DK BLU RED BLK/WHT ORN TAN TAN/WHT PNK/BLK PNK/BLK- OIL PRESSURE SWITCH DK GRN DK GRN/WHT RED LT GRN DK GRN DK GRN/WHT RED LT GRN DK GRN/WHT DK GRN/WHT DK GRN/WHT PNK/BLK DK GRN DK GRN/WHT - FUEL PUMP RELAY ORN ORN TAN/WHT BLK/WHT A/C COMPRESSOR CONTROL RELAY RED LT GRN DK GRN/WHT - FUEL PUMP PRIME F z «00 i y 120 fl TAN/WHT - SPLICE ,120-8 TAN/WHT TAN/WHT TAN/WHT LOW PRESSURE SW ELECTRONIC CONTROL MODULE (E C M )-O U T P U T S ( L N 8-4 CYL.) SECTION F-PAGE ENGINE pbscqhh FUEL METER BLK

405 TAN/BLK TO ECU TO TCC BRAKE SW (AUTO ONLY) TO AUDIO BUZZER ALARM TO A/C COMPRESSOR ELECTRONIC CONTROL M ODULE (E C M )-O U T P U T S ( L N 8-4 CYL.) SECTION F-PAGE 27

406 SECTION F-PAGE 28

407 CIRCUIT NO. WIRE SIZE COLOR CAVITY DESCRIPTION CIRCUIT NO. WIRE SIZE COLOR CAVITY DESCRIPTION DK G R N /W H T A1 FUEL PUMP RELAY DRIVE * T A N /B LK A 2 TORQUE CONVERTER CLUTCH * T A N /B LK A 2 UPSHIFT M A N -O N L Y GRA A 3 EGR SOLENOID A 4 NOT USED BR N /W H T A 5 SYSTEM CHECK LAM P PNK/BLK A V IGNITION FUSED A 7 NOT USED ORN A 8 SERIAL D A T A W H T /B LK A 9 ASS Y LINE LIN K/D IAG BRN A 1 0 SPEED SENSOR BLK A V RETURN B B LK /W H T A 1 2 SYSTEM RETURN ORN B1 1 2 V BATTERY FUSED T A N /W H T B2 ELEC FUEL PUMP FUSED FEED BLK/RED B 3 DISTRIBUTO R REF LO W B4 NOT USED PPL/W H T B5 DISTRIBUTOR REF HIGH B6 B7 B8 B9 NO T USED NOT USED NO T USED NOT USED A ORN/BLK B 1 0 PARK/NEUTRAL SW ITC H A A U T O TRANS ONLY * M A N. TRANS O NLY h C A V IT Y A 2 B11 B 1 2 NOT USED NOT USED C1 NOT USED C 2 NO T USED LT GRN/BLK C 3 STEPPER COIL B LO W LT G R N /W H T C 4 STEPPER COIL B HIGH LT BLU /W H T C5 STEPPER COIL A HIGH LT BLU/BLK C 6 STEPPER CO IL A LO W C 7 NOT USED LT BLU/ORN C 8 PWR STRG C U TO U T SW PPI C 9 C RANK DISCRETE FUSED YEL C 1 0 C O O LA N T TEMPERATURE LT GRN C11 M A N IFO LD ABSO LUTE PRESS TAN C 1 2 M A N IFO LD AIR TEM P SIG N AL DK BLU C 1 3 THR O TTLE POSITION SENSOR GRA C V SENSOR REFERENCE C 1 5 NOT USED ORN C l V BATTERY FUSED B LK /W H T D1 SYSTEM RETURN BLK/RED D 2 5 V SYSTEM RETURN A D 3 N O T USED W H T D 4 HEI SPARK TIM IN G T A N /B LK D 5 HEI BYPASS TAN D 6 O XYGEN SENSOR LOW PPL D 7 O XYG EN SENSOR HIGH D 8 N O T USED BLK D BLK D 1 0 D 11 NOT USED D 1 2 NOT USED D 1 3 N O T USED D 1 4 N O T USED D 1 5 NOT USED DK BLU D 1 6 INJECTOR A DRIVE ELECTRONIC CONTROL M ODULE ( L N 8-4 CYL. TBI) SECTION F-PAGE 29

408 THROTTLE POSITION SENSOR h I BLK D K BLU ' G R A MANIFOLD ABSOLUTE PRESSURE SENSOR BLK BLK B LK/R ED BLK/R ED L T G R N /BLK L T G R N /BLK B LK W H T /B L K D K BLU D K BLU G R A G R A COOLANT TEMP SENSOR c ^ m ^ 52 A ; 5 > YEL B L K PN K /B LK BLK BRN YEL O RN/G RN P N K /B LK BLK B L K /W H T F C p SENSOR L.H. REAR CYL. HEAD PPL O RN B L K /W H T D K BLU z ce a <0 00 * E.S.C. HYBRID FUNCTION 12V IGN. FUSED SPARK RETQARD 48S E.S.C. _ E.S.C. SEN. INPUT PN K /B LK ' BLK * -I m P x 5 GO in 5» CO ift c z c O W H T /B L K B L K /W H T BRN D K l5 s 3 E H le 3 [H 3 f BRN ORN OXYGEN SENSOR c PPL l l ] t ] p 2 0 l l [436 f s T I E l/p JUNCTION BLOCK l/p 3 0 WAY CONN ELECTRONIC CONTROL M ODULE (E C M )-IN P U T S ( L B 4 - V 6 ) SECTION F-PAGE ORN

409 WHT/BLK M M t t t M 1111 H - TO ECM WHT/BLK BLK/WHT BRN ORN ORN ELECTRONIC CONTROL M ODULE (E C M )-IN P U T S ( L B 4-6 CYL.) SECTION F-PAGE 31

410 IDLE AIR CONTROL- INJ. ACTUATOR OPENS IN 4TH GEAR ' ---- OPENS OS TRANSMISSION CONVERTER CLUTCH SOLENOID TAN/BLK LT BLU LT GRN/BLK LT GRN/WHT LT BLU/BLK LT BLU/WHT WHT PPL/WHT TAN/BLK DISTRIBUTOR WHT BLK/RED WHT OIL PRESSURE SW ITCH FUEL PUMP BACK UP TAN/WHT ORN RED DK GRN TAN/WHT ORN RED BLK/WHT TAN/WHT DK GRN DK BLU DK BLU GRA GRA BRN BRN WHT DK GRN ESC HYBRID - FUNCTION BLK/WHT REO L.H. REAR CYL. HEAD ORN DK BLU BRN BRN DK GRN/WHT INJ EGR SOLENOID n f i rr * IL IS PNK/BLK GRA BRN FUEL PUMP RELAY FUEL PUMP PRIME r TAN/WHT SPLICE 120 FUEL METER ORN ORN TAN/WHT BLK/WHT TAN/WHT TAN/WHT BRN ELECTRIC AIR CONTROL SOLENOID PNK/BLK - SPLICE 39 TO ALTERNATOR L.H. REAR CYL. HEAD 'I BLK E LECTR O N IC C O N T R O L M O D U LE (E C M )-O U T P U T S ( L B 4-6 C Y L.) SECTION F-PAGE 32

411 BLK/WHT GRA , TO ECM 30.5 PNK ELECTRONIC CONTROL MODULE (E C M )-O U T P U T S ( L B 4-6 CYL.) SECTION F-PAGE 33

412 SECTION F-PAGE 34

413 CIRCUIT NO. WIRE SIZE COLOR CAVITY DESCRIPTION CIRCUIT NO. WIRE SIZE COLOR CAVITY DESCRIPTION DK G R N /W H T A1 FUEL PUM P RELAY DRIVE A 2 A 3 NOT USED NOT USED GRA A 4 EGR/EFE B R N /W H T A 5 SYSTEM CHECK LAM P PNK/BLK A V IGNITION FUSED * T A N /B LK A 7 TORQUE CONVERTER CLUTCH * T A N /B LK A 7 UPSHIFT M A N -O N L Y ORN/BLK A 8 SERIAL D A T A W H T /B LK A 9 ASS Y LINE LIN K/D IAG BRN A 1 0 SPEED SENSOR BLK A V RETURN B B LK /W H T A 1 2 SYSTEM RETURN ORN B1 1 2 V BATTERY FUSED T A N /W H T B2 ELEC FUEL PUMP FUSED FEED BLK/RED B3 DISTRIBUTOR REF LO W B4 NO T USED PP L/W H T B5 DISTRIBUTOR REF HIGH B6 NOT USED BLK B7 SPARK RETARD CONTROL DK G R N /W H T B8 AIR CONDITION B9 NO T USED A ORN/BLK B 1 0 PARK/NEUTRAL SW ITC H B11 NO T USED * A U T O TRANS O NLY 1 CAV,TY A2 * M A N. TRANS O NLY ] A A U TO TRANS ONLY B 1 2 NOT USED C l NOT USED BRN C2 AIR SW SOLENOID LT G RN/BLK C 3 STEPPER COIL B LO W LT G R N /W H T C 4 STEPPER COIL B HIGH LT B LU /W H T C 5 STEPPER COIL A HIGH LT BLU/BLK C 6 STEPPER COIL A LO W LT BLU C7 HIGH GEAR C 8 NOT USED PPL/W H T STR C9 CRANK DISCRETE FUSED YEL C 1 0 C O O LANT TEMPERATURE LT GRN/BLK STR C 1 1 M ANIFO LD ABSO LUTE PRESS C 1 2 NO T USED DK BLU C 1 3 THROTTLE POSITION SENSOR GRA C V SENSOR REFERENCE C l 5 NOT USED ORN C V BATTERY FUSED B LK /W H T D1 SYSTEM RETURN BLK/RED D 2 5 V SYSTEM RETURN A D3 NOT USED W H T D 4 HEI SPARK TIM IN G T A N /B LK D 5 HEI BYPASS TAN D 6 OXYGEN SENSOR LO W PPL D 7 OXYG EN SENSOR HIGH D 8 NOT USED D9 NOT USED D 1 0 NOT USED D11 NOT USED D 1 2 NOT USED D 1 3 NOT USED DK GRN D 1 4 INJECTOR B DRIVE D 1 5 NOT USED DK BLU D 1 6 INJECTO R A DRIVE ELECTRONIC CONTROL MODULE ( L B 4-6 CYL. TBI) SECTION F-PAGE 35

414 TCC BRAKE SW TAN/BLK * la * (O "1 G H J K L M A.L.O.L. TRANSMISSION CONVERTER CLUTCH DETENT SOLENOID (AUTO ONLY) SECTION F-PAGE 36 FUSE BLOCK

415 INST LP 8 GRD REAR A/C SW ITCH BLK BRN REAR AIR CONDITIONING (RPO CG9) SECTION F-PAGE 37

416 SHEET M ETAL n n i im n RED COMPRESSOR ELECTRONIC CONTROL MODULE CONNECTOR AIR CONDITIONING (L N 8-4 CYL.) SECTION F-PAGE CONN & SEAL ASM

417 SHEET METAL, -(5 * 2 a - ^ COMPRESSOR 6 9 * * w 152 I DIODE DK GRN BLK -3.0-BLK 152 TO RH HEAD TO RH PARK & DIR TO W WASH PUMP PPL DK GRN/WHT l/p JUNCTION BLOCK BLKl152l r 52 cs LiOt l/p 3 0 W A Y s \ CONN f Q \ B B BLOWER MOTOR GROMMET 59.8 DK GRN/WHT j n ^ i «i EH)3 EID *EEI «1«3 _ ED EED {*43 7 j " E E»E=]!X i ELECTRONIC CONTROL MODULE CONNECTOR BLOWER SWITCH a O " l b [T J j 3 5 f T T 3 0 R ~ U J I ~ 1 f i H i n 450 J "1 l422l Lf.Hl Z D C Z 1 IR e ] 439 II li5 ] l4 6 5 [59_) l 42p l 422] H 39 44p l58 495] FRONT FUSE BLOCK LT GRN TAN ORN LT BLU YEL CONN & SEAL ASM AIR CONDITIONING (L B 4-6 CYL.) SECTION F-PAGE 39

418 J e -p BLOWER MOTOR HEATER BLOWER SWITCH RH HEADLAM P BLK RH PARK LA M P O IB S) EE) B B QD BD IB 00 CD H E E) B WO SI i 0 0 S ID IB ATT MM ACC m W O G ^3 [ M ] f h m t O ' a 0 FUSE BLOCK HEATER SECTION F PAGE CONN & SEAL ASM

419 AUXILIARY HEATER CONTROL SWITCH 1 VACUUM SOURCE 2 LO. MED & HI PORT 3 HI PORT C " I S z cc O X 5 S 9 cn cn e-i if) BRN WHT LT BLU YEL. 8.8 GRA BRN GO > -J > _l _ g (si N N 9» N r *? O 10 N lo O pj «-*«-«l/> ' t- i - r - r - O It) CN REAR AU XILIAR Y HEATER BLOWER MOTOR GRA 8.8 GRA BRN FUSE BLOCK K A R AUXILIARY HEATER (RP0 C36) SECTION F-PAGE 41

420 I/P CLUSTER CONN EL Q D -jczdneed L g n g H s i u r m n n qdudi E s l/p CLUSTER CONN (ELECTRONIC CLUSTER ONLY) 5? < < ia t <n «*> c c I! a E 2 U G D 11 ( H a 0 (Z C j ill >» 7 S s Z < 33.5 TAN/WHT m V SPLICE 33 l/p CONN BODY CONN PARKING BRAKE WARNING SW. IGNITION SWITCH 33.5 TAN/WHT 33.5 TAN/WHT ED TAN/WHT BRAKE PRESSURE WARNING SW CONN & SEAL ASM BRAKE WARNING SYSTEM SECTION F-PAGE 42

421 ILLUM ILLUM ILLUM ILLUM ILLUM CHECK U 2 0 / S ' g / / 60 a > ENGINE BRAKE 10 / / 4 0 / / 20 MPH I I KM/H UNLEADED FUEL ONLY B E < *JF 0 0 RADIO POWER INSTRUMENT PANEL S (TELLTALE) SECTION F-PAGE 43

422

423 l/p CLUSTER CONN. INSTRUMENT PANEL S (ELECTRONIC) SECTION F-PAGE 45

424 INSTRUMENT CLUSTER TELL TALE S ILLUMINATION BULBS REQUIRED: 9 WITH AUTO TRANS 8 WITH MAN TRANS IGNITION/GAGES 2 0 AMP l/p JUNCTION BLOCK l/p 3 0 W A Y CONN B B S 'S I S Z 9 K 3 O j E M 4 5 l j P 4 i r 7 ^ i r 3 3 ) [ 3 i i ; 3 0 a ^ 4 9 s FH H i T l l 25 [ 30 3" [ ~ z 461 [456 iz Q * ![ S a EH) 4 6 s / PNK i i q ntoht FUSE BLOCK PNK- D B B^S I PNK/BLK REAH B S BLK BLK- O INSTRUMENT PANEL GAGES (TELLTALE) SECTION F-PAGE l/p CONN & SEAL A S M

425 ILLUM ILLUM ILLUM TEMP BATT ILLUM f -1 8 [ T ] l Q BRAKE SERVICE ENGINE SOON RIGHT TURN LEFT TURN 3 0 ~ ) 419] 3 9 I P I O ' INBOARD U d D n D II C u t a ID OUTBOARD HIGH BEAM OIL 0 0 AUTO TRANS. 1 2?!LY I ILLUM * -J CD X 5 u> n * m t J D n E i l L O E In G E ] i q d U q d QD > 9 r UPSHIFT 1. MANUAL TRANS. O N LY j PNK/BLK -.T O l/p CLUSTER CONN (INBOARD) SPLICE 39 TO l/p CLUSTER CONN (OUTBOARD) TO ALT TO AUDBUZZ ALARM TO VSS - TO TCC BRK SW. TO HD LP SW LP SKT 30-.5P N K BLK- SPLICE 150, AUD BUZZ ALARM CONV. CENTER. HD LP SW LP SKT I l/p CLUSTER CONN (OUTBOARD) [ RADIO FEED. A/C HEATER CONTROL LP PANEL/INTERIOR LPS CONTROL SW INSTRUMENT PANEL GAGES (TELLTALE) SECTION F-PAGE 47

426 COOLANT TEMPERATURE TRANSDUCER OK GRN COOLANT z' TEMP SENSOR TEMP SW WHEN ENG COOLANT TEMP BECOMES TOO HIGH SW CLOSES IREF) ( f i r ) 1 ^ ' i Ct DK GRN 6 CYL. ONLY C l ID OIL PRESSURE TRANSDUCER (WITH GAGES) OIL PRESSURE SW ITCH (WITHOUT GAGES) INSTRUMENT CLUSTER GAGE VERSION OIL ^ PRESS I 4^00)31 IGNITION/GAGES 2 0 AMP FUEL METER l/p JUNCTION BLOCK l/p 3 0 W A Y CONN I g g FRONT FUSE BLOCK REAR f 120 ] GENERATOR L1SL ^ V 7^= B = 3 ^= ^ 6 fc= PNK T AN D K G R N PNK/BLK BLK PNK T A N DK GRN PNK/BLK BLK *6 INSTRUMENT PANEL GAGES (GAGE) SECTION F-PAGE l/p CONN & SEAL ASM

427 ILLUM ILLUM ILLUM RIGHT TURN LEFT TURN PNK/BLK PNK TAN DK GRN PNK/BLK BLK IGNITION SW ITCH - ± r LPS CONTROL SW INSTRUMENT PANEL GAGES (GAGE) SECTION F-PAGE 49

428 BRN/WHT TAN/BLK CONVENIENCE CENTER l/p JUNCTION BLOCK»- I i _ z c < If) LO 0) <0 IS> 0 EEDEElEIzlOs] ID Q D G D Q D G E ] ~ q m DC E m E m Em n q [ ~ r ~ [ I E E m E m c j CD Z a. d> 25 I 39 l l Z O M I GENERATOR i/ p INDICATOR S (TELLTALE) SECTION F-PAGE 50

429 ILLUM ILLUM ILLUM ILLUM ILLUM ILLU M TE M P B A T T ILLU M qqq& l ~39~ [ E ir ic 3 [ U ln Q l] [ ] BRAKE SERVICE ENGINE SO O N RIGHT TURN SEAT BELT LEFT TURN " u z n z u 1 'O D D 3 IN B O A R D 3 O U T B O A R D H IG H BE A M OIL BRN/W HT B R N - ILLUM c 2 a c m j D n 0 r U P S H IF T 1 TO VSS - TO TCC BRK SW TO HO LP SW LP SKT PNK/BLK PNK/BLK----- A/C HEATER ; CONTROL LP PANEL/INTERIOR LPS CONTROL SW BLK BLK BLK AUTO TRANS I ONLY : RADIO FEED SPLICE 150 SPLICE t ea 00 CO PNK/BLK BLK BLK- >- in n ri cn CONN t TO LH TURN B R N - * _i m s s Z Z < < H I- if ) if) p n O D U Q II [ 3 3 ] > l/p CLUSTER CONN TO BRAKE S TO COOLANT ' TEMP TRANSDUCER z cc * CD z < <0 If) cc 00 CO. M A N U A L T R A N S. I O N L Y BAT ^ BA1 2 i 2 1 m IGN ACC I 3 I f 3 Q 0 llg N 3 BAT 3 CD G RD 1 H s t G RD 2 n n i 3f> Y E L DK BLU LT BLU BRN/WHT T A N /B L K BRN PNK/BLK BLK TO HI BEAM HEAD LT G R N -... I c u DIMMER SW ITCH r IGNITION SW ITCH - i - START RUN OFF LOCK ACC. INDICATOR S (TELLTALE) SECTION F-PAGE 51

430 BR N /W H T CONVENIENCE CENTER TA N /B LK l/p JUNCTION BLOCK < h I» ^ m i Z D Q E ] Em Em 3 G D C 2 D C Z : 4 9 & I «4 I [46511 I I * m I r ~ r H i i n f l U h GENERATOR 3 ; i i i i / it i t L i>! X i/ p INDICATOR S (GAGE) SECTION F-PAGE CONN & SEAL ASM

431 ILLUM ILLUM ILLUM ILLUM RIGHT TURN 0 LEFT TURN SEAT BELT.SERVICE 1 ENGINE SOON dsxb I 8 I I I 1 15 I l237l I 39 I I I I I cm H a n D D HE]nUE\ [ M I OUTBOARD HIGH BEAM r ' UPSHIFT INBOARD f TEMP V / BRAKE PNK/BLK PNK/BLK - A/CHEATER ; CONTROL LP PANEL/INTERIOR LPS CONTROL SW BLK BLK- TO VSS TO TCC BRK SW TO HD LP SW LP SKT HD LP SW [LP SKT ; RADIO FEED SPLICE 150 SPLICE m m PNK/BLK BLK BLK- D 00 3 j CO TO RH TURN BRN/WHT-. f i f t I > '4 15 Q D f O i 4 i 9 ) p n HE GDI l/p CLUSTER CONN 3 3 CD fid t TO LH TURN BRN- d) if) if> BRN- S. F 7 V. Q H X z Z < < ir> in GE n E E U e u c d l/p CLUSTER CONN TO BRAKE S TO COOLANT ' TEMP TRANSDUCER z cc 00 CD z < cc ca O i I BA 7 3 m GRD 1 O B i 3rd * r m MANUAL I TRANS BATT f ig N BLK YEL DK BLU LTBLU BRN/WHT TAN/BLK LT GRN - I z cc C3 c START RUN OFF LOCK ACC BRN PNK/BLK BLK TO HI BEAM HEAD IE n n J T \ DIMMER SW ITCH IGNITION SWITCH INDICATOR S (GAGE) SECTION F-PAGE 53

432 BRN BRN/WHT- BUJ/tR (O CONVENIENCE CENTER G* ]' E 3 CHEI2CZD. r ^ r ^ n! * E 3 < 301 b I l«l»» 1» n I I E H 5 t 5 3,E H } " E H,zE5 ZL. X m HAZARD FLASHER ( 5 1,,, DIRECTIONAL FLASHER BLK BLK 27.8 BRN- DIRECTIONAL SIGNAL SW ELECTRONIC CONTROL MODULE CONNECTORS 38.8 DK BLU PPL a > 0 ' f J5 1 [ ***1 r l* i * l* * 3l 1***1 E l J E 3 6 E * 3 E I D 1 1» E E 3 AUDIO BUZZER ALARM ORN- DIGITAL RATIO ADAPTOR _0 CL ORN E H 9 S 3 ( Z E U E u D i i - r ^ i «E 3 0, 3 E I D 46g 1«[7l6] H I A D L A M P IG N IT IO N K Y B A T U R Y G R O U N D S A F E T Y B U T L A M P B J9 i f »U E h * [440 S A F t TY B U T B U l l f R -238, r LT BLU/BLK PNK/BLK PNK/BLK PNK/BLK BLK BLK BLK INST 10 AMP FRONT REAR PNK/WHT PNK/WHT YEL OK BLU LT BLU BRN GENERATOR INDICATOR S (ELECTRONIC) SECTION F-PAGE LT GRN BRN/WHT PPL/WHT STR BRN PNK/BLK BLK PNK/WHT PNK/WHT T A N

433 RIGHT TURN HIGH BEAM CHECK ENGINE -j d m { ] TRIP SWITCHES 00 #» < r* eg «- r eg l/p CLUSTER CONN r _ r ORN LT BLU/BLK TO PARK BRAKE SW TO RH TURN TO TCC BRK SW 39-8 PNK/BLK TAN/WHT PNK/BLK i r M 1- -n l -*Ll±J ic m 1 I 5 1 Ifisl 1 H ORNl/P CLUSTER CONN BRN/WHT LT B LU - 10 * LT BLU LT GRN BLK TAN/WHT- TO LH TURN TAN LT BLU/BLK- FROM FUEL METER & PUMP * * -I -1 CO CC flo t : [55«J e h I m 3 u n i n n HHI 0 *3 F *q1 QtbJ 35p 3S0 m C D C 3 C D p i s l _ l s Q D E l I~3i1 Q l I 35 n j 35p GED a EED QUO n Fsl l Q s t e! TRIP. READOUT TRIP READOUT OIL PRESSURE FUEL ALTERNATOR COOLANT TEMP TO ELECTRONIC CLUSTER PNK/BLK PNK/BLK A/C HEATER CONTROL LP PANEL/INTERIOR LPS CONTROL SW SHIFT INDICATOR BLK BLK BLK YEL DK BLU LT BLU PNK/BLK PNK/BLK BLK LT GRN BA TAN/W HT DK GRNhuul in m GHD BRN/WHT BRN PNK/BLK BLK PNK/WHT PNK/WHT TA N TO HI BEAM HEAD DIMMER SW ITCH IGNITION SWITCH - ± - INDICATOR S (ELECTRONIC) SECTION F-PAGE 55

434 FUSE BLOCK AUDIO BUZZER FRONT DOME. REAR DOME LAM P LEFT HAND DOOR JAM B SWITCH DOME S SECTION F PAGE

435 E N T ' ^ BLK WHT I FRONT READING S "1 ze O ia i l 40.8 ORN t- x s WHT----- c m /i f N FRONT DOME S 00 >* ORN 1 i * REAR READING S BLK ORN z tc 2 m z g < SPLICE 150 V BLK BLK FRONT DOME (WITH READING S)!* 111 UU llu WHT BLK ORN (N m «in. u u u u FROM RH FRT DOOR STEPWELL L P ^ CONN FOR CONTINUATION OF ROUTING. --- SEE LIGHTING PACKAGE RPO TR9 PG# FROM ---- SPLICE 40 FROM SPLICE 156 FROM * RH FRT DOOR STEPWELL LP CONN BODY FOR C O N TIN U ATIO N OF ROUTING. SEE LIGHTING PA C K AG E R P 0 T R 9 P G # FROM RH FRT DOOR STEPW ELL L P ^. CONN FROM SPLICE 40 FROM SPLICE FROM * RH FRT DOOR STEPW ELL LP CO NN BODY LIGHTING PACKAGE (RPO C95) LIGHTING PACKAGE ROOF CONSOLE (RPO D K 6) SECTION F-PAGE 57

436 r GRA,rJUU'i CIGARETTE LIGHTER (B a i m b m je L.fl) (g) E Bj OD < cc 00 cb SHUNT* SHUNTS CD (8 ID 09. «N ACC ORN n * OB GO 0) c O HORN DM 20 AMP ^ '1 mm M am 3 n im w t aukmtr UiTp»»3 r n, r» h * i R s 3 IcwSfcml R ip ICW) MM «K>0 FUSE BLOCK Q E z 9 D S S ' S K A R SPLICE 40 TO BUS BAR j i s f l ORN ORN BLK 39.8 PNK/BLK BLK l/p CONN SPLICE BLK 8.8 GRA z CC Z K I O 00 > m ^.J CD 00 O t (9 00 TO RH FRT DOORJAMB SWITCH I ORN TO PANEL & INTERIOR LPS CONTROL SW >e m 4 O q 2 5 s < 00 O 00 * _J tt 00 U T T - j CO TO SAFETY BELT WARNING BUZZER ad CD 8.8 GRA SPLICE GRA 1206S d) BLK SPLICE GRA BLK BLK CONVENIENCE TRAY LIGHTING PACKAGE (RPO TR9) SECTION F-PAGE GLOVE BOX ASH TRAY CIGARETTE LIGHTER 150^ BLK 8-8 GRA ----

437 SLIDING SIDE DOOR STEPWELL LP. DOME REAR REAR DOOR JAMB SWITCH LEFT HAND DOOR JAMB SWITCH LIGHTING PACKAGE (RPO TR9) SECTION F-PAGE 59

438 9.8 B R N ORN RIGHT REAR TREBLE SPEAKER RIGHT REAR IN-DOOR SPEAKER ANTENNA L T B L U DK BLU c J L L Q t j REAR SPEAKERS SQ Qs H K 8 D f ID 0" * FRONT I J SPEAKERS 0 OB A C < M E -0 0, RADIO SQa 1 POWER RADIO RECEIVER YEL LEFT REAR IN-DOOR SPEAKER RADIO (RPO UU9, U M 7, U M 6, UX1) SECTION F-PAGE 60 FRONT FUSE BLOCK REAR LEFT REAR TREBLE SPEAKER

439 RIGHT FRONT SPEAKER cc 00 A;C HEATER CNT LP AUD BUZZER ALARM TAN G R A DK GRN I IP CLUSTER SPLICE LT GRN GRA BLK - SPLICE BLK- RADIO RECEIVER CONV. CTR CONN & SEAL ASM INST PNL I PS HD LP SW LP 8.5 GRA - 2 < < S 00 CO r- CD,, l/p (Q ) $ 3J 0 B a 0 0 ts a 0 a ai h a "Y ' a a a e a a a [M ] 6 3. SO!H3 K ] K i EM] cpc u LEFT FRONT SPEAKER K l K ] Q n c FRONT FUSE BLOCK REAR RADIO (RPO U 63, U69) SECTION F-PAGE 61

440 WITH POWER MIRRORS ONLY RPOD48 WITH POWER DOOR LOCKS ONLY RPO AU3 HT TAN DK BLU/WHT PNK TAN DK BLU/WHT PNK R.H. WINDOW SWITCH / T f D O DK BLU. D Q / BRN R.H. WINDOW MOTOR TO BUSS BAR BLK k in SPLICE 150 SPLICE 76 s 3 i m at ci ID <0 «N OPENING CLOSING NORMAL FUNCTION FUNCTION POSITION O - F C J 5 - F - c > - c g ^ c c > - C # - A ~ A 1 - a a i- ^. a F F ^ F JI B s u s s t a l!! l a t i E * Ocj r A J g Z X J AC A L.H. WINDOW SWITCH \ O B A h V IB QB {DIB 09 ( (D a n i 0 t ( d IB 9 (D 0 IB (D SI tft «* KC tm PM Aumti mmnt} Pm 3 (0 Q O Z < O csi * _J CD O 3: A 0 - F <^F F O -F O b - E Cs P r" E e C J» ~ r "» > - a A OPENING CLOSING NORMAL FUNCTION FUNCTION POSITION l J BLK PNK FUSE BLOCK DK BLU/WHT TAN L.H. WINDOW MOTOR CIRBRKR 30 AMP AUTO RESET POWER WINDOWS (RPO A31) SECTION F-PAGE BRN DK BLU

441

442 282.2 YEL ' LT BLU FRONT TILT MOTOR LT GRN TAN ---- I fem c ir cet u it 284 2J BREAI BREAKER q H i 1 FORE/AFT UP/DOWN MOTOR TO BUS BAR >150.3 BLK 60.3 ORN/BLK BLK ORN/BLK > eg D - j a z DC CP CN DK GRN DK BLU REAR TILT MOTOR E O H O G X B FRONT TILT SWITCH FORE. AFT, UP. & DOWN SWITCH REAR TILT SWITCH (S HI Q] 0 (0 E IS S) 13 d) fcatt n - n s h u n t s Q B i Q i >c< « Q tw * c c ip s M m acc 2 0 A r POWER. ACC S 30 AMP CIR BRK ( J > - F O - F 9 - DOWN UP NORMAL FUNCTION FUNCTION POSITION - _ f- C f < f- - F - f - ^ n n f-o < p c. < C c ^ «c - C J ~ < U D - 4 a D 4 5 D,^ D' ^ 3 - F-O F - - ^ C D c - «* I 3 c - «^ ^ ) c. ^ P 5 c - ^ C " 1 - b «^ E 3 B b h A J ) - F -O F -t» F ^ - F - O F F -O - A A NORMAL DOWN UP POSITION FUNCTION FUNCTION G ] [ p ] TMM *U HTRA C B ] s can w*n tp HA F-O F-O F-O NORMAL DOWN UP AFT FWD POSITION FUNCTION FUNCTION FRONT FUSE BLOCK NEAR POWER SEAT (RPO AC3) SECTION F-PAGE 64

443 39 8 PNK/BLK AUDIO BUZZER ALARM HEAD IGNITION KEY BATTERY GRQUNO SAFETY BELT SAFETY BELT BUZZER IGN/GAUGES 20 AMP CD BLK/GRA SEAT BELT RETRACTOR SWITCH SEAT BELT WARNING BUZZER SECTION F-PAGE 65

444 \ h ~ n _ L-D U.889! 82, M3 UP DOWN RIGHT LEFT R.H. MIRROR SWITCH >81-.5 WHT LT GRN 88.5 YEL BLK 82-5 LT BLU PPL/WHT RED/WHT 1 im f i i l reel la HI eeti eaeb teg W HT LT GRN YEL LT BLU PPL/WHT RED/WHT X -J a > -* Sf > mi nt e i I ih u c _ r i LT GRN YEL L.H. MIRROR SWITCH UP M l DOWN LT BLU WHT - MI M2 RIGHT LEFT POWER MIRRORS (RPO D48) SECTION F-PAGE 66

445 VISOR VANITY MIRROR 40.5 ORN ORN E E Q 0 13 El 0 E E B E S 0 - q \ - f E [D E E l 0 ATT «*» ACC IPS M«fl.» n n n ~ n SHUNTS SHUNTS 10A SsfrTfcr 0 30 C l«brk PWft ACC K l ( M l [ M ] OMGAUGCS AUXHTft $TO? naz G ] [ ] G ] TUMi U NTRAC RACMO R d Es C*»H PW FRONT FUSE BLOCK REAR VANITY MIRROR (RPO D64) SECTION F-PAGE 67

446 WINDSHIELD WASHER PUMP ID B IS ID IS D B BLK -eo h SHEET M ETAL WIPER WASHER. DIMMER SW. (COLUMN MOUNTED) CONN & SEAL ASM WIPER/WASHER SECTION F-PAGE 68

447 WINDSHIELD WASHER PUMP TO RH HEAD TO RH PARK PARK SW SPLICE 152 PULSE WIPER MOTOR BLK SHEET METAL ORN GRA 93 8 WHT PULSE WIPER, W ASHER/DIMMER SW (COLUMN MOUNTED) PULSE HIGH LOW 92.8 PPL 94.8 PNK D! Ctl CONN & SEAL ASM PULSE WIPER/WASHER (RPO CD4) SECTION F-PAGE 69

448 B 0 B ' Y 00 O l (S U) CD B (D E ATT «GN ACC IPS. i rn n SHUNTS SHUNTS * a IGN/GAUGES * 20 AMP (Jin Ril [20*1 rftl V c s y ^ g 1 t e r 1 [Si K) CRUISE SERVO FRONT BLK FUSE BLOCK SPLICE 150 REAR LT GRN BLK CRUISE CONTROL MODULE VENT V IV. VAC. V IV EC a DK BLU/WHT TAN LT BLU/BLK GRA f i p p p -? O H PNK/BLK Z a * 402* ISO- 87* VENT VALVt COMtnOi VAC 8CMVO 8ENVO. CMME ENGAGER SMf CRUISE CONTROL ACTIVATOR CRUISE SERVO I ~ BLK < cc 00 * < cc <D > CO GRA 84-39' S/C O H I R/A M O V VENT C VLV y j* * C VAC > V lv CONN & SEAL ASM VEHICLE SPEED SENSOR YEL 400- CRUISE CONTROL (RPO K34) SECTION F-PAGE 70 CONTACTS CLOSED WITH PEDAL AT REST MANUAL TRANS. ONLY AUTO TRANS. ONLY 397 BRAKE SW BRAKE SW GRA/BLK BRN BRN GRA GRA 87-8 GRA/BLK G R A G R A I J YEL BLK DIGITAL RADIO ADAPTER WITH ELECTRONIC INSTRUMENT CLUSTER ONLY

449 R.H. SIDE MARKER BACKUP LAM P SW ITCH (AUTO TRANS.) TAIL R.H. BACKUP LAM P S t t Fs z tr BLK GROMMET I MAN TRANS l/p JUNCTION BLOCK r " ] SPLICE 151 r LICENSE BLK ' R.H. LAM P 24.8 LT GRN SPLICE BLK Q ) R.H. LAM P SPLICE I GROMMET L.H. BACKUP LAM P MAN. TRANS. AUTO. TRANS. L.H. SIDE MARKER FRONT FUSE BLOCK NEAR BACK-UP S SECTION F-PAGE 71

450 HEAD, PANEL & DOME S SWITCH R.H. TAIL. STOP. & DIRECTIONAL R.H. l/p CONN BODY CONN TO FRONT S SPLICE BRN LICENSE TC PANEL DIMMER SW. z tc t ID ID CD B ID ID CD ID ID ID Q] ATT MM fiuirrl CtSm l M GROMMET L.H. TAIL. STOP, & DIRECTIONAL 9.8 BRN BLK TO L.H. SIDE MARKER FUSE BLOCK TAIL S SECTION F-PAGE 72

451 HEAD. PANEL & DOME S SWITCH TO R.H. SIDE MARKER ^ TO TAIL GROMMET l/p CONN BODY CONN BACK- UPk SIDE» MARKER LP TAIL» SPLICE 151 R.H. TO FRONT S SPLICE 9 - r > B R N- SPLICE 9 LICENSE TO PANEL S DIMMER SW 24 I 158 L 4 0 h a* C -9.8 BRN BLK J - GROMMET CD B S E ffl0 0 '( * O J ED [D (3 G) 0 TO TAIL TO L.H. SIDE MARKER FRONT FUSE BLOCK REAR LICENSE SECTION F-PAGE 73

452 DK BLU BODY CONN SPLICE 18 SPLICE N r-. J 1D WHT DK BLU BRN YEL DK GRN LT GRN B CD * E 01 j A t O) 1F 9.8 BRN DK GRN YEL P TRAILER WIRING ( 0 Q ) [<gj) TO SPLICE 151 c s > DK BLU DK GRN YEL BRN W HT D K BLU AUXILIARY CIR. 1 9 DK GREEN R.H. TURN & STOP 18-Y E LLO W L.H. TURN & STOP 9 -B R O W N TAIL S 2 2 -W H IT E TRAILER W IRING (RPO U 8 9 ) 7 CODE TAPE DK BLU SPLICE 18 p N M L BODY CONN BRN' SPLICE YEL DKG R N LT GRN WHT DK BLUE- 9-8 BRN 24.8 LT. GRN- 22-W H IT E D K BLUE AUXILIARY CIR. 9 -BRO W N TAIL S L T GREEN B/U S 1 9 DK GREEN R.H. TURN & STOP 18-YELLOW L.H. TURN & STOP K J r 222. * CODE TAPE H G F E L AMP FUSE D RED ( _ X e L RED - END OF WIRE UNDER TAPE TRAILER WIRING (RPO UY7) SECTION F-PAGE 74 CONN & SEAL ASM.

453

454 I i CHEVROLET