AIRBAG SYSTEM PRECAUTION RS 1

Transcription

1 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM IRBG SYSTEM PRECUTION NOTICE: When disconnecting the negative (-) battery terminal, initialize the following systems after the terminal is reconnected. 1 System Name Power Window Control System (with Jam Protection Function) Sliding Roof System See Procedure WS-5 1. HNDLI PRECUTIONS FOR IRBG SENSOR In this section, the center airbag sensor, front airbag sensor LH, front airbag sensor RH, side airbag sensor LH, side airbag sensor RH, rear airbag sensor LH, rear airbag sensor RH and seat position airbag sensor are collectively referred to as the airbag sensor. Before starting the following operations, wait at least 90 seconds after disconnecting the cable from the battery negative (-) terminal. (1) Replacement of the airbag sensor (2) djustment of the front doors of the vehicle equipped with the side airbag and curtain shield airbag (fitting adjustment) When connecting or disconnecting the airbag sensor connector, ensure that all of the sensors are installed in the vehicle. Do not use an airbag sensor which has been dropped during the operation or transportation. Do not disassemble the airbag sensor. 2. INSPECTION PROCEDURE FOR VEHICLE INVOLVED IN CCIDENT When the airbag has not deployed, confirm the DTC by checking the S warning light. If there is any malfunction in the S airbag system, perform troubleshooting. When any of the airbag have deployed, replace the airbag sensor and check the installation condition.

2 2 PRTS LOCTION SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM FRONT IRBG SENSOR RH FRONT IRBG SENSOR LH COMBINTION METER SSEMBLY CURTIN SHIELD IRBG SSEMBLY LH (*) STEERI PD S Warning Light FRONT PSSEER IRBG SSEMBLY CURTIN SHIELD IRBG SSEMBLY RH (*) FRONT SET SIDE IRBG SSEMBLY RH FRONT SET OUTER BELT SSEMBLY LH FRONT SET SIDE IRBG SSEMBLY LH FRONT SET OUTER BELT SSEMBLY RH *: with Side and Curtain Shield irbag B113355E03

3 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 3 DRIVER SIDE KNEE IRBG SSEMBLY DLC3 SPIRL CBLE SIDE IRBG SENSOR RH (*) RER IRBG SENSOR RH (*) CENTER IRBG SENSOR SSEMBLY SET POSITION SENSOR SIDE IRBG SENSOR LH (*) RER IRBG SENSOR LH (*) FRONT SET INNER BELT SSEMBLY LH *: with Side and Curtain Shield irbag C145382E01

4 4 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM SYSTEM DIGRM Front irbag Sensor LH Front irbag Sensor RH Steering Pad (Driver Side Squib) Front Passenger irbag ssembly (Front Passenger Side Squib) Side irbag Sensor LH (*1) Driver Side Knee irbag ssembly (Driver Side Knee irbag Squib) Side irbag Sensor RH (*1) Rear irbag Sensor LH (*1) Center irbag Sensor ssembly Front Seat Side irbag ssembly LH (Front Driver Side - Side Squib) (*1) Front Seat Side irbag ssembly RH (Front Passenger Side - Side Squib) (*1) Rear irbag Sensor RH (*1) Curtain Shield irbag ssembly LH (Driver Side Curtain Shield Squib) (*1) Seat Position irbag Sensor Curtain Shield irbag ssembly RH (Front Passenger Side Curtain Shield Squib) (*1) Front Seat Inner Belt ssembly LH (Driver Side Seat Belt Buckle Switch) Front Seat Outer Belt ssembly LH (Front Driver Side Pretensioner Squib) DLC3 Front Seat Outer Belt ssembly RH (Front Passenger Side Pretensioner Squib) Occupant Classification ECU Heater Control Base (Passenger irbag ON/OFF Indicator) *1: with Side and Curtain Shield irbag Combination Meter ssembly (S Warning Light) C145366E01

5 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 5 SYSTEM DESCRIPTION 1. DESCRIPTION OF SUPPLEMENTL RESTRINT SYSTEM (S) General description (1) In this system, the center airbag sensor installed on the floor under the /C unit determines whether or not to activate the S airbags and seat belt pretensioners by receiving the collision signal from the airbag sensors (excluding the center airbag sensor). When there is trouble in the system, the center airbag sensor turns on the S warning light on the combination meter to inform the driver. Description of the dual stage control (1) The center airbag sensor controls the dual stage deployment of the driver airbag in the horn button and the passenger airbag on the instrument panel. The center airbag sensor controls the dual stage deployment of the driver airbag according to the collision impact, seat position and seat belt ON/OFF state. It also controls the dual stage deployment of the passenger airbag according to the collision impact. Description of check mode (signal check) (1) This center airbag sensor can be operated using the check mode of the intelligent tester function. Check mode can detect and output DTC by using the intelligent tester to switch the center airbag sensor to the check mode. simulation method should be used if the malfunction cannot be reproduced during troubleshooting (the malfunction is temporarily solved, etc.). In this case, joggling each connector, or driving on a city or rough road with the center airbag sensor in check mode makes it possible to obtain a more accurate malfunction condition. 2. IGNITION JUDGMENT ND CONDITIONS Operation in case of front collision (1) When the vehicle collides in the hatched area (Fig. 1) and shock is larger than a predetermined level, the airbags (driver and front passenger) are activated automatically. The deceleration sensor of the center airbag sensor determines the need for ignition in response to collisions within the hatched area based on the signal from the deceleration sensor of the front airbag sensor.

6 6 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM (2) Safing sensor of the center airbag sensor is designed to activate at a lower deceleration rate than the deceleration sensor. s illustrated in Fig. 2 below, when both the safing sensor and deceleration sensor go on simultaneously, current flows to the squib and ignition occurs. Center irbag Sensor ssembly Safing Sensor ON Deceleration Sensor ON ND irbag Inflating Fig. 1 Fig. 2 B113360E01 With side curtain shield airbag: Operation in case of front side collision (1) Electronic safing sensor of the side airbag sensor is designed to activate at a lower deceleration rate than the deceleration sensor of the side airbag sensor. s illustrated below, when both the safing sensor and deceleration sensor go on simultaneously, current flows to the squib and ignition occurs. Center irbag Sensor ssembly Safing Sensor ON Deceleration Sensor ON ND irbag Inflating Side irbag Sensor ssembly B113358E01

7 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 7 With side and curtain shield airbag: Operation in case of rear side collision (1) Electronic safing sensor of the center airbag sensor is designed to activate at a lower deceleration rate than the deceleration sensor of the rear airbag sensor. s illustrated below, when both the safing sensor and deceleration sensor go on simultaneously, current flows to the squib and ignition occurs. Front Seat irbag ssembly Deployment Deceleration Sensor ON OR irbag Inflating Rear irbag Sensor ND Electronic Safing Sensor ON Center irbag Sensor ssembly H044425E03

8 8 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 1 VEHICLE BROUGHT TO WORKSHOP HOW TO PROCEED WITH TROUBLESHOOTI *: Use the intelligent tester. NEXT 2 CUSTOMER PROBLEM NLYSIS Confirm problem symptoms (See page IN-26). NEXT 3 S WRNI LIGHT CHECK NEXT 4 CHECK DTC (Present and Past DTCs)* Check for DTC outputs. Result Result DTC is output. DTC is not output. Proceed to B B PROBLEM SYMPTOMS TBLE 5 DTC CHRT NEXT 6 CIRCUIT INSPECTION* NEXT 7 REPIR NEXT

9 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 9 8 CLER DTC (Present and Past DTCs)* NEXT 9 CHECK DTC (Present and Past DTCs)* Check for DTC outputs. Result Result DTC is not output. DTC is output. Proceed to B B Go to step 5 10 CONFIRMTION TEST NEXT END

10 10 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM IRBG SYSTEM: PROBLEM SYMPTOMS TBLE Proceed to the troubleshooting for each circuit in the table below. Symptom Suspected rea See page The S warning light goes off after the primary S Warning Light Remains ON -234 check, but then comes on. With the ignition switch to the ON position, the S warning light sometimes comes on after approximately 6 seconds. The S warning light always comes on even when DTC is not output. With the ignition switch to the ON position, the S warning light does not come on. lthough an S warning light operates normally, DTC or a normal system code is not displayed. lthough terminals TC and CG of DLC3 are not connected, DTC or a normal system code is displayed. S Warning Light Remains ON S Warning Light Remains ON S Warning Light does not Come ON TC and CG terminal circuit TC and CG terminal circuit

11 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 11 TERMINLS OF ECU 1. CENTER IRBG SENSOR SSEMBLY H043423E04 Terminal No. Terminal Symbol Terminal Name 11-1 Side airbag assembly LH (Side squib LH) SFD+ (*1) 11-2 (*1) 11-3 (*1) 11-4 (*1) SFD- ICD- ICD PD+ Side airbag assembly LH (Side squib LH) Curtain shield airbag assembly LH (Curtain shield squib LH) Curtain shield airbag assembly LH (Curtain shield squib LH) Front seat outer belt assembly LH (Pretensioner squib LH) 11-6 PD- Front seat outer belt assembly LH (Pretensioner squib LH) 11-9 DSP+ Seat position airbag sensor DBE+ Front seat inner belt assembly LH DSP- Seat position airbag sensor DBE- Front seat inner belt assembly LH Side airbag sensor assembly VUPD (*1) (*1) (*1) (*1) VUCD ESD ESCD 12-1 P P P- Rear airbag sensor LH Side airbag sensor assembly Rear airbag sensor LH Front passenger airbag assembly (Passenger squib, Dual stage - 2nd step) Front passenger airbag assembly (Passenger squib, Dual stage - 2nd step) Front passenger airbag assembly (Passenger squib) 12-4 P+ Front passenger airbag assembly (Passenger squib) 12-5 D+ Horn button assembly (Driver squib) 12-6 D- Horn button assembly (Driver squib) 12-7 D2- Horn button assembly (Driver squib, Dual stage - 2nd step)

12 12 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM Terminal No. Terminal Symbol Terminal Name 12-8 D DK+ Horn button assembly (Driver squib, Dual stage - 2nd step) No. 1 instrument panel airbag assembly lower (Knee airbag squib) DK- No. 1 instrument panel airbag assembly lower (Knee airbag squib) PBEW Passenger seat belt warning light L Combination meter assembly (S warning light) TC DLC SIL DLC P-B Heater control base (Passenger airbag ON/ OFF indicator) IG2 IG2 fuse (Power source) GSW2 ECM PON Heater control base (Passenger airbag ON/ OFF indicator) E1 Ground E2 Ground SR Front airbag sensor RH SL Front airbag sensor LH SR Front airbag sensor RH SL Front airbag sensor LH 13-4 PP (*1) 13-6 (*1) 13-7 (*1) 13-8 (*1) ICP PP- ICP- SFP- SFP+ Front seat outer belt assembly RH (Pretensioner squib RH) Front seat outer belt assembly RH (Pretensioner squib RH) Curtain shield airbag assembly RH (Curtain shield squib RH) Curtain shield airbag assembly RH (Curtain shield squib RH) Front seat airbag assembly RH (Side squib RH) Front seat airbag assembly RH (Side squib RH) FSP+ Occupant classification ECU Rear airbag sensor RH ESCP (*1) (*1) (*1) (*1) ESP VUCP VUPP Side airbag sensor assembly RH Rear airbag sensor RH Side airbag sensor assembly RH FSP- Occupant classification ECU *1: with Side and Curtain Shield irbag

13 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 13 DIGNOSIS SYSTEM CG SG SIL 1. CHECK DLC3 The ECU uses ISO for communication. The terminal arrangement of the DLC3 complies with SE J1962 and matches the ISO format. BT H100769E98 Symbols (Terminal No.) Terminal Description Condition Specified Condition SIL (7) - SG (5) During transmission During Transmission Pulse generation CG (4) - Body ground Chassis ground lways Below 1 Ω SG (5) - Body ground Signal ground lways Below 1 Ω BT (16) - Body ground Battery positive lways lways 10 to 14 V If the display shows UNBLE TO CONNECT TO VEHICLE when you connect the cable of the intelligent tester to the DLC3, turn the ignition switch to the ON position and operate the intelligent tester, there is a problem on the vehicle side or tester side. If communication is normal when the tester is connected to another vehicle, inspect the DLC3 on the original vehicle. If communication is still not possible when the tester is connected to another vehicle, the problem is probably in the tester itself. Consult the Service Department listed in the tester's instruction manual. 2. SYMPTOM SIMULTION The most difficult case in troubleshooting is when no symptoms occur. In such cases, a thorough customer problem analysis must be carried out. Then the same or similar conditions and environment in which the problem occurred in the customer's vehicle should be simulated. No matter how experienced or skilled a technician may be, if he proceeds to troubleshooting without confirming the problem symptoms, he will likely overlook something important and make a wrong guess at some points in the repair operation. This leads to a standstill in troubleshooting.

14 14 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM Shake Slightly Vibrate Slightly Vibrate Slightly D100465E01 Vibration method: When vibration seems to be the major cause. Perform the simulation method only during the primary check period (for approximately 6 seconds after the ignition switch is turned to the ON position). (1) Slightly vibrate the part of the sensor considered to be the problem cause with your fingers and check whether the malfunction occurs. Shaking the relays too strongly may result in open relays. (2) Slightly shake the connector vertically and horizontally. (3) Slightly shake the wire harness vertically and horizontally. The connector joint and fulcrum of the vibration are the major areas to be checked thoroughly. 3. FUNCTION OF S WRNI LIGHT Primary check (1) Wait for at least 2 seconds, and then turn the ignition switch to the ON position. The S warning light comes on for approximately 6 seconds and the S airbag system diagnosis (including the seat belt pretensioner and occupant classification system) is performed. If trouble is detected during the primary check, the S warning light remains on even after the primary check period (for approximately 6 seconds) has elapsed. Constant check (1) fter the primary check, the center airbag sensor constantly monitors the S airbag system for trouble. If trouble is detected during the constant check, the center airbag sensor functions as follows: The S warning light comes on. The S warning light go off, and then comes on. This blinking pattern indicates the source voltage drop. The S warning light goes off 10 seconds after the source voltage returns to normal. Review (1) When the airbag system is normal: The S warning light comes on only during the primary check period (for approximately 6 seconds after the ignition switch is turned to the ON position). (2) When the airbag system has trouble: The S warning light remains on even after the primary check period has elapsed.

15 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 15 C093955E03 The S warning light goes off after the primary check, but comes on again during the constant check. The S warning light does not come on when turning the ignition switch from the LOCK to ON position. The center airbag sensor keeps the S warning light on if the airbag has been deployed. 4. S WRNI LIGHT CHECK Turn the ignition switch to the ON position, and check that the S warning light comes on for approximately 6 seconds (primary check). Check that the S warning light goes off approximately 6 seconds after the ignition switch is turned to the ON position (constant check). When any of the following symptoms occur, refer to "Problem Symptoms Table" (See page -9). The S warning light comes on occasionally after the primary check period has elapsed. The S warning light comes on, but DTC is not output. The ignition switch is turned from the LOCK to ON position, but the S warning light does not come on. 5. FUNCTION OF PSSEER IRBG ON/OFF INDICTOR Initial check (1) Turn the ignition switch to the ON position. (2) The passenger airbag ON/OFF indicator comes on for approximately 4 seconds, then goes off for approximately 2 seconds. (3) pproximately 6 seconds after the ignition switch is turned ON, the passenger airbag ON/ OFF indicator will be ON or OFF depending on the conditions listed below. Passenger airbag ON/ OFF indicator Condition "ON" indicator "OFF" indicator S warning light Vacant OFF OFF OFF dult is seated. ON OFF OFF Child is seated. OFF ON OFF Child restraint system is set. OFF ON OFF Front passenger occupant classification failure OFF ON ON The passenger airbag ON/OFF indicator is based on the timing chart below in order to check the indicator light circuit.

16 16 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM When the front passenger occupant classification system has trouble, both the S warning light and the passenger airbag ON/OFF indicator ("OFF") come on. In this case, check the DTCs in "IRBG SYSTEM" first. Then troubleshoot the occupant classification system if DTC B1650/32 is detected, and troubleshoot the passenger airbag ON/OFF indicator if DTC B1660/43 is detected. Ignition Switch ON OFF 4 sec. 2 sec. Passenger irbag ON/OFF Indicator ( ON ) ON OFF 4 sec. 2 sec. Passenger irbag ON/OFF Indicator ( OFF ) ON OFF ON/OFF condition depends on the front passenger detection results. C123768E01 C PSSEER IRBG ON/OFF INDICTOR CHECK Turn the ignition switch to the ON position. Check that the passenger airbag ON/OFF indicator ("ON" and "OFF") comes on for approximately 4 seconds, then goes off for approximately 2 seconds. Refer to the table in the previous step regarding the passenger airbag ON/OFF indicator when the ignition switch is turned to the ON position and approximately 6 seconds pass. 7. RELESE METHOD OF CTIVTION PREVENTION MECHNISM The activation prevention mechanism is built into the connector for the squib circuit of the S. s explained in the troubleshooting section, insert a piece of paper that is the same thickness as the male terminal between the terminal and the short spring to release it (Refer to the illustration below). CUTION: Never release the activation prevention mechanism on the squib connector even when inspection with the squib disconnected.

17 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 17 NOTICE: Do not release the activation prevention mechanism unless specially directed by the troubleshooting procedure. To prevent the terminal and the short spring from being damaged, always use a piece of paper that is the same thickness as the male terminal.

18 18 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM Front Seat Inner Belt ssembly RH Rear irbag Sensor RH* Front Seat Outer Belt ssembly RH (Pretensioner Squib RH) Curtain Shield irbag ssembly RH (Curtain Shield Squib RH)* Side irbag Sensor ssembly RH* Front irbag Sensor RH Front Seat irbag ssembly RH (Side Squib RH)* Heater Control Base (Passenger irbag ON/OFF Indicator) Front Passenger irbag ssembly (Passenger Squib) Center irbag Sensor ssembly Horn Button ssembly (Driver Squib) Front irbag Sensor LH Spiral Cable 22 Sub-assembly No. 1 Instrument Panel irbag ssembly Lower (Knee irbag Squib) Combination Meter ssembly (S Warning Light) Side irbag Sensor ssembly LH* Rear irbag Sensor LH* Front Seat irbag ssembly LH (Side Squib LH)* Curtain Shield irbag ssembly LH (Curtain Shield Squib LH)* Seat Position irbag Sensor / Front Seat Inner Belt ssembly LH Front Seat Outer Belt ssembly RH (Pretensioner Squib RH) *: with Side and Curtain Shield irbag 36 C145367E01

19 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 19 Center irbag Sensor ssembly Connector Short Spring Short Spring Short Spring Short Spring Short Spring Before Release fter Release Paper Paper Short Spring Short Spring Connector 20 Before Release fter Release Paper Paper Short Spring Short Spring Short Spring Connector 24 Before Release Paper fter Release Short Spring Short Spring Short Spring Paper Connector 32 Before Release Paper fter Release Paper Short Spring Short Spring Short Spring H045238E01

20 20 CG SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM TC E07 Normal System Code (without Past Trouble Code): ON OFF 0.25 sec sec. Normal System Code (with Past Trouble Code): ON OFF 0.75 sec sec. Trouble Code (Example Codes 11 and 31): 0.5 sec. 2.5 sec. 4.0 sec. ON OFF 1.5 sec. 0.5 sec. DTC 11 DTC 31 Repeat H013050E17 DTC CHECK / CLER 1. DTC CHECK (USI SST CHECK WIRE) Check the DTCs (Present trouble code). (1) Turn the ignition switch to the ON position, and wait for approximately 60 seconds. (2) Using SST, connect terminals TC and CG of the DLC3. SST NOTICE: Connect the terminals to the correct positions to avoid a malfunction. Check the DTCs (Past trouble code). (1) Using SST, connect terminals TC and CG of the DLC3. SST NOTICE: Connect the terminals to the correct positions to avoid a malfunction. (2) Turn the ignition switch to the ON position, and wait for approximately 60 seconds. Read the DTCs. (1) Read the blinking patterns of the DTCs. s examples, the blinking patterns for the normal system code and trouble codes 11 and 31 are shown in the illustration. Normal system code indication (without past trouble code) The light blinks twice per second. Normal system code indication (with past trouble code) When the past trouble code is stored in the center airbag sensor assembly, the light blinks only once per second. Trouble code indication The first blinks indicates the first DTC. The second blinks occurs after a 1.5-second pause. If there are more than 1 code, there will be a 2.5- second pause between each code. fter all codes are shown, there will be a 4.0-second pause, and then they will all be repeated. If 2 or more malfunctions are found, the indication begins with the smaller numbered code. If DTCs are indicated without connecting the terminals, proceed to "TC and CG Terminal Circuit" (See page -241).

21 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM DTC CLER (USI SST CHECK WIRE) Clear the DTCs. (1) When the ignition switch is turned off, the DTCs are cleared. Depending on the DTC, the code may not be cleared by turning off the ignition switch. In this case, proceed to the next procedure. (2) Using SST, connect terminals TC and CG of the DLC3, and then turn the ignition switch to the ON position. SST (3) Disconnect terminal TC of the DLC3 within 3 to 10 seconds after the DTCs are output, and check if the S warning light comes on after 3 seconds. (4) Within 2 to 4 seconds after the S warning light comes on, connect terminals TC and CG of the DLC3. (5) The S warning light should go off within 2 to 4 seconds after connecting terminals TC and CG of the DLC3. Then, disconnect terminal TC within 2 to 4 seconds after the S warning light goes off. (6) The S warning light comes on again within 2 to 4 seconds after disconnecting terminal TC. Then, reconnect terminals TC and CG within 2 to 4 seconds after the S warning light comes on.

22 22 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM (7) Check if the S warning light goes off within 2 to 4 seconds after connecting terminals TC and CG of the DLC3. lso check if the normal system code is output within 1 second after the S warning light goes off. If DTCs are not cleared, repeat this procedure until the codes are cleared. ON Ignition Switch LOCK DLC3 (TC and CG) Open S Warning Light (*) Short ON 0.5 sec. 0.5 sec sec sec. T1: 0 to sec. T2: approx. 6 sec. T3: 3 to 5 sec. OFF 1.5 sec. T4: 3 to 10 sec. T5: 2 to 4 sec. T1 T2 T3 T4 T5 T6 T5 T6 T5 T6 T5 T7 T6: 1 to 5 sec. T7: within 1 sec. *: The past trouble code in the illustration shows DTC 21 as an example. C C123780E01 DLC3 Intelligent Tester C147699E01 3. DTC CHECK Check the DTCs. (1) Connect the intelligent tester to the DLC3. (2) Turn the ignition switch to the ON position. (3) Check the DTCs by following the prompts on the tester screen. Refer to the intelligent tester operator's manual for further details. Clear the DTCs. (1) Connect the intelligent tester to the DLC3. (2) Turn the ignition switch to the ON position. (3) Clear the DTCs by following the prompts on the tester screen. Refer to the intelligent tester operator's manual for further details.

23 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 23 CHECK MODE PROCEDURE DLC3 Intelligent Tester C147699E01 1. CHECK MODE (SIGNL CHECK): DTC CHECK Connect the intelligent tester to the DLC3. Turn the ignition switch to the ON position. Select "SIGNL CHECK", and proceed with checking using the intelligent tester. NOTICE: Select "SIGNL CHECK" from the "DTC CHECK" screen displayed on the intelligent tester to clear the output DTCs (both present and past). DTCs can be detected more sensitively in check mode than in normal diagnosis mode. Perform check mode inspection when a malfunction in each squib circuit is suspected even after the normal system code is output through normal diagnosis mode inspection.

24 24 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM DT LIST / CTIVE TEST By accessing the DT LIST displayed on the intelligent tester, you can perform such functions as reading the values of switches and sensors without removing any parts. Reading the DT LIST as the first step in troubleshooting is one method to save labor time. 1. DT LIST FOR CENTER IRBG SENSOR SSEMBLY Connect the intelligent tester to the DLC3. Turn the ignition switch to the ON position. Turn the tester on. Enter the following menus: DIGNOSIS / OBD/ MOBD / S IRBG / DT LIST. (e) Check the values by referring to the DLC3 Intelligent Tester C147699E01 DT LIST: Tester Display Measurement Item/Range Normal Condition Diagnostic Note D SET POSITION PSSEER CLSS D BUCKLE SW P BUCKLE SW PST CODES Driver Seat Position/ FORWRD: Seat position is forward BKWRD: Seat position is backward FIL: Failure detected Passenger Classification/ : Data is not determined OFF: Vacant CHILD: Child (less than 36 kg (79.37 lb)) is seated F05: dult (36 to 54 kg (79.37 to lb) is seated M50: dult (more than 54 kg ( lb)) is seated FIL: failure is detected Driver Buckle SW/ UNSET: The seat belt is not fastened SET: The seat belt is fastened : Data is not determined Passenger Buckle SW/ UNSET: The seat belt is not fastened SET: The seat belt is fastened : Data is not determined Number of Past DTC/ Min.: 0, Max.: 255 FORWRD/BKWRD - OFF/CHILD/F05/M50 - UNSET/SET - UNSET/SET - 0 -

25 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 25 TYPE INFO: DISPLY TYPE Tester Display Measurement Item/Range Normal Condition Diagnostic Note Display Type Information/ LR: The display is indicated by LH/RH DP: The display is indicated by Driver/Passenger DP -

26 26 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM IRBG SYSTEM DIGNOSTIC TROUBLE CODE CHRT If a trouble code is displayed during the DTC check, check the circuit listed for the code in the table below (refer to the appropriate page). When the S warning light remains on and the DTC output is the normal system code, a voltage source drop is likely occurring. This malfunction is not stored in the memory by the center airbag sensor assembly. If the power source voltage returns to normal, the S warning light will automatically go off. When 2 or more codes are indicated, the code with the lower number appears first. If a code is not listed on the display chart, the center airbag sensor assembly may have failed. In the case of any malfunction concerning an open circuit, short to ground, short to B+, or squib malfunction, other trouble codes may not be detected. In this case, repair the malfunction currently indicated and then reinspect the system. Mark in the check mode column: *1: DTC is not corresponding to the check mode. *2: DTC is corresponding to the check mode. DTC which has the mark of the *3 is output only the equipped car of side and curtain shield airbag. DTC Code Detection Item Trouble rea Check Mode See page B1000/31 B1610/13 B1615/14 B1620/21 (*3) B1625/22 (*3) B1630/23 (*3) Center irbag Sensor ssembly Malfunction Front irbag Sensor RH Circuit Malfunction Front irbag Sensor LH Circuit Malfunction Side irbag Sensor RH Circuit Malfunction Side irbag Sensor LH Circuit Malfunction Driver Side Rear irbag Sensor Circuit Malfunction Center airbag sensor assembly 1. Front airbag sensor RH 2. Center airbag sensor assembly 3. Instrument panel wire 4. Engine room main wire 1. Front airbag sensor LH 2. Center airbag sensor assembly 3. Instrument panel wire 4. Engine room main wire 1. Side airbag sensor assembly RH (door side airbag sensor RH) 2. Center airbag sensor assembly 3. No. 2 floor wire 4. Front door wire RH 1. Side airbag sensor assembly RH (door side airbag sensor RH) 2. Center airbag sensor assembly 3. Floor wire 4. Front door wire LH 1. Rear airbag sensor LH 2. Center airbag sensor assembly 3. Floor wire *1-27 *1-28 *1-37 *1-46 *1-53 *1-60

27 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 27 DTC Code Detection Item Trouble rea Check Mode See page B1635/24 (*3) B1650/32 B1653/35 B1655/37 B1660/43 B1800/51 B1801/51 B1802/51 B1803/51 B1805/52 B1806/52 B1807/52 B1808/52 Front Passenger Side Rear irbag Sensor Circuit Malfunction Occupant Classification System Malfunction Seat Position irbag Sensor Circuit Malfunction Driver Side Seat Belt Buckle Switch Circuit Malfunction Passenger irbag ON / OFF Indicator Circuit Malfunction Short in Driver Side Squib Circuit Open in Driver Side Squib Circuit Short to GND in Driver Side Squib Circuit Short to B+ in Driver Side Squib Circuit Short in Front Passenger Side Squib Circuit Open in Front Passenger Side Squib Circuit Short to GND in Front Passenger Side Squib Circuit Short to B+ in Front Passenger Side Squib Circuit 1. Rear airbag sensor RH 2. Center airbag sensor assembly 3. Floor wire No Floor wire No Occupant classification system 3. Center airbag sensor assembly 1. Floor wire 2. Front seat inner belt assembly LH 3. Seat position airbag sensor 4. Center airbag sensor assembly 1. Front seat inner belt assembly LH (seat belt buckle switch (driver side)) 2. Center airbag sensor assembly 3. Floor wire 1. Instrument panel wire 2. Heater control base (Passenger airbag ON/ OFF indicator) 3. Center airbag sensor assembly 1. Horn button assembly (driver side squib) 2. Spiral cable subassembly 3. Center airbag sensor assembly 4. Instrument panel wire *1-65 *1-70 *1-76 *1-86 *1-92 *2-104 Same as DTC B1800/51 *2-104 Same as DTC B1800/51 *2-104 Same as DTC B1800/51 * Instrument panel wire 2. Instrument panel wire assembly 3. Front passenger airbag assembly (front passenger side squib) 4. Center airbag sensor assembly *2-118 Same as DTC B1805/52 *2-118 Same as DTC B1805/52 *2-118 Same as DTC B1805/52 *2-118

28 28 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM DTC Code Detection Item Trouble rea Check Mode See page B1810/53 B1811/53 B1812/53 B1813/53 B1815/54 B1816/54 B1817/54 B1818/54 B1820/55 (*3) B1821/55 (*3) B1822/55 (*3) B1823/55 (*3) B1825/56 (*3) B1826/56 (*3) B1827/56 (*3) B1828/56 (*3) Short in Driver Side Squib 2nd Step Circuit Open in Driver Side Squib 2nd Step Circuit Short to GND in Driver Side Squib 2nd Step Circuit Short to B+ in Driver Side Squib 2nd Step Circuit Short in Front Passenger Side Squib 2nd Step Circuit Open in Front Passenger Side Squib 2nd Step Circuit Short to GND in Front Passenger Side Squib 2nd Step Circuit Short to B+ in Front Passenger Side Squib 2nd Step Circuit Short in Front Driver Side - Side Squib Circuit Open in Front Driver Side - Side Squib Circuit Short to GND in Front Driver Side - Side Squib Circuit Short to B+ in Front Driver Side - Side Squib Circuit Short in Front Passenger Side - Side Squib Circuit Open in Front Passenger Side - Side Squib Circuit Short to GND in Front Passenger Side - Side Squib Circuit Short to B+ in Front Passenger Side - Side Squib Circuit 1. Horn button assembly (driver side squib, dual stage - 2nd step) 2. Spiral cable subassembly 3. Center airbag sensor assembly 4. Instrument panel wire *2-132 Same as DTC B1810/53 *2-132 Same as DTC B1810/53 *2-132 Same as DTC B1810/53 * Front passenger airbag assembly (driver side squib, dual stage - 2nd step) 2. Center airbag sensor assembly 3. Instrument panel wire 4. Instrument panel wire assembly *2-148 Same as DTC B1815/54 *2-148 Same as DTC B1815/54 *2-148 Same as DTC B1815/54 * Front seat with adjuster frame assembly LH (side squib (driver side)) 2. Center airbag sensor assembly 3. Floor wire *2-165 Same as DTC B1820/55 *2-165 Same as DTC B1820/55 *2-165 Same as DTC B1820/55 * Front seat with adjuster frame assembly RH (side squib (front passenger side)) 2. Center airbag sensor assembly 3. No. 2 floor wire *2-175 Same as DTC B1825/56 *2-175 Same as DTC B1825/56 *2-175 Same as DTC B1825/56 *2-175

29 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 29 DTC Code Detection Item Trouble rea Check Mode See page B1830/57 (*3) B1831/57 (*3) B1832/57 (*3) B1833/57 (*3) B1835/58 (*3) B1836/58 (*3) B1837/58 (*3) B1838/58 (*3) B1860/64 B1861/64 B1862/64 B1863/64 B1900/73 B1901/73 B1902/73 B1903/73 Short in Driver Side Curtain Shield Squib Circuit Open in Driver Side Curtain Shield Squib Circuit Short to GND in Driver Side Curtain Shield Squib Circuit Short to B+ in Driver Side Curtain Shield Squib Circuit Short in Front Passenger Side Curtain Shield Squib Circuit Open in Front Passenger Side Curtain Shield Squib Circuit Short to GND in Front Passenger Side Curtain Shield Squib Circuit Short to B+ in Front Passenger Side Curtain Shield Squib Circuit Short in Driver Side Knee irbag Squib Circuit Open in Driver Side Knee irbag Squib Circuit Short to GND in Driver Side Knee irbag Squib Circuit Short to B+ in Driver Side Knee irbag Squib Circuit Short in Front Driver Side Pretensioner Squib Circuit Open in Front Driver Side Pretensioner Squib Circuit Short to GND in Front Driver Side Pretensioner Squib Circuit Short to B+ in Front Driver Side Pretensioner Squib Circuit 1. Curtain shield airbag assembly LH (curtain shield airbag (driver side) squib) 2. Center airbag sensor assembly 3. Floor wire *2-185 Same as DTC B1830/57 *2-185 Same as DTC B1830/57 *2-185 Same as DTC B1830/57 * Curtain shield airbag assembly RH (curtain shield airbag (front passenger side) squib) 2. Center airbag sensor assembly 3. No. 2 floor wire *2-195 Same as DTC B1835/58 *2-195 Same as DTC B1835/58 *2-195 Same as DTC B1835/58 * Instrument panel wire 2. No. 1 instrument panel airbag assembly lower (knee airbag squib) 3. Center airbag sensor assembly *2-204 Same as DTC B1860/64 *2-204 Same as DTC B1860/64 *2-204 Same as DTC B1860/64 * Front seat outer belt assembly LH (pretensioner squib (driver side)) 2. Center airbag sensor assembly 3. Floor wire *2-213 Same as DTC B1900/73 *2-213 Same as DTC B1900/73 *2-213 Same as DTC B1900/73 *2-213

30 30 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM DTC Code Detection Item Trouble rea Check Mode See page B1905/74 B1906/74 B1907/74 B1908/74 Short in Front Passenger Side Pretensioner Squib Circuit Open in Front Passenger Side Pretensioner Squib Circuit Short to GND in Front Passenger Side Pretensioner Squib Circuit Short to B+ in Front Passenger Side Front Pretensioner Squib Circuit 1. Front seat outer belt assembly RH (pretensioner squib (front passenger side)) 2. Center airbag sensor assembly 3. No. 2 floor wire *2-222 Same as DTC B1905/74 *2-222 Same as DTC B1905/74 *2-222 Same as DTC B1905/74 *2-222

31 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 31 DTC B1000/31 Center irbag Sensor ssembly Malfunction DESCRIPTION The center airbag sensor consists of the airbag sensor, the safing sensor, the drive circuit, the diagnostic circuit, the ignition control, etc. If the center airbag sensor receives signals from the airbag sensor, it determines whether or not the S should be activated. B1000/31 is recorded when a malfunction is detected in the center airbag sensor. DTC No. DTC Detection Condition Trouble rea B1000/31 Center airbag sensor assembly malfunction Center airbag sensor assembly When a DTC is displayed simultaneously with B1000/31, repair the malfunction indicated by this code (except B1000/31) first. INSPECTION PROCEDURE 1 CHECK FOR DTC (e) (f) (g) (h) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds. Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds. Turn the ignition switch to the ON position, and wait for at least 60 seconds. Clear the DTCs stored in memory (see page -18). Turn the ignition switch to the ON position, and wait for at least 60 seconds. Check the DTCs (see page -18). : DTC B1000/31 is not output. REPLCE CENTER IRBG SENSOR SSEMBLY PERFORM SYMPTOM SIMULTION

32 32 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM DTC B1610/13 Front irbag Sensor RH Circuit Malfunction DESCRIPTION The front airbag sensor RH consists of the diagnostic circuit, the frontal deceleration sensor, etc. If the center airbag sensor receives signals from the frontal deceleration sensor, it determines whether or not the S should be activated. DTC B1610/13 is recorded when a malfunction is detected in the front airbag sensor RH circuit. DTC No, DTC Detection Condition Trouble rea B1610/13 The center airbag sensor assembly receives a line short signal, open signal, short to ground signal or B+ short signal in the front airbag sensor RH circuit for 2 seconds. Front airbag sensor RH malfunction Center airbag sensor assembly malfunction Front airbag sensor RH Center airbag sensor assembly Instrument panel wire Engine room main wire WIRI DIGRM 5 Front irbag Sensor RH Center irbag Sensor ssembly +SR 2 W 1 IE3 W SR -SR 1 B 2 IE3 B SR H002750E05

33 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 33 INSPECTION PROCEDURE 1 CHECK FOR DTC Front irbag Sensor RH (e) Turn the ignition switch to the ON position, and wait for at least 60 seconds. Clear the DTCs stored in memory (See page -18). Turn the ignition switch to the ON position, and wait for at least 60 seconds. Check for DTCs (See page -18). : DTC B1610/13 is not output. Codes other than code B1610/13 may be output at this time, but they are not related to this check. Go to step 2 Center irbag Sensor ssembly H100441E01 PERFORM SYMPTOM SIMULTION 2 CHECK CONNECTION OF CONNECTO Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds. Check that the connectors are properly connected to the center airbag sensor and the front airbag sensor RH. : The connectors are connected. CONNECT CONNECTO

34 34 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 3 CHECK FRONT IRBG SENSOR RH CIRCUIT (OPEN) Center irbag Sensor ssembly Front irbag Sensor RH F E DC B Service Wire +SR -SR H100442E01 (e) (f) (g) (h) (i) (j) (k) (l) Disconnect the connectors from the center airbag sensor. Disconnect the connectors from the horn button. Disconnect the connectors from the front passenger airbag. Disconnect the connector from the No. 1 instrument panel airbag lower. w/ Side and curtain shield airbag: Disconnect the connector from the front seat airbag LH. w/ Side and curtain shield airbag: Disconnect the connector from the front seat airbag RH. w/ Side and curtain shield airbag: Disconnect the connector from the curtain shield airbag LH. w/ Side and curtain shield airbag: Disconnect the connector from the curtain shield airbag RH. Disconnect the connector from the front seat outer belt LH. Disconnect the connector from the front seat outer belt RH. Using a service wire, connect 5-2 and 5-1 of connector "E". NOTICE: Do not forcibly insert a service wire into the terminals of the connector when connecting. Measure the resistance according to the value(s) in the Standard resistance Tester Connection Specified Condition (+SR) (-SR) Below 1 Ω Go to step 8

35 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 35 4 CHECK FRONT IRBG SENSOR RH CIRCUIT (SHORT) F Front irbag Sensor RH E D C 12 B Center irbag Sensor ssembly Disconnect the service wire from connector "E". Measure the resistance according to the value(s) in the Standard resistance Tester Connection Specified Condition (+SR) (-SR) 1 MΩ or higher Go to step 9 +SR -SR H043437E01 5 CHECK FRONT IRBG SENSOR RH CIRCUIT (TO B+) F Front irbag Sensor RH E D C 12 B Center irbag Sensor ssembly Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds. Turn the ignition switch to the ON position. Measure the voltage according to the value(s) in the Standard voltage Tester Connection Specified Condition (+SR) - Body ground Below 1 V (-SR) - Body ground Below 1 V Go to step 10 +SR -SR H043437E01

36 36 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 6 CHECK FRONT IRBG SENSOR RH CIRCUIT (TO GROUND) F Front irbag Sensor RH E D C 12 B Center irbag Sensor ssembly Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds. Measure the resistance according to the value(s) in the Standard resistance Tester Connection Specified Condition (+SR) - Body ground 1 MΩ or higher (-SR) - Body ground 1 MΩ or higher Go to step 11 +SR -SR H043437E01 7 CHECK FRONT IRBG SENSOR RH Front irbag Sensor LH D C Center irbag Sensor ssembly (e) (f) (g) (h) Connect the connectors to the center airbag sensor. Interchange the front airbag sensor RH with LH and connect the connectors to them. Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds. Turn the ignition switch to the ON position, and wait for at least 60 seconds. Clear the DTCs stored in memory (See page -18). Turn the ignition switch to the ON position, and wait for at least 60 seconds. Check the DTCs (See page -18). Result Result DTC B1610/13 is output. DTC B1615/14 is output. DTC B1610/13 and B1615/14 are not output. Proceed to B C H100443E01 B REPLCE CENTER IRBG SENSOR SSEMBLY REPLCE FRONT IRBG SENSOR RH C PERFORM SYMPTOM SIMULTION

37 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 37 8 CHECK EINE ROOM MIN WIRE (OPEN) Center irbag Sensor ssembly Front irbag Sensor RH Engine Room Main Wire Instrument Panel Wire Disconnect the engine room main wire connector from the instrument panel wire. Connector "E" has already been inserted into the service wire. Measure the resistance according to the value(s) in the Standard resistance F E D C B Tester Connection IE3-1 (+SR) - IE3-2 (-SR) Specified Condition Below 1 Ω IE3 REPIR OR REPLCE EINE ROOM MIN WIRE -SR SR Service Wire H100444E01 REPIR OR REPLCE INSTRUMENT PNEL WIRE

38 38 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 9 CHECK EINE ROOM MIN WIRE (SHORT) Engine Room Main Wire Center irbag Sensor ssembly Disconnect the engine room main wire connector from the instrument panel wire. Measure the resistance according to the value(s) in the Standard resistance Tester Connection Specified Condition IE3-1 (+SR) - IE3-2 (-SR) 1 MΩ or higher F E D C B REPIR OR REPLCE EINE ROOM MIN WIRE Front irbag Sensor RH IE3 Instrument Panel Wire -SR SR H100445E01 REPIR OR REPLCE INSTRUMENT PNEL WIRE

39 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM CHECK EINE ROOM MIN WIRE (TO B+) Engine Room Main Wire F E D C Center irbag Sensor ssembly B (e) (f) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds. Disconnect the engine room main wire connector from the instrument panel wire. Disconnect the negative (-) terminal cable from the battery, and wait for at least 2 seconds. Turn the ignition switch to the ON position. Measure the voltage according to the value(s) in the Standard voltage Front irbag Sensor RH IE3 Instrument Panel Wire Tester Connection IE3-1 (+SR) - Body ground IE3-2 (-SR) - Body ground Specified Condition Below 1 V Below 1 V -SR SR REPIR OR REPLCE EINE ROOM MIN WIRE H100445E01 REPIR OR REPLCE INSTRUMENT PNEL WIRE

40 40 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 11 CHECK EINE ROOM MIN WIRE (TO GROUND) Engine Room Main Wire Center irbag Sensor ssembly Disconnect the engine room main wire connector from the instrument panel wire. Measure the resistance according to the value(s) in the Standard resistance Tester Connection Specified Condition IE3-1 (+SR) - Body ground 1 MΩ or higher IE3-2 (-SR) - Body ground 1 MΩ or higher F Front irbag Sensor RH E D C IE3 B Instrument Panel Wire REPIR OR REPLCE EINE ROOM MIN WIRE -SR SR H100445E01 REPIR OR REPLCE INSTRUMENT PNEL WIRE

41 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 41 DTC B1615/14 Front irbag Sensor LH Circuit Malfunction DESCRIPTION The front airbag sensor LH consists of the diagnostic circuit, the frontal deceleration sensor, etc. If the center airbag sensor receives signals from the frontal deceleration sensor, it determines whether or not the S should be activated. DTC B1615/14 is recorded when a malfunction is detected in the front airbag sensor LH circuit. DTC No. DTC Detection Condition Trouble rea B1615/14 The center airbag sensor assembly receives a line short signal, open signal, short to ground signal or B+ short signal in the front airbag sensor LH circuit for 2 seconds. Front airbag sensor LH malfunction Center airbag sensor assembly malfunction Front airbag sensor LH Center airbag sensor assembly Instrument panel wire Engine room main wire WIRI DIGRM 4 Front irbag Sensor LH Center irbag Sensor ssembly +SL 2 G 3 IE3 G SL -SL 1 R 4 IE3 R SL H002750E06

42 42 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM INSPECTION PROCEDURE 1 CHECK FOR DTC Front irbag Sensor LH (e) Turn the ignition switch to the ON position, and wait for at least 60 seconds. Clear the DTCs stored in memory (See page -18). Turn the ignition switch to the ON position, and wait for at least 60 seconds. Check for DTCs (See page -18). : DTC B1615/14 is not output. Codes other than code B1615/14 may be output at this time, but they are not related to this check. Go to step 2 Center irbag Sensor ssembly H100447E01 PERFORM SYMPTOM SIMULTION 2 CHECK CONNECTION OF CONNECTO Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds. Check that the connectors are properly connected to the center airbag sensor and the front airbag sensor LH. : The connectors are connected. CONNECT CONNECTO

43 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 43 3 CHECK FRONT IRBG SENSOR LH CIRCUIT (OPEN) Center irbag Sensor ssembly Front irbag Sensor LH F E DC B Service Wire +SL -SL H100446E01 (e) (f) (g) (h) (i) (j) (k) (l) Disconnect the connectors from the center airbag sensor. Disconnect the connectors from the horn button. Disconnect the connectors from the front passenger airbag. Disconnect the connector from the No. 1 instrument panel airbag lower. w/ Side and curtain shield airbag: Disconnect the connector from the front seat airbag LH. w/ Side and curtain shield airbag: Disconnect the connector from the front seat airbag RH. w/ Side and curtain shield airbag: Disconnect the connector from the curtain shield airbag LH. w/ Side and curtain shield airbag: Disconnect the connector from the curtain shield airbag RH. Disconnect the connector from the front seat outer belt LH. Disconnect the connector from the front seat outer belt RH. Using a service wire, connect 4-2 and 4-1 of connector "E". NOTICE: Do not forcibly insert a service wire into the terminals of the connector when connecting. Measure the resistance according to the value(s) in the Standard resistance Tester Connection Specified Condition (+SL) (-SL) Below 1 Ω Go to step 8

44 44 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 4 CHECK FRONT IRBG SENSOR LH CIRCUIT (SHORT) F E Front irbag Sensor LH D C 12 B Center irbag Sensor ssembly Disconnect the service wire from connector "E". Measure the resistance according to the value(s) in the Standard resistance Tester Connection Specified Condition (+SL) (-SL) 1 MΩ or higher Go to step 9 +SL -SL H043437E02 5 CHECK FRONT IRBG SENSOR LH CIRCUIT (TO B+) F Front irbag Sensor LH E D C 12 B Center irbag Sensor ssembly Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds. Turn the ignition switch to the ON position. Measure the voltage according to the value(s) in the Standard voltage Tester Connection Specified Condition (+SL) - Body ground Below 1 V (-SL) - Body ground Below 1 V Go to step 10 +SL -SL H043437E02

45 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 45 6 CHECK FRONT IRBG SENSOR LH CIRCUIT (TO GROUND) F E Front irbag Sensor LH D C 12 B Center irbag Sensor ssembly Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds. Measure the resistance according to the value(s) in the Standard resistance Tester Connection Specified Condition (+SL) - Body ground 1 MΩ or higher (-SL) - Body ground 1 MΩ or higher Go to step 11 +SL -SL H043437E02 7 CHECK FRONT IRBG SENSOR LH Front irbag Sensor RH D C Center irbag Sensor ssembly (e) (f) (g) (h) Connect the connectors to the center airbag sensor. Interchange the front airbag sensor LH with RH and connect the connectors to them. Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds. Turn the ignition switch to the ON position, and wait for at least 60 seconds. Clear the DTCs stored in memory (See page -18). Turn the ignition switch to the ON position, and wait for at least 60 seconds. Check for DTCs (See page -18). Result Result DTC B1615/14 is output. DTC B1610/13 is output. DTC B1610/13 and B 1615/14 are not output. Proceed to B C H100448E01 B REPLCE CENTER IRBG SENSOR SSEMBLY REPLCE FRONT IRBG SENSOR LH C PERFORM SYMPTOM SIMULTION

46 46 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 8 CHECK EINE ROOM MIN WIRE (OPEN) Front irbag Sensor LH Engine Room Main Wire Center irbag Sensor ssembly Instrument Panel Wire Disconnect the engine room main wire connector from the instrument panel wire. Connector "E" has already been inserted into the service wire. Measure the resistance according to the value(s) in the Standard resistance F E D C B Tester Connection IE3-3 (+SL) - IE3-4 (-SL) Specified Condition Below 1 Ω IE3 REPIR OR REPLCE EINE ROOM MIN WIRE SL +SL Service Wire H100449E01 REPIR OR REPLCE INSTRUMENT PNEL WIRE