ED BCM. Body Control Module. 1 Chonan Technical Service Training Center

Transcription

1 Body Control Module 1 Chonan Technical Service Training Center

2 Chonan Technical Service Training Center 2

3 Objectives To understand the function of Body Control Module. To understand the control function and operation condition. To understand the troubleshooting method. The BCM supplies various conveniences for drivers and is applied to many vehicles. It is well familiar with us for many aspects including functional questions and malfunction examples. The BCM controls the body electrical system. New functions controlled by the BCM are, for example, the driver seat belt warning control, turn signal lamp control, head lamp control are supplemented. In addition, User s option by which conveniences can be set to driver s inclination items for easy checking using Hi-scan pro. Therefore, it will be possible to perform maintenances by more accurate diagnosis. Warning lamp control Power window control Switch illumination control Tail auto cut control Wiper control Anti-theft control 3 Chonan Technical Service Training Center

4 Chonan Technical Service Training Center 4

5 1. BCM General information 1.1 Block diagram Battery (Back-up Voltage) Ignition 1 & 2(Power Voltage) Alternator L terminal IGN. Key door warning All door es Driver s door unlock Passenger s door unlock Central door lock/ unlock Tailgate Hood Driver door key lock/unlock Passenger door key lock/unlock Front window deicer Washer Wiper intermittent Wiper INT. Volume Resistor S/W Rear window washer Rear window wiper Rear window defogger Tail lamp Driver seat belt Vehicle crash signal (from A/BCM) Vehicle speed sensor Headlamp Fog lamp Tailgate handle Code saving signal Rear left/right door unlock Remote Controller Lock/Unlock Switch Auto light sensor signal Auto light Passenger seat SBR signal B C M Wiper motor Rear wiper & washer Defogger Seat belt warning indicator Chime bell Power window Door lock/unlock IGN. key hoe Illumination Tail lamp Head lamp Room lamp Fog lamp Rear fog lamp Cluster Burglar alarm horn Burglar alarm Tailgate open Front window dicer Rear defogger Hazard Security indicator 5 Chonan Technical Service Training Center

6 1.2 BCM Control function items Function With KEYLESS NON-KEYLESS 1 Washer operating together INT. wiper O O 2 Wiper control Variable INT wiper O O 3 Wiper mist O O 4 Rear wiper & washer (non - variable) O O 5 Chime buzzer Seat belt reminder O O 6 Rear defogger timer O O 7 Front deicer timer O O 8 Delay room lamp O O 9 Tail lamp auto cut O O 10 Key hole illumination O O 11 Rear fog lamp control O O 12 Central door lock/unlock O O 13 Driver door key Lock O O 14 Unlock O O 15 Assist door key Lock X O 16 Unlock X O 17 Keyless Lock O X 18 Unlock O X 19 Ignition key reminder O O 20 Impact sensing door unlock O O 21 Speed sensing auto door lock O O 22 Door unlock when key out O O 23 Auto light control system O X 24 DRL O O 25 Keyless entry & anti theft O X 26 Dead lock O O 27 Power window timer O O 28 Front fog lamp control O O 29 Security indicator O X 30 Diagnosis O O 31 Key arm / disarm O X 32 Head lamp escort O X Chonan Technical Service Training Center 6

7 1.3 BCM Circuit diagram 7 Chonan Technical Service Training Center

8 2. BCM Control Function 2.1 Front /Rear wiper and washer control Front wiper and washer linkage control (1) When the washer is ON for T1 at IGN SW = ON state, the wiper is ON after T2 from washer = ON state, and wiper is OFF after T3. (2) If the washer is ON over than T1 at IGN SW = ON state, the wiper is ON after T2 from washer = ON state, and wiper is OFF after T3 from washer = OFF. IGN. Washer Wiper T1: 0.2sec. T2: 03±01 sec. T3: 2.5 ~ 3.8 sec. (2~3 rotate) (3) If washer is ON over than T1 during operating by INT. the operation mentioned in (2) is performed. If it is ON for T6, then the operation mentioned in (1) is performed. Washer Wiper T1: 0.2 sec.(min) T2: 03±0.1 sec. T3: 2.5 ~ 3.8 sec. (2~3 rotate) T5: INT. time T6: 0.2±0.59 sec. T7: 0.7±0.1sec. - If Ignition is OFF during T3 output, then operation is terminated. - It is prior to the INT. wiper function responding to the vehicle speed. - At cranking (IGN1 ON& IGN2 OFF state), washer input is ignored. Chonan Technical Service Training Center 8

9 2.1.2 Variable intermittent wiper IGN 2 INT. wiper T1 Wiper. T3 T2 T1: 0.3sec Max. T2: 0.7±01 sec. T3: INT time 2.2±0.2sec(VR=0KΩ)Min ~ 10±1sec (VR 50KΩ)Max Rear wiper and washer control (1) When rear washer Input is 0.3 seconds or more at ignition is on condition, rear wiper is turned on directly after 0.6 seconds at the time that rear washer is on and is turned OFF after operating 2.5s~3.8s(2~3 Times) from rear washer is turned off. IGN. Washer Wiper T1: 0.6sec. T2: 03±01 sec. T3: 2~3 rotate IGN 2 INT. wiper T1 Wiper. T2 9 Chonan Technical Service Training Center

10 T1: 0.7±01 sec. T2: 7.5±1 sec Seatbelt reminder function (driver and passenger seat) (1) Warning lamp is turned on when IGN1 is turned on and seat belt is not fastened. (2) In the above (1), warning lamp is turned off when seat belt is fastened. (But warning lamp continues on for 6sec. if seat belt is fastened within 6sec.) Warning lamp is turned on continually if seat belt is not fastened. (3) In the above (2), warning lamp is turned on when the vehicle speed is higher than 9KPH and seat belt is not fastened. (4) In the above (3), warning lamp is turned off when the vehicle speed is lower than 6KPH and seat belt is not fastened (5) In the above (3), the warning lamp continues to flash and buzzer sounds once and seat belt is not fastened. The warning lamp continues to flash and buzzer is turned off after output completion. The buzzer does not make output when the vehicle speed is higher than 20KPH after buzzer output once completion. (6) In the above (3), (4), (5), the warning lamp and buzzer are turned off when seat belt is fastened. (7) In the above (6), and driver seat belt become unfasten, warning lamp is turned on and off when vehicle speed is between 9KPH and 20KPH. After, when seatbelt is not fastened and vehicle speed is 20KPH or more, warning lamp and buzzer are turn on at once. Further, IGN1 is turned on condition and driver seat belt is fastened unfastened and when vehicle speed becomes 20KPH or more, buzzer sounds once. During this period the output is stopped when seatbelt is fastened. (8) In the above (6), seatbelt is fastened unfastened and when vehicle speed becomes lower than 9KPH, warning lamp is turn on. (9) In the above (3), (4), (5), warning lamp and buzzer are turned off when ignition is turned off. Chonan Technical Service Training Center 10

11 2.3 Rear Window Defogger Timer (1) The defogger is "on" for 20min when the defogger is pressed in case alternator L terminal signal is in the "charging voltages high" position. (2) The defogger is "off" if the defogger is pressed again when the output is still "on" state. Ignition Switch Alternator L Signal Defogger Switch Defogger Relay T1: 60±20ms T2: 20±1 min 2.4 Front deicer function (1) Deicer is turned for T1 if deicer is turned on under ALT "L" = ON. (2) Deicer is turned off if deicer is turned on again under deicer outputs on condition or alternator L signal is turned off. Alternator L signal Front deicer Front deicer T1 T1 T1: 20±1 Min 11 Chonan Technical Service Training Center

12 2.5 Delay out room lamp 1) As soon as door is closed, the room lamp is on 30 seconds and dims for 2 seconds and turned off. 2) Room lamp is turned off as soon as the ignition is turned on. Initial Condition Event Room Lamp * Room lamp : * Ignition key : Remove * All doors : Close * Room lamp : * Ignition key : Remove * All doors : Close * Room lamp : * Ignition key : Remove * All doors : Close * Room lamp on 30 sec. (After door is closed.) All doors : Open Close All doors : Open Not close Transmitter signal : Unlock * Ignition : or * Arm wait mode or * All doors : Lock Room lamp turned on 30 sec, dims 2sec and turned off. Room lamp is turned on 20 minutes and delayed out. Room lamp is turned on 30 sec. 2.6 Tail lamp (parking lamp) auto cut function (1) In case of the tail lamp is turned on after ignition is on status, if the driver door is opened after ignition is turned off, the tail lamp is extinguished automatically. (2) In addition, the ignition is turned off after driver door is opened with ignition on condition, the tail lamp will be extinguished automatically too. (3) After automatic extinguish, if the tail lamp is turned on again, then, the tail lamp will be on (illuminating) and the auto cut function will be released. Ignition Auto cut Auto cut Tail lamp Driver door Open Close Tail lamp Chonan Technical Service Training Center 12

13 2.7 Ignition keyhole illumination (1) Ignition keyhole illumination is turned on when driver door or front passenger door is opened (at Ignition "off"). (2) Make sure that the output is "off' after delaying "on" state of ignition key hole illumination for 30 sec when the driver door is closed. (3) Make sure that the ignition key hole illumination is turned off if the ignition signal or transmitter lock signal (arm wait) input is accepted. Ignition Driver or passenger door Keyhole illumination T1: 30±1 seconds 2.8 Rear fog lamp control (1) Rear fog is turned on if rear fog is pushed under head lamp is turned on or front fog lamp is turned on after ignition is on and tail lamp is turned on condition. (2) Rear fog lamp is turned off if rear fog lamp is pushed again. (3) Rear fog is turned off unless the condition of IGN=on, tail lamp=on & head lamp=on (or front fog lamp=on) is met. Ignition Head lamp or front fog lamp Rear fog lamp 13 Chonan Technical Service Training Center

14 Rear fog lamp 2.9 Door lock / unlock control Central door lock (1) When driver door key is turned to lock, the door lock is controlled to lock from BCM. (2) When driver door key is turned unlock, the door unlock is controlled from BCM. (3) The BCM receives Lock/Unlock signal from the transmitter, and outputs door Lock or Unlock. (4) If door lock is turned to Lock/Unlock, all door lock/unlock output is on. Transmitter Lock Unlock Driver door key lock Driver door key unlock Central door lock Central door unlo ck Door lock T1 T1 T1 Door lock indicator Door unlock T1 T1 T1 Chonan Technical Service Training Center 14

15 T1: 0.5 sec The reminder unlock function by central door lock, keyless or door key (1) When door unlock is turned to Lock when ignition key is removed from the key cylinder and driver door is opened by central door lock / unlock, keyless or door key, the door unlock outputs for 1sec after 0.5sec. Key warning In Out Door Door lock Unlock output Open Close Unlock Lock T1 T4 T1 T1 T4 T2 T2 T2 T1:0 5s ±0 1s T2:1s ±0 1s T4:0 5sMAX Ignition key reminder (1) This function is not operated when the vehicle speed is faster than 3km/h. (2) At ignition is on, driver door or front passenger door are open and driver door or passenger door lock is on, all door unlock output is performed for 1second after 0.5s. (3) During unlock output is working for 1s by 2), if the lock state is maintained, then unlock output is performed 3-times at most. IGN Key Warning Switch Driver, Passenger door Driver, Passenger door lock Open Close Unlock Lock 15 Chonan Technical Service Training Center

16 Unlock 4 times T1:0.5sec T2: 1±0.2sec T3:0.5±0.1s T4 : 0.5±0.1s Crash door unlock (1) If the airbag signal is inputted to the BCM when the door is locked, the unlock signal is outputted immediately for safety. (2) During unlock output, even if ignition is changed on to off, the unlock output will be performed during remained time. (3) If driver or passenger, rear door lock is changed unlock to lock after unlock output, the unlock output is performed during T3 (5sec). (4) At crash door unlock condition, the Auto Door Lock function is not performed. Ignition Switch Air Bag Signal Normal Deployment Unlock Relay T1: 200ms T2: 40 ms T3: 5±0.5S Speed sensing auto door lock (1) If the vehicle speed is faster than 40km/h over 1sec, then door lock output is performed. However, if all doors are locked already or all doors are in failure, then the lock output is not performed. (2) If any one door is unlocking state after the lock output of 1) is performed, the lock output is performed at most 3 times. (3) After the 3 times outputs, if it is still in unlock state, the door is treated as in failure. The failure door is clear when ignition is off. Ignition Switch Vehicle Speed Over 40km/h Under 40km/h Chonan Technical Service Training Unlock Center 16 Lock

17 All Door Lock Switch T1: 2~3sec Dead lock /unlock control (1) Central door lock signal is output for 0.5s if Central door lock is performed with driver door key or transmitter. Then, dead lock signal is output for 0.5s after checking the state (after 200msec). (2) Not dead lock but only central door lock is performed after central door lock output for 0.5s when all doors are locked by central door lock. (3) Central door unlock signal is output for 0.5s after dead unlock is output for 0.5s and after 200ms when central door unlock is turned on by door key or transmitter after dead lock is output for 0.5s. (4) Not dead unlock but only central door unlock is performed when central door unlock is turned on by central door lock. (The driver door is performed door unlock & dead unlock mechanically when the driver door is unlock by key.) (5) Dead lock/unlock is performed when only door is closed. (But, exception is the state of dead lock by TX or door key. All doors unlock signal is output when door open by reminder function by TX or door key.) (6) Lock function is performed first when both lock/ unlock functions are performed at the same Time. (7) Priority is decided in order of TX> key > door lock in case of simultaneous input with Key / TX / door lock. If (7), (8) is happened simultaneously, priority is given to (8). (8) Dead lock is canceled at ignition key is inserted in the key cylinder and ignition key is on position. (9) In the condition of IGN ON, dead lock is not output when door key is turned to lock. (10) Door lock/unlock signal output is ignored by central door lock / unlock during dead lock/unlock signal output. * Functional output condition Relay output Relay 1 Relay 2 Relay 3 function 17 Chonan Technical Service Training Center

18 Central door lock Dead lock Dead unlock Central door unlock Key or TX signal Lock Unlock Central door lock/unlock Lock Unlock Relay 1 T1 Relay 2 T1 T2 T1 Relay 3 T1 T1:0 5s±0 1s T2:0.2s±0.05s 2.10 Power Window Timer (1) Turn the output of power window on when the ignition is "on. (2) Stop outputting "off" after maintaining for 30sec when the ignition is "off", (3) As soon as driver or passenger door is opened, the output come to "off" in No (2) state Ignition Switch Driver or Passenger Door Switch Open Close Power Window Relay T1: 30±3 sec Chonan Technical Service Training Center 18

19 2.11 Front fog lamp control (1) IGN 1 & tail lamp are turned on condition, if front fog is turned on then front fog lamp is on. (2) Above (1), front fog is turned on then front fog lamp is off. (3) Above (1), when IGN 1 is turned off then front fog lamp is off. IGN 1 signal Tail lamp Front fog lamp Front fog lamp 2.12 Auto light control (1) Light is turned on after 2sec±0.2sec when auto light sensor value is same as light on input v alue. (2) Light on value of sensor is based on the below table. (3) After head lamp is turned off, headlamp signal output is kept if headlamp & tail lamp on luminance condition is met at auto light is turned on. (7) After head lamp is turned off, head lamp signal output is immediately stopped if head lamp & tail lamp off luminance condition is met at auto light is turned on. (8) After head lamp is turned off, head lamp signal output is immediately stopped at tail lamp signal input. (9) After head lamp is turned off, head lamp signal output is stopped if there is no input of auto light or tail lamp. (10)Headlamp signal output is stopped when position is changed from auto to headlamp during head lamp on with auto light. 19 Chonan Technical Service Training Center

20 Headlamp & tail lamp 4.33V 3.23V 2.13 Headlamp escort function (1) If headlamp is lighting by headlamp or auto light, headlamp lighting is maintained when IGN1 is changed on to off. (2) Following state, headlamp lighting is turned off. (The condition of tail lamp lighting off follows tail lamp auto cut function.) * When driver door is open and close after 30sec. * When headlamp is turned on or not the case of auto light is turned on. * When driver door open state is maintained after 5minute. * When IGN1 ON IGN OFF and after 5minute. * When received TX door lock signal two times during output. < Case 1 > IGN1 SW H/Lamp Switch Driver door Open Close Chonan Technical Service Training Center 20

21 H/Lamp < Case 2 > 30sec±3sec IGN 1 SW Auto light Driver door H/Lamp Open Close 30 ±3 < Case 3 > IGN1 SW H/Lamp SW Driver door H/Lamp Open Close 30 ±3 < Case 4 > IGN1 SW Auto light Driver door Open Close 21 Chonan Technical Service Training Center

22 H/Lamp < 5Min 5Min < Case 5 > IGN1 SW Auto light Driver door Open Close H/Lamp 5 Min 2.14 Daytime running light (1) Tail lamp and head lamp are turned on, if IGN 2 & alternator L signal is turned on when head lamp & tail lamp are off condition. (2) After above 1), head lamp output is off when tail lamp is turned on. (3) After above 2), head lamp output is on when head lamp is turned on again. (4) If tail lamp is turned on condition and IGN 2 & alternator "L" signal is changed from off to on, only tail lamp is on. (5) Headlamp escort is performed when lamp is turn on by headlamp after IGN 1 is turned off, but head lamp escort is not performed when lamp is turn on by DRL function after IGN 1 off. (6) DRL is not performed when DRL deactivation condition is inputted. (Ground) Chonan Technical Service Training Center 22

23 When DRL deactivation input =(Open) IGN 2 Alternator L Headlamp T/Lamp H/Lamp Tail lamp 23 Chonan Technical Service Training Center

24 When DRL deactivation input = (GND) IGN 2 Alternator L Headlamp Relay T/Lamp H/Lamp Tail lamp Chonan Technical Service Training Center 24

25 2.15. Anti-theft warning system (ATWS) Disarm Initial Condition Event Action Alarm Mode Or Arm Mode Arm Wait Mode Auto Lock Timer 1 Auto Lock Timer 2 Auto Lock Timer 3 Alarm Rearm Pre arm * Open the driver door after pressing transmitter unlock button. * Open the driver door using key. * Insert the key in the key box. * Door lock knob is moved. * Open the driver door. * Any door is opened. * Insert the key in the key box. * If door lock is failed (30sec later). * Any door is opened. * Insert the key in the key box. * If door lock is failed (30sec later). * Any door is opened. * Insert the key in the key box. * If door lock is failed (30sec later). * If IGN is turned on 30 seconds. * Open the door using key. * If IGN is turned on 30 seconds. * Open the door using key. * Any door is opened or locked. * Insert the key in the key box. * Any door is unlocked when all doors are closed. Goes to disarm mode. (Hazard lamp: blinks 2 times.) Goes to disarm mode. (Hazard lamp: No blinking) Goes to disarm mode. (Hazard lamp: No blinking) Goes to disarm mode. (Hazard lamp: No blinking) Goes to disarm mode. (Hazard lamp: No blinking) Goes to disarm mode. (Hazard lamp: Stop blinking) Goes to disarm mode. (Hazard lamp: Stop blinking) (Inhibitor : Stop operating) Goes to disarm mode. (Hazard lamp: Stop blinking) Arm Mode Initial Condition Event Action Arm Mode Arm Wait Mode * When transmitter lock button is pressed. * Arm waiting timer is expired. (30 sec) No state changes of ATWS. (Hazard lamp: blinks 1 times.) Goes to arm mode. 25 Chonan Technical Service Training Center

26 Alarm Mode Initial Condition Event Action Arm Mode Rearm * Any door is opened. * Any door is opened. Goes to alarm mode. * Start inhibit is on to prohibit the starting engine. Goes to alarm mode. * Start inhibit is on to prohibit the starting engine. Mode Alarm mode All door es Open Close Start inhibit Burglar alarm horn Hazard lamp T1:27±2 sec T2 : 10±1sec Chonan Technical Service Training Center 26

27 Arm wait Event * All doors are closed (includes hood and tailgate). * Pressed transmitter door lock button. Action * Vehicle goes to arm mode 30 sec later. * Horn & hazard lamp: works 1time All doors are closed. Hood & tailgate are closed. All doors are locked. Hazard lamp and Horn are working. ARM WAIT 30 sec. later ARM Door, Hood or tailgate: open within 30 sec. DISARM Auto lock timer 1 Event * All doors are closed (includes hood and tailgate). * Pressed transmitter door unlock button. Action * After 30 sec. later, all doors will be locked (relock) and the vehicle goes to arm wait. * Hazard lamp: blinks 1time All doors are closed. Hood & tailgate are closed. All doors are unlocked. Hazard lamp blinks 2 times. 30 sec. later AUTO LOCK TIMER 1 All doors are locked. ARM WAIT Hazard lamp blinks 1 time. 30 sec. later ARM 27 Chonan Technical Service Training Center

28 Auto lock timer 2 Event * All doors are closed * Hood and tailgate are opened. * Pressed transmitter door unlock button. Action * After 30 sec. later, all doors will be locked (relock) and the vehicle goes to arm wait if hood or tailgate closed. ARM All doors are unlocked. Hazard lamp blinks 2 times. All doors are closed. Hood or tailgate is opened. AUTO LOCK TIMER 2 30 sec. later All doors: lock PREARM Auto lock timer 3 Initial Condition Event Action Arm mode Tail gate is unlocked. Goes to Auto lock timer 3 Auto lock timer 3. Pre arm * Tail gate is opened. * Auto lock timer 3 is expired. * Pressed transmitter unlock button. * Any door is opened. * Ignition key is turned on. * Tail gate is closed. (Hood and tail gate is closed condition) Goes to pre arm mode. Goes to disarm mode. Goes to arm wait mode. Chonan Technical Service Training Center 28

29 Pre arm Initial Condition Event Action Auto lock timer 2 * Disarm or alarm mode * Ignition key is removed from the key cylinder. * Any door is opened. All doors are locked by auto door lock timer function. * All doors are locked. (Transmitter lock button is pressed.) (Door key is turned to lock.) Goes go pre arm mode Goes go pre arm mode Rearm Event * After alarm mode is finished. * All doors are closed. Action * If any entrance is open, vehicle goes to alarm mode. (27 sec :, 10 sec: / 3 times) 3 times PREARM Vehicle is in Arm mode Any door is opened Hazard lamp & Horn are working. All doors are closed The restricted function of unlock by central door lock (1) Ignition key is turned off condition, door unlock is restricted by central door lock if all doors are locked & closed when transmitter lock button was pressed. (2) Ignition key is turned off condition, door unlock is restricted by central door lock if all doors are locked & closed when driver door was turned to lock by driver door key. (3) The restricted function of unlock is canceled when TX unlock signal output during the restricted function of central door lock. (4) The restricted function of unlock is canceled when door unlock signal output during the restricted function of central door lock. 29 Chonan Technical Service Training Center

30 Transmitter or key Lock All door states Central door lock Unlock Lock Unlock Lock Unlock Door lock T1 : 0.5s±0.1s T Security indicator (1) The security LED indicates that the vehicle security system is in arm mode. (2) At ignition key insert state, the security indicator is off. (3) Indicator operation condition Condition Disarm Arm Alarm Arm wait Rearm Auto lock timer 1 Auto lock timer 2 Auto lock timer 3 Pre arm Security indicator action At ignition key is removed from the key cylinder state, the security Indicator will be operated with on and off. The indicator will be on for 0.3 seconds and off for 2 seconds. The indicator will be on for 0.3 seconds and off for 2 seconds. The security indicator will be on. The indicator will be on for 0.3 seconds and off for 2 seconds. The indicator will be on for 0.3 seconds and off for 2 seconds. The indicator will be on for 0.3 seconds and off for 2 seconds. The indicator will be on for 0.3 seconds and off for 2 seconds. The indicator will be on for 0.3 seconds and off for 2 seconds. Chonan Technical Service Training Center 30