Door Lock and Unlock Switch Check

POWER DOOR LOCK SYSTEM


Door Lock and Unlock Switch Check

1.CHECK DOOR LOCK AND UNLOCK INPUT SIGNAL
With CONSULT-III
Check door lock and unlock switch ("CDL LOCK SW" and "CDL UNLOCK SW") in DATA MONITOR mode with CONSULT-III.





Without CONSULT-III
Check voltage between BCM connector and ground










OK or NG
OK >> Door lock and unlock switch is OK.
NG >> GO TO 2
2.CHECK DOOR LOCK/UNLOCK SWITCH
1. Turn ignition switch OFF.
2. Disconnect door lock/unlock switch.





3. Check continuity between main power window and door lock/unlock switch terminals 6, 17 and 18.










4. Check continuity between power window and door lock/unlock switch RH terminals 1, 2 and 3.





OK or NG
OK >> GO TO 3
NG >> Replace door lock/unlock switch.
3.CHECK DOOR LOCK/UNLOCK SWITCH GROUND HARNESS
1. Disconnect main power window and door lock/unlock switch or power window and door lock/unlock switch RH.





2. Check continuity between main power window and door lock/unlock switch connector D8 terminal 17 and ground.

17 - Ground : Continuity should exist.





3. Check continuity between power window and door lock/unlock switch RH connector D105 terminal 3 and ground

3 - Ground : Continuity should exist.

OK or NG
OK >> GO TO 4
NG >> Repair or replace harness.
4.CHECK DOOR LOCK SWITCH CIRCUIT
1. Disconnect BCM.
2. Check continuity between BCM connector M19 (A) terminal 45 and main power window and door lock/unlock switch connector D8 (B) terminal 18 or power window and door lock/unlock switch RH connector D105 (C) terminal 1.









3. Check continuity between BCM connector M19 terminal 45 and ground.

45 - Ground : Continuity should not exist.

4. Check continuity between BCM connector M19 (A) terminal 46 and main power window and door lock/unlock switch LH connector D7 (B) terminal 6 or power window and door lock/unlock switch RH connector D105 (C) terminal 2.





5. Check continuity between BCM connector M19 terminal 46 and ground.

46 - Ground : Continuity should not exist.

OK or NG
OK >> Replace BCM. Refer to Service and Repair .
NG >> Repair or replace harness.