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.
NG1 >> With power windows, GO TO 2.
NG2 >> Without power windows, GO TO 5.
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 connector D11 (B) terminal 18 and connector D11 (B) terminal 17, and connector D5 (A) terminal 6 and connector D11 (B) terminal 17.










4. Check continuity between power window and door lock/unlock switch RH connector D104 (C) 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 D11 terminal 17and ground.

17 - Ground : Continuity should exist.






3. Check continuity between power window and door lock/unlock switch RH connector D104 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 D11 (B) terminal 18 or power window and door lock/unlock switch RH connector D104 (C) terminal 1.






3. Check continuity between BCM connector M19 (A) 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 D5 (B) terminal 6 or power window and door lock/unlock switch RH connector D104 (C) terminal 2.





5. Check continuity between BCM connector M19 (A) 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.





5. CHECK DOOR LOCK/UNLOCK SWITCH LH
1. Turn ignition switch OFF.
2. Disconnect door lock/unlock switch LH.





3. Check continuity between door lock/unlock switch LH terminals 1, 2 and 5.





OK or NG
OK >> GO TO 6.
NG >> Replace door lock/unlock switch LH.
6. CHECK DOOR LOCK/UNLOCK SWITCH GROUND HARNESS





Check continuity between door lock/unlock switch connector D6 terminal 5 and ground.
5 - Ground : Continuity should exist.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace harness.
7. CHECK DOOR LOCK SWITCH CIRCUIT
1. Disconnect BCM.
2. Check continuity between BCM connector M19 (A) terminal 45 and door lock/unlock switch LH connector D6 (B) terminal 1.






1 - 45 : Continuity should exist.

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

45 - Ground : Continuity should not exist.

4. Check continuity between BCM connector M19 (A) terminal 46 and door lock/unlock switch LH connector D6 (B) terminal 2.






2 - 46 : Continuity should exist.

5. Check continuity between BCM connector M19 (A) 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.