Door Lock And Unlock Switch

DOOR LOCK AND UNLOCK SWITCH

Description

Transmits door lock/unlock operation to BCM.


Component Function Check


1. CHECK FUNCTION

With CONSULT
Check CDL LOCK SW, CDL UNLOCK SW in Data Monitor mode with CONSULT.





Is the inspection result normal?
YES- Door lock and unlock switch is OK.
NO- .


Diagnosis Procedure

Regarding Wiring Diagram information, [1][2]Electrical Diagrams.

1. CHECK DOOR LOCK/UNLOCK SWITCH INPUT SIGNAL

With CONSULT
Check door lock/unlock switch ("CDL LOCK SW", "CDL UNLOCK SW") in DATA MONITOR mode in CONSULT. CONSULT Function.
- When door lock/unlock switch is turned to LOCK:
CDL LOCK SW: ON
- When door lock/unlock switch is turned to UNLOCK:
CDL UNLOCK SW: ON
Without CONSULT
Check voltage between BCM connector M19 terminals 45, 46 and ground.










Is the inspection result normal?
YES- Door lock/unlock switch circuit is OK.
NO- 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 10, 11 and 14.





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





Is the inspection result normal?
YES- GO TO 3
NO- 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 D7 terminal 14 and ground.










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





Is the inspection result normal?
YES- GO TO 4
NO- Repair or replace harness.

4. CHECK DOOR LOCK SWITCH CIRCUIT

1.Disconnect BCM.
2.Check continuity between BCM connector M19 terminal 45 and main power window and door lock/unlock switch connector D7 terminal 10 or power window and door lock/unlock switch RH connector D105 terminal 1.










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





4.Check continuity between BCM connector M19 terminal 46 and main power window and door lock/unlock switch LH connector D7 terminal 11 or power window and door lock/unlock switch RH connector D105 terminal 2.










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





Is the inspection result normal?
YES- GO TO 5
NO- Repair or replace harness.

5. CHECK BCM OUTPUT VOLTAGE

1.Connect BCM.





2.Check voltage between BCM connector M19 terminals 45, 46
and ground.





Is the inspection result normal?
YES- Check condition of the harness and connector.
NO- Replace BCM. Service and Repair.