King Cab

DOOR LOCK AND UNLOCK SWITCH - KING CAB





Description
Transmits door lock/unlock operation to BCM.




Component Function Check
1.CHECK FUNCTION
With CONSULT-III
Check CDL LOCK SW, CDL UNLOCK SW in Data Monitor mode with CONSULT-III.





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




Diagnosis Procedure
Regarding Wiring Diagram information, Wiring Diagram - King Cab.
1.CHECK DOOR LOCK/UNLOCK SWITCH INPUT SIGNAL
With CONSULT-III
Check door lock/unlock switch ("CDL LOCK SW", "CDL UNLOCK SW") in DATA MONITOR mode in CONSULT-III. CONSULT-III Function.
- When door lock/unlock switch is turned to LOCK:






- When door lock/unlock switch is turned to UNLOCK:





Without CONSULT-III
1. Remove key from ignition key cylinder.
2. Check the signal between BCM connector M18 terminal 22 and ground with oscilloscope when door lock/unlock switch is turned to LOCK or UNLOCK.
3. Make sure the signals which are shown in the figure below can be detected during 10 seconds just after the door lock/unlock switch is turned to LOCK or UNLOCK.










Is the inspection result normal?
YES - Door lock and unlock switch circuit is OK.
NO - GO TO 2
2.CHECK BCM OUTPUT SIGNAL
Perform "POWER REMOTE DOWN SET") in ACTIVE TEST mode for "MULTIREMOTE ENT" with CONSULT-III. Testing and Inspection.






Is the inspection result normal?
YES - GO TO 3
NO - Replace BCM. Service and Repair.
3.CHECK DOOR LOCK/UNLOCK SWITCH GROUND HARNESS
1. Turn ignition switch OFF.
2. Disconnect main power window and door lock/unlock switch or power window and door lock/unlock switch
RH.





3. Check continuity between main power window and door lock/unlock switch connector D7 terminal 15 and ground.










4. Check continuity between power window and door lock/unlock switch RH connector D105 terminal 11 and ground.





Is the inspection result normal?
YES - GO TO 4
NO - Repair or replace harness.
4.CHECK POWER WINDOW SERIAL LINK CIRCUIT
1. Disconnect BCM.
2. Check continuity between BCM connector M18 terminal 22 and main power window and door lock/unlock switch connector D7 terminal 12.















3. Check continuity between BCM connector M18 terminal 22 and power window and door lock/unlock switch RH connector D105 terminal 16.










4. Check continuity between BCM connector M18 terminal 22 and ground.






Is the inspection result normal?
YES - Replace main power window and door lock/unlock switch or power window and door lock/unlock switch
RH.
NO - Repair or replace harness.