With Intelligent Key System

DOOR LOCK AND UNLOCK SWITCH:_:DRIVER SIDE





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, With Intelligent Key System.
1.CHECK DOOR LOCK/UNLOCK SWITCH INPUT SIGNAL
With CONSULT-III
Check main power window and door lock/unlock switch ("CDL LOCK SW", "CDL UNLOCK SW") in DATA
MONITOR mode in CONSULT�III.
- When main power window and door lock/unlock switch is turned to LOCK:





- When main power window and door lock/unlock switch is turned to UNLOCK:





Without CONSULT-III
1. Remove key from ignition key cylinder.
2. Using an oscilloscope, check the signal between BCM connector M18 terminal 22 and ground when the main power window and 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
1. Turn ignition switch OFF.
2. Using the vehicle operational Intelligent Key, press and hold the UNLOCK button for more than 3 seconds.





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





2. Check continuity between main power window and door lock/unlock switch connector D8 terminal 17 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 14.










3. 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.
NO - Repair or replace harness.