King Cab

KEY CYLINDER SWITCH:_:KING CAB





Description
The main power window and door lock/unlock switch detects condition of the door key cylinder switch and transmits to BCM as the LOCK or UNLOCK signal.




Component Function Check
1.CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL
Check "KEY CYL LK-SW" AND "KEY CYL UN-SW" in DATA MONITOR mode for "POWER DOOR LOCK
SYSTEM" with CONSULT-III.





Is the inspection result normal?
YES - Key cylinder switch is OK.
NO - SEE Diagnosis Procedure.




Diagnosis Procedure
Regarding Wiring Diagram information, Vehicle Security System.
1.CHECK DOOR KEY CYLINDER SWITCH LH
With CONSULT-III
Check front door lock assembly LH (key cylinder switch) ("KEY CYL LK-SW") and ("KEY CYL UN-SW) in
DATA MONITOR mode with CONSULT�III. .
- When key inserted in front key cylinder is turned to LOCK:






- When key inserted in front key cylinder is turned to UNLOCK:






Without CONSULT-III
Check voltage between main power window and door lock/unlock switch connector D15 terminals 6, 7 and ground.










Is the inspection result normal?
YES - Front door lock assembly LH (key cylinder switch) signal is OK.
NO - GO TO 2
2.CHECK DOOR KEY CYLINDER SWITCH LH GROUND HARNESS
1. Turn ignition switch OFF.
2. Disconnect front door lock assembly LH (key cylinder switch).





3. Check continuity between front door lock assembly LH (key cylinder switch) connector (A) D14 terminal 5 and body ground.





Is the inspection result normal?
YES - GO TO 3
NO - Repair or replace harness.
3.CHECK DOOR KEY CYLINDER SWITCH LH





Check continuity between front door lock assembly LH (key cylinder switch) terminals.





Is the inspection result normal?
YES - GO TO 4
NO - Replace front door lock assembly LH (key cylinder switch). Removal And Installation.
4.CHECK DOOR KEY CYLINDER HARNESS
1. Disconnect main power window and door lock/unlock switch.





2. Check continuity between main power window and door lock/unlock switch connector (A) D15 terminals 6, 7 and front door lock assembly LH (key cylinder switch) connector (B) D14 terminals 1, 6 and body ground.






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