Diagnosis Procedure

POWER SUPPLY AND GROUND CIRCUIT CHECK (KING CAB)

POWER WINDOW MAIN SWITCH : Diagnosis Procedure

Regarding Wiring Diagram information, King Cab.

1. CHECK POWER SUPPLY CIRCUIT






1.Turn ignition switch ON.
2.Check voltage between main power window and door lock/
unlock switch connector and ground.





Is the measurement value within the specification?
YES- GO TO 3
NO- GO TO 2

2. CHECK HARNESS CONTINUITY






1.Turn ignition switch OFF.
2.Disconnect BCM and main power window and door lock/unlock switch.
3.Check continuity between BCM connector (A) and main power window and door lock/unlock switch connector (B).





4.Check continuity between BCM connector (A) and ground.





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

3. CHECK GROUND CIRCUIT






1.Turn ignition switch OFF.
2.Disconnect main power window and door lock/unlock switch.
3.Check continuity between main power window and door lock/
unlock switch connector and ground.





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

4. CHECK BCM OUTPUT SIGNAL






1.Connect BCM.
2.Turn ignition switch ON.
3.Check voltage between BCM connector and ground.





Is the measurement value within the specification?
YES- GO TO 5
NO- Replace BCM. Service and Repair.

5. CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH

Check main power window and door lock/unlock switch.
Is the inspection result normal?
YES- Check intermittent incident. Intermittent Incident.
NO- Replace main power window and door lock/unlock switch. Power Window Main Switch.