Diagnosis Procedure

POWER SUPPLY AND GROUND CIRCUIT

POWER WINDOW MAIN SWITCH (KING CAB) : 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 D7 terminal 5 and ground.
5 - Ground: Battery voltage
Is the measurement value within the specification?
YES- GO TO 2
NO- GO TO 3

2. 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 D7 terminal 14 and ground.





Is the inspection result normal?
YES- Check main power window and door lock/unlock switch output signal (front power window switch RH) GO TO 5
YES- Check main power window and door lock/unlock switch output signal (front power window switch
LH) GO TO 6
NO- Repair or replace harness.

3. CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH POWER SUPPLY CIRCUIT






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





4.Check continuity between BCM and ground.





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

4. CHECK BCM OUTPUT SIGNAL






1.Connect BCM.
2.Turn ignition switch ON.
3.Check voltage between BCM connector M20 terminal 68 and ground.
68 - Ground: Battery voltage
Is the measurement value within the specification?
YES- Check intermittent incident. Intermittent Incident.
NO- Replace BCM. Service and Repair.

5. CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH OUTPUT SIGNAL (FRONT

POWER WINDOW SWITCH RH)
1.Connect main power window and door lock/unlock switch.
2.Turn ignition switch ON.
3.Check voltage between main power window and door lock/unlock switch connector and ground.





Is the measurement value within the specification?
YES- Check intermittent incident. Intermittent Incident.
NO- Replace main power window and door lock/unlock switch. Power Window Main Switch.

6. CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH OUTPUT SIGNAL (FRONT

POWER WINDOW SWITCH LH)
1.Connect main power window and door lock/unlock switch.
2.Turn ignition switch ON.
3.Check voltage between main power window and door lock/unlock switch connector and ground.





Is the measurement value within the specification?
YES- Check intermittent incident. Intermittent Incident.
NO- Replace main power window and door lock/unlock switch. Power Window Main Switch.