Power Windows: Other Isuzu Trooper II

ALL WINDOWS INOPERATIVE

Check for blown ELEC IG fuse. Check for faulty circuit breaker or power window relay. Check for faulty master power window switch. Inspect power window circuit for an open or short. Ensure ground connections are clean and tight.

DRIVER-SIDE WINDOW INOPERATIVE

Check for blown ELEC IG fuse. Check for faulty circuit breaker or power window relay. Check for faulty master power window switch. Inspect power window circuit for an open or short. Ensure ground connections are clean and tight.

AUTO-DOWN FEATURE INOPERATIVE

Check for faulty master window switch.

FRONT PASSENGER WINDOW INOPERATIVE

Check for faulty master or right front power window switch. Check for faulty right front window motor. Inspect right front power window circuit for opens or shorts.

ONE OR BOTH REAR PASSENGER WINDOWS INOPERATIVE

Check for faulty master power window switch. Check for faulty left or right rear power window switch or motor. Inspect left or right rear power window circuits for an open or short.

* PLEASE READ FIRST *

Note. Before any testing, ensure battery is fully charged and electrical connections are clean and tight.

Note. Refer to WIRING DIAGRAMS to assist testing procedures.

Scheme 3

Scheme 4

Scheme 5

Left Front

1. Turn ignition off. Remove left front power window switch from door trim panel. Disconnect power window switch harness connectors. Turn ignition on. Using a voltmeter, check voltage between harness connector "A", terminal No. 7 (Blue/Black wire) and ground, then terminal No. 10 (Light Green/White wire) and ground. (Scheme 3)and (Scheme 4). Battery voltage should be present at each terminal.
2. Turn ignition off. Using an ohmmeter, check for continuity between harness connector "A", terminal No. 1 (Black wire) and ground. Continuity should be present. Check for continuity between harness connector "A", terminals No. 5 (Blue/White wire) and No. 6 (Blue wire). Continuity should be present.
3. Check for continuity between harness connector "B", terminal No. 5 (Red/Yellow wire) and ground. (Scheme 3)and (Scheme 4). Continuity should be present.

Right Front

1. Turn ignition off. Remove right front power window switch from door trim panel. Disconnect power window switch harness connector. Turn ignition on. Using a voltmeter, check voltage between harness connector "A", terminal No. 2 (Red/Yellow wire) and ground, then terminal No. 5 (Blue/Black wire) and ground. (Scheme 3)and (Scheme 4). Battery voltage should be present at each terminal.
2. Turn ignition off. Using an ohmmeter, check for continuity between harness connector "A", terminal No. 1 (Black wire) and ground. Continuity should be present. Check for continuity between harness connector "A", terminals No. 6 (Blue/Yellow wire) and No. 7 (Brown/Yellow wire). Continuity should be present.

Right & Left Rear

1. Turn ignition off. Remove right or left rear power window switch from door trim panel. Disconnect power window switch harness connector. Turn ignition on. Using a voltmeter, check voltage between harness connector terminal No. 2 (Red/Yellow wire) and ground, then terminal No. 4 (Blue/Black wire) and ground. (Scheme 5) Battery voltage should be present at each terminal.
2. Turn ignition off. Using an ohmmeter, check for continuity between harness connector terminal No. 3 (Black wire) and ground. Continuity should be present. Check for continuity between harness connector terminals No. 5 (Blue/Red wire) and No. 6 (Brown/Red wire). Continuity should be present.

POWER WINDOW MOTOR