Power Windows Malfunction Opel GT II

Power Windows Malfunction

Diagnostic Instructions

Diagnostic Fault Information

Circuit/system Description

When the ignition switch is in the RUN or ACCY position and the driver or passenger window switch is pressed in the down position, voltage is applied to the appropriate window motor causing that window to open. When the driver or passenger window switch is pulled in the up position, voltage is applied to the appropriate window motor in the opposite direction causing that window to close.

Reference Information

Schematic Reference

Moveable Window Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Power Windows Description and Operation

Electrical Information Reference (Except Opel Gt)

Circuit/system Verification

1. Ignition ON, command the driver window UP and DOWN using the driver window switch. The driver window should perform the UP and DOWN functions.
2. Command the passenger window UP and DOWN using the RF window switch on the driver master control and the passenger door window switch. The passenger window should perform the UP and DOWN functions from each switch.
3. Command the express down of the driver door window by pressing the driver window switch past the first detent and releasing. The driver window should perform the express down function.

Circuit/system Testing

Driver Window Malfunction

1. Ignition OFF, disconnect the harness connector at the driver window switch.
2. Test for less than 1 ohm between the ground circuit terminal F and ground.
3. Ignition ON, verify that a test lamp illuminates between the RAP circuit terminal C and ground.
4. Ignition OFF, connect the harness connector at the driver window switch and disconnect the harness connector at the driver window motor.
5. Test for less than 1 ohm between the control circuit terminal B and ground.
6. Test for less than 1 ohm between the control circuit terminal A and ground.
7. Connect a test lamp between control circuit terminal B and control circuit terminal A.
8. Ignition ON, command the driver door window UP and DOWN using the driver window switch. The test lamp should illuminate when commanding the UP and DOWN states.
9. If all circuits tests normal, test or replace the driver window motor.

Front Passenger Window Malfunction

1. Ignition OFF, disconnect the harness connector at the front passenger window switch.
2. Ignition ON, verify that a test lamp illuminates between the RAP circuit terminal A and ground.
3. Ignition OFF, test for less than 1 ohm between the control circuit terminal H and ground.
4. Test for less than 1 ohm between the control circuit terminal D and ground.
5. Connect a test lamp between control circuit terminal H and control circuit terminal D.
6. Ignition ON, command the front passenger door window UP and DOWN by using the RF window switch on the driver master control. The test lamp should illuminate when commanding the UP and DOWN states.
7. Ignition OFF, connect the harness connector at the front passenger window switch and disconnect the harness connector at the front passenger window motor.
8. Test for less than 1 ohm between the control circuit terminal A and ground.
9. Test for less than 1 ohm between the control circuit terminal B and ground.
10. Connect a test lamp between control circuit terminal B and control circuit terminal A.
11. Ignition ON, command the front passenger door window UP and DOWN using the passenger window switch. The test lamp should illuminate when commanding the UP and DOWN states.
12. If all circuits test normal, test or replace the front passenger window motor.

Component Testing

Driver Window Switch

1. Ignition OFF, disconnect the harness connector at the driver window switch.
2. Test for infinite resistance between the control terminals A and D and the RAP terminal C with the RF window switch in the inactive position.
3. Test for less than 2 ohms between the control terminal A and the RAP terminal C with the RF window switch in the up position.
4. Test for less than 2 ohms between the control terminal D and the RAP terminal C with the RF window switch in the down position.
5. Test for infinite resistance between the control terminals G and H and the RAP terminal C with the driver window switch in the inactive position.
6. Test for less than 2 ohms between the control terminal G and the RAP terminal C with the driver window switch in the up position.
7. Test for less than 2 ohms between the control terminal H and the RAP terminal C with the driver window switch in the down position.
8. If greater than the specified range, replace the driver window switch.

Passenger Window Switch

1. Ignition OFF, disconnect the harness connector at the passenger window switch.
2. Test for infinite resistance between the control terminals G and H and the RAP terminal A with the switch in the inactive position.
3. Test for less than 2 ohms between the control terminal G and the RAP terminal A with the switch in the up position.
4. Test for less than 2 ohms between the control terminal H and the RAP terminal A with the switch in the down position.

Window Motor

1. Ignition OFF, disconnect the harness connector at the appropriate window motor.
2. Install a 30-amp fused jumper wire between the control terminal A and 12 volts. Momentarily install a jumper wire between the control terminal B and ground. The window motor should perform the UP or DOWN function
3. Reverse the jumper wires; the window motor should perform the DOWN or UP function.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.