For 1990-2009 cars

### Diagnostic Fault Information

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

### Circuit/System Description

The power window/mirror switch and rear window switch control the up/down operation of the rear power windows when requested. The power window/mirror switch power supply is controlled by the RAP (retained accessory power) relay.

### Reference Information

#### Schematic Reference

Moveable Window Schematics Power Window Schematics

#### Connector End View Reference

Component Connector End Views

#### Electrical Information Reference

• | Circuit Testing .

• | Connector Repairs .

• | Testing for Intermittent Conditions and Poor Connections .

• | Wiring Repairs .

### Circuit/System Verification

1. Verify that the Retained Accessory Power (RAP) circuit is functioning normally.

⇒ | If the RAP is not functioning normally refer to Retained Accessory Power (RAP) Description and Operation .

2. Verify that the opposite rear window is working from its rear power window switch.

### Power Window Switch Testing

1. Make sure that the window lock-out button on the power window/mirror switch is not selected.
2. Ignition Off, disconnect the power window switch harness connector.
3. Verify less than 1 ohm of resistance from the ground circuit terminal 2 and ground.

⇒ | If the resistance is greater than the specified value, repair the ground circuit for an open/high resistance.

4. Ignition ON, test for 12 volts between the supply voltage circuit terminal 4 and ground.

⇒ | If the voltage is not between 9-16 volts, repair the supply voltage circuit for an open/high resistance.

5. Connect a fused jumper wire between supply voltage circuit 4 and signal terminal 5.
6. Connect a fused jumper wire between supply ground circuit 2 and terminal 1, ignition On.

⇒ | If the window opens replace the power window switch.

7. Test the power/ground supply circuits from the rear power window switch to the window motor for a short to ground, short to voltage or an open/high resistance.

⇒ | If all circuits test normal, replace the window motor.

### Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

• | Rear Side Door Window Switch Replacement .

• | Rear Side Door Window Regulator Motor Replacement .