Windows: Testing and Inspection

WIRING VOLTAGE TEST
The following circuit test sequence determines whether or not voltage is continuous through the body harness to switch.
1. Remove the driver door trim panel.
2. Carefully separate wiring harness connector from switch body.
3. Using a voltmeter, connect the ground lead to the Pin 10 of the wiring harness connector.
4. Using the positive lead, check Pin 1 of the harness connector for battery voltage. If OK, go to Window Switch Test below. If not OK, check 20 amp circuit breaker in the Junction Block, if the circuit breaker is OK, repair wire as necessary For wiring, specific connector type and location, refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds.

POWER WINDOW MOTOR TEST
1. Remove door trim panel.
2. Connect positive (+) lead from a test battery to either of the two motor terminals.
3. Connect negative (-) lead from test battery to remaining motor terminal.
4. The motor should now rotate in one direction to either move window up or down.
a. If window happens to already be in full UP position and motor is connected so as to move it in UP direction no movement will be observed.
b. Likewise, motor connected to move window in DOWN direction no movement will be observed if window is already in full DOWN position.
c. Reverse battery leads in Step 1 and Step 2 and window should now move. If window does not move, remove motor. (Refer to ELECTRICAL/POWER WINDOWS/WINDOW MOTOR - REMOVAL).
5. If window moved completely up or down, the test leads should be reversed one more time to complete a full window travel inspection.
6. If window does not move, check to make sure that it is free.
7. It is necessary that the window be free to slide up and down in the glass channels. If the window is not free to move up and down, the window lift motor will not be able to move the glass.
8. To determine if the glass is free is to disconnect the regulator from the glass lift plate. Remove the two attaching screws and slide the window up and down by hand.