Power Window Motor: Testing and Inspection

WINDOW MOTOR

1. Remove door trim panel
2. Connect positive (+) lead from a test battery to the window motor(s) that is inoperative 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 and window should now move. If window does not move, check for binding or obstructions. If no binding is present, replace the motor.
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. The window motor(s) are replaced with the window regulator. If they are found to be faulty, a complete replacement will be necessary Front Door Window Regulator - Removal.