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Home >> Jeep >> 2002 >> Grand Cherokee Overland >> Repair and Diagnosis >> Body & Frame >> Power Windows >> Component Tests >> Power Window Motor

Power Window Motor

NOTE: Before performing power window motor test, ensure power window switch is functioning properly. See POWER WINDOW SWITCH . Window glass must be free to slide up and down for power window motor to function properly. If glass does not move freely, motor will overload and trip the circuit breaker.
  1. Remove door trim panel of window motor to be tested. See DOOR TRIM PANEL  under REMOVAL & INSTALLATION. Disconnect power window motor connector. Using a 12-volt power source, connect 12 volts to one terminal of motor connector and ground to other terminal. Motor should operate.
    NOTE: If window is at full extent of its travel in full up or full down position, motor is designed to no longer operate in that direction.
  2. Reverse 12-volt power source connections at motor connector. Motor should operate in opposite direction. If motor operates as specified, check wiring harness between power window switch and window motor. Also, check window travel through complete opening and closing cycle. Check window for sticking, binding or improper adjustment. If window travel is not as specified, repair as necessary.
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