Power Window Motor
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 1991 Ford RV Cutaway, 1991 Ford Pickup, 1991 Ford F-Super Duty, 1991 Ford Econoline, and 1991 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
To test the current draw of a power window motor, remove the door trim panel. See DOOR TRIM PANEL (BRONCO & F-SERIES) or DOOR TRIM PANEL (ECONOLINE) under REMOVAL & INSTALLATION.
- Disconnect the motor lead.
- Disconnect the regulator mechanism from the motor.
- Supply power to motor lead connector with an ammeter in series. See Fig 1.
- Operate the motor and observe the current draw. The current draw for the no-load test should not exceed four amps and should not fluctuate. Reversal of the motor wire connections will reverse the direction of motor rotation. Replace the motor if the current draw exceeds four amps. See WINDOW MOTOR under REMOVAL & INSTALLATION.