Tailgate Power Window Motor

WARNING: Counterbalance spring is under tension! Before removing the motor to test the no-load currents, use the control switch to move the regulator up, thus reducing spring tension. Then lock/clamp the sector gears securely.

To test the current draw of a power window motor, remove the tailgate trim panel. See DOOR TRIM PANEL (BRONCO & F-SERIES) under REMOVAL & INSTALLATION.

Disconnect the power window motor lead.
Supply power to motor lead connector with an ammeter. See Figure.
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.