Driver & Front Passenger Windows

Disconnect window motor harness connector. Connect DVOM set to measure frequency between terminals No. 4 and 6 of motor connector. See Fig 1. Using jumper wires, connect battery positive to terminal No. 1 and battery negative to terminal No. 2. Ensure a pulse is generated as window motor operates.
Reverse polarity of voltage to motor. Ensure a pulse is generated as window motor operates in opposite direction. If operation is not as specified, replace window motor.

Fig 1: Testing Jam Protection Pulse Switch (Driver & Front Passenger Windows)