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Power Window System

Each power window is moved by a single permanent magnet motor. The direction the motor turns depends on the polarity of the supply voltage. The control switches control the supply voltage polarity.

Switches for controlling all power windows are located at the driver's door. The passenger window switch controls only the window at the passenger's door.

The motors have self resetting circuit breakers built in that allows the motor to be stalled without damage. There are no travel limit switches.

The window wiring harness starts at the fuse block and routes to the left and right doors along the instrument panel. The harness then routes into the left and right front doors. See Fig 1 .

Fig 1: Identifying Power Window Harness
G00116484Courtesy of GENERAL MOTORS CORP.