Caution

^ Before performing any diagnostics, make sure the lock out switch is in the OFF position.
^ Each window regulator motor contains an electronic circuit breaker. The resistance in the window regulator motor increases if the motor is overloaded and the resistance will return to normal after voltage is removed from the motor terminals.
^ A momentary actuation of the window switch can cause the window to move directly to the fully open position. When working on the door leave the ignition off whenever possible. Note where the window switch is so you do not accidentally hit it. To stop the window, press the LF window switch UP.

A Permanent Magnet (PM) motor operates each of the power windows. Each motor raises or lowers the glass when voltage is supplied to it. The direction the motor turns depends on the polarity of the supply voltage. The window switches control the supply voltage polarity.

Each motor is protected by a built-in circuit breaker. If a window switch is held too long with the window obstructed or after the window is fully up or down, the circuit breaker opens the circuit. The circuit breaker resets only after voltage is removed from the motor.