Windows: Description and Operation

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.

LH Front Window Switch Operation
When the Ignition Switch is in "RUN," battery voltage is applied to the LH Front Window Switch through the Power Window Circuit Breaker C and CKT 141. When any of the UP Switches in the LH Front Window Switch are operated, battery voltage is applied to the Window Regulator Motor. The Window Regulator Motor is grounded through the DN contact in the LH Front Window Switch. The motor runs to drive the window up. When any of the DN Switches in the LH Front Window Switch are operated battery voltage is applied to the Window Regulator Motor in the opposite direction. The Window Regulator Motor is grounded through the UP contact in the LH Front Window Switch. The motor runs to drive the window down.

Express Down Feature
If the LH Front DN Switch in the LH Front Window Switch is momentarily pressed down past the first detent, the window will travel to the fully down position. To stop the window, press the LH Front UP Switch.

Lockout Switch Operation (4 Door)
The LH Front Window Switch contains a Lockout Switch which will remove battery voltage from the other window switches. This will not allow the operation of the windows from their individual switches. The windows can still be operated as normal from the LH Front Window Switch.

Window Switch Operation
When the Ignition Switch is in "RUN," battery voltage is applied to the window switches through the Power Window Circuit Breaker C (CKT 141) (2 Door) and the LH Front Window Switch (CKT 1307) (4 Door) to the switches. When the UP Switch in the RH Front Window Switch is operated, battery voltage is applied to the RH Front Window Regulator Motor through the DK BLU (CKT 666) wire. The motor is grounded through the BRN wire (CKT 667) and the DN contact in the RH Front Window Switch, TAN wire (CKT 167), and the DN contact in the LH Front Window Switch. The motor runs to drive the window up. When the DN Switch is operated, battery voltage is applied to the RH Front Window Regulator Motor in the opposite direction through the BRN wire (CKT 667). The Motor is grounded through the DK BLU wire (CKT 666), the UP contact in the RH Front Window Switch, the DK BLU wire (CKT 1307), and the UP contact in the LH Front Window Switch. The motor runs to drive the window down. The other windows operate similarly from their individual window switches.

All Windows Automatic Down (AWAD) Feature (convertible Only)
The AWAD feature causes all windows to go completely down after a single, momentary touch (at least 1/3 second) of the two rear window switches on the driver's master control to the "DOWN" position. When the AWAD feature is activated, a solenoid in the AWAD Module holds the switches in the "DOWN" position. The windows may be stopped by momentarily pushing the switches to the "UP" position.

The AWAD Module monitors window motor current through resistors. It will release the DN Switches and stop the windows when the current increases or when it becomes zero. An increase in current occurs when motors stall at the end of their travel. Zero current occurs when switches are pushed to the "UP" position, removing ground from the motors.