Windows: Description and Operation

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.

Master Window Control Switch

With the Ignition Switch in "ACC" or "RUN", battery voltage is applied to the Master Window Control Switch through Circuit Breaker 14 and the 170 (R/LB) wires.

When any of the "UP" switches in the Master Window Control Switch not associated with One Touch Down are operated, battery voltage is applied to the Window Motor. The Window Motor is grounded through the "DN" contact in the Master Window Control Switch. The Motor runs to drive the window up. When any of the "ON" Switches in the Master Window Control Switch are operated, battery voltage is applied to the Window Motor in the opposite direction.

The Window Motor is grounded through the "UP" contact in the Master Window Control Switch, and the Motor runs to drive the window down.

One Touch Window Down Operation

The One Touch Window Down function is a convenience feature that allows the left front window to be fully opened when the Left Front Window "ON" Switch is operated for less than 0.4 seconds and then released. Actuating the LH Front Window ON Switch for more than 0.4 seconds provides conventional power window operation.