Left Front Window Switch Operation

When the ignition switch is in the accessory or on position, battery voltage is applied to the left window switch through the PWR WINDOWS PWR SUNROOF circuit breaker and to circuit 143. See WIRING DIAGRAMS  .

When any of the up switches in the left window switch are operated, battery voltage is applied to the window regulator motor. The window regulator motor is grounded through the down contact in the left window switch. The motor runs to drive the window up. When any of the down switches in the left 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 left window switch. The motor runs to drive the window down.