EXPRESS DOWN Window Operation

The EXPRESS DOWN window function is a convenience feature that allows you to fully open the left front window by holding the left front power window switch down for more than 0.3 seconds then releasing. You may stop the window at any position by momentarily pressing the UP or DOWN switch. The power window control module receives the power at terminal A under the following conditions:
- The ignition switch is in the ACCY position.
- The ignition switch is in the RUN position.
- During the retaining accessory power (RAP).

When the left front window switch is held down for more than 0.3 seconds and released, the timer and control unit detects this at the down input terminal. The relay control switch closes, completing the coil circuit through the UP switch in the left front power window switch to ground. The relay contacts close. The LH front power window motor receives battery voltage. Terminal A of the motor is grounded through the left front power window switch UP contact.

When the window is fully down, the motor stall current is detected at the current sense input of the timer and control unit. The relay control switch opens, de-energizing the coil and disconnecting the power to the motor. The motor also stops 10-30 seconds after the DOWN switch is pushed.

The timer and control unit detects at the input terminal if the left front power window switch is pushed while operating in the EXPRESS DOWN mode, opening the relay control switch. Terminal A of the motor is also now not grounded through the left front power window switch. The window stops moving down. If the power input at terminal A of the power window control module is lost, the power window still operates. However, the power window operates without the express down feature.