Principles of Operation

PRINCIPLES OF OPERATION

Power Window Control

NOTE: Battery voltage and ground must be removed before disconnecting the smart junction box (SJB) connectors to avoid setting false DTCs.

The power window one-touch up/down operation is controlled by the window motors. This feature functions only when the key is in the ON or ACC positions. The one-touch up/down operation is requested by pulling/pressing the window control switch up or down tot he second detent. When the second detent of the window control switch is pulled/pressed, voltage is sent to the window motor on the auto circuit and the commanded up or down circuit. Depending on which (up or down) circuit carries voltage, the window motor operates the window to the commanded one-touch up or down direction.

The window motor maintains operation until:
- 7 seconds expire.
- the voltage at the window motor drops below 9 volts.
- a motor stall is detected by monitoring the current draw.

Pulling or pressing the window control switch to the first detent stops the one-touch up/down operation. Pulling or pressing the window control switches to the first detent operates the windows in a proportional mode. Each window motor has a dedicated ground circuit which provides ground to the window motor(s) for one-touch up/down or proportional up/down operation.