Liftgate Window Release Circuit Description. GMC Truck GMC K Pickup

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2000 🢒 GMC K Pickup - 4WD 🢒 Body and Accessories 🢒 Body Rear End 🢒 Liftgate Window Release Circuit Description

Liftgate Window Release Circuit Description Except Luxury

This system will only operate if the vehicle is in the PARK or NEUTRAL position. This is done so that the liftgate cannot be released while the vehicle is moving. The system incorporates a liftgate release switch, liftgate release motor, and the park/neutral position switch.Voltage to the switch is supplied through the CKT 640 (ORN) from the CIG LTR fuse. When the liftgate release switch is depressed, voltage is supplied through CKT 1576 (BLK) to the liftgate release motor. Ground for the liftgate release motor comes from the G105 to the park/neutral position switch through CKT 150 (BLK). If the transmission is in the PARK or NEUTRAL, the ground path is opened through CKT 1737 (YEL) to the liftgate release motor and the liftgate is released.

On vehicle equipped with remote keyless entry, the liftgate release switch can be bypassed by actuating the button on the remote transmitter. This signals the remote control door lock receiver to supply voltage to the liftgate release motor.

Liftgate Window Release Circuit Description Luxury

The Liftgate can be released one of two ways, either by pressing the liftgate release switch or by using the remote keyless entry system. Power for the circuit is provided by the CIG LTR fuse 13, at all times. Power is avaiable at the Liftgate Release Switch and the Liftgate Release Relay. The Liftgate Release Switch, located right of the IP Console, when activated sends power to the Liftgate Release Motor through CKT 1576 (BLK). The Liftgate Release Relay sends power to the Liftgate Release Motor through the same circuit when energized by the Body Control Module through CKT 253 (BRN). Ground for the Liftgate Release Relay is provided by CKT 150 (BLK) to ground G400. To complete the circuit for the Liftgate Release Motor, CKT 1737 (YEL) connects to the Park/Neutral Position Switch. The Park/Neutral Position Switch must be in either PARK or NEUTRAL in order to complete the ground to CKT 150 (BLK) and onto ground G105, releasing the Liftgate Window.