Circuit/System Description

For an overview of the component/system, refer to: Rear Hatch/Gate Description and Operation

Circuit	Description
B+ - Relay Switch	Supplied from a fuse.
Signal	The control module input circuit has an internal resistance connected to 12 V.
Control - Component	The output circuit is switched to 12 V to activate the component.
Control - Relay Coil	The output circuit is switched to ground to activate the component.
Ground - Component	Chassis Ground

Component	Description
S46 Liftgate Handle Switch	The switch has a normally open contact. When the switch is activated, the signal circuit to the control module is grounded.
A23C Liftgate Latch Assembly	The DC motor unlatches the liftgate. Once the liftgate is unlatched, a switch in the latch will close, grounding the signal circuit to the BCM.
KR95A Liftgate Unlatch Relay	A relay is a switch that is actuated by a solenoid.
K9 Body Control Module	The module controls various vehicle functions like lighting, central door locking, power windows, etc.