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Home >> GMC >> 2019 >> Terrain SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 41 (Power Door Lock System And Release Systems) >> Diagnostic Information And Procedures >> DTC B396E: Rear Liftgate Actuator Switch Circuit >> Circuit/System Description
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Circuit/System Description

WARNING: This page is about a different car, the 2018 GMC Terrain and 2018 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.

For an overview of the component/system, refer to: Liftgate Description and Operation 

Circuit Description
Signal The control module input circuit has an internal resistance connected to 12 V.
Low Reference Grounded through the control module.
Component Description
B70 Liftgate Close Switch When the switch is activated, the signal circuit to the control module is grounded.
K39 Liftgate Control Module The control module K39 controls the liftgate motor function depending on inputs from a variety of sensors, switches and serial data information from other control modules.