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Home >> GMC >> 2018 >> Acadia SL >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Vehicle Access System >> Diagnostic Information And Procedures >> DTC B396C Or B396D: Liftgate Mode Switch Circuit/Front Liftgate Actuator Switch Circuit (Liftgate Interior Release Open/Close Switch Malfunction) >> Circuit/System Description

Circuit/System Description

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.
Ground Chassis Ground
Component Description
S45B Liftgate Control Switch - Interior Each function has its own switch. The switches are connected to a resistor ladder so that a specific resistance is generated for each switch.
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.
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