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Home >> Buick >> 2021 >> Envision Preferred, AWD >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Vehicle Access System >> Diagnostic Information and Procedures >> DTC B16C5 (TC2) >> Circuit/System Description

Circuit/System Description

The K9 Body Control Module provides the E7AC Rear License Plate Lamp Module with approximately 7.5 V to the signal circuit 5797. When the switch is pressed, the K9 Body Control Module will detect the voltage drop in the signal circuit 5797 and will send a serial data message to the K194 Rear Gate Module to command the A23C Liftgate Latch to activate