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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 B17F7 >> Circuit/System Description

Circuit/System Description

For an overview of the component/system, refer to Power Door Locks Description and Operation 

Circuit Description
Signal The control module input circuit has an internal resistance connected to 7.5 V.
Ground Chassis Ground
Component Description
A23RR Rear Side Door Latch-Right The switch has a normally open contact. When the switch is activated, the signal circuit to the control module is grounded.
K9 Body Control Module The control module also reads various switches and sensors and makes their values available via serial data.