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Home >> Chevrolet >> 2021 >> Traverse LS, FWD >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Vehicle Access System >> Diagnostic Information and Procedures >> DTC B1474 or B3849 >> Circuit/System Description
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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 12 V.
Ground Chassis Ground
Component Description
B27D Door Handle Switch - Driver Exterior The switch has a normally open contact. When the switch is activated, the signal circuit to the control module is grounded.
B27P Door Handle Switch - Passenger Exterior The switch has a normally open contact. When the switch is activated, the signal circuit to the control module is grounded.
K84 Keyless Entry Control Module The control module also reads various switches and sensors and makes their values available via serial data.
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