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Home >> Chevrolet >> 2022 >> Tahoe PPV, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Transfer Case - Mp 3015 (NP0)) >> Diagnostic Information and Procedures >> DTC C11AD or C15AA >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different variant/trim than selected.

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

Circuit Description
5 V Reference - Terminal 1 @ B139 Transfer Case Two/Four Wheel Drive Actuator Position Sensor Regulated voltage supplied by the control module.
Signal - Terminal 2 @ B139 Transfer Case Two/Four Wheel Drive Actuator Position Sensor The control module input circuit has an internal resistance connected to ground.
Low Reference - Terminal 3 @ B139 Transfer Case Two/Four Wheel Drive Actuator Position Sensor Grounded through the control module.
Component Description
B139 Transfer Case Two/Four Wheel Drive Actuator Position Sensor The sensor contains a hall effect sensor that varies its output voltage in response to a magnetic field. The hall effect sensor is used for the following sensing application: Transfer Case Range
K69 Transfer Case Control Module The control module contains a microprocessor used to process input data to control outputs.