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Home >> Cadillac >> 2021 >> XT5 Sport >> Repair and Diagnosis >> External Pages >> Different car >> Section 823 (Transfer Case - Mp 3023/3024 (NQH) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC C118D, C119B, or C119C >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2023 GMC Sierra 3500 HD and 2023 GMC Sierra 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

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

Circuit Description
Ignition - Terminal 1@M26 Front Axle Engagement Actuator Supplied from a fuse.
Control - Terminal 2@M26 Front Axle Engagement Actuator The output circuit is switched to ground to activate the component.
Signal - Terminal 3@M26 Front Axle Engagement Actuator The output circuit varies between ground and 12 V.
Ground - Terminal 4@M26 Front Axle Engagement Actuator Chassis Ground
Component Description
K69 Transfer Case Control Module The control module contains a microprocessor used to process input data to control outputs.
M26 Front Axle Engagement Actuator Front Drive Axle Actuator
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