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Home >> Cadillac >> 2014 >> Escalade Base, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 6 (Transfer Case - Mp 3023/3024-NQH) >> Diagnostic Information and Procedures >> DTC C0379: Front Axle System >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2014 GMC Yukon XL 1500, 2014 GMC Yukon, 2014 Chevrolet Tahoe, and 2014 Chevrolet Suburban 1500. However, it is still accessible from the selected car via links, so may be relevant.
  1. Key ON, engine OFF. Parking brake applied. Transmission in Neutral. Install a scan tool.
  2. While monitoring the Front Axle Actuator parameter of the Data Display function on the scan tool, shift the vehicle into 4WD HI. The Front Axle Actuator parameter should display Engaged. You should also be able to hear the axle actuator engaging.
  3. Shift the vehicle into 2WD HI. The Front Axle Actuator parameter should display Disengaged. You should also be able to hear the axle actuator disengaging.
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