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Home >> Chevrolet >> 2022 >> Tahoe PPV, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Transfer Case - Mp 3025 (NQH)) >> Diagnostic Information and Procedures >> DTC C05DD >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Ignition - On/Vehicle - In Service Mode
  2. Verify there are no other DTCs set, except for DTC C05DD.
    • If any other DTCs are set 

      Diagnose other DTCs first.

    • Go to next step: If no other DTCs are set 
  3. Operate the vehicle within the Conditions for Running the DTC.

    Verify the following parameters are within 1.6 km/h (1 MPH) of each other:

    • Electronic Brake Control Module - Left Front Wheel Speed Signal
    • Electronic Brake Control Module - Right Front Wheel Speed Signal
    • Electronic Brake Control Module - Left Rear Wheel Speed Signal
    • Electronic Brake Control Module - Right Rear Wheel Speed Signal
    • Go to next step: If within 1.6 km/h (1 MPH) of each other 
  4. Perform the scan tool learn/reset function: Range Actuator Correlation Learn

    Refer to: Transfer Case Range Actuator Correlation Learn 

  5. Verify DTC C05DD is not set.
    • Go to next step: If the DTC is not set 
  6. Operate the vehicle within the Conditions for Running the DTC.
  7. Verify DTC C05DD is not set.
    • Go to next step: If the DTC is not set 
  8. All OK.