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Home >> GMC >> 2017 >> Canyon SL >> Repair and Diagnosis >> Steering >> Power Steering System >> Diagnostic Information and Procedures >> DTC C056E: Electronic Control Unit Hardware >> Circuit/System Verification

Circuit/System Verification

DTC C056E 41

  1. Ignition ON.
  2. Verify that DTC C056E 41 is not set.
    • If the DTC C056E 41 is set 
    1. Program the K43 Power Steering Control Module.
    2. Verify the DTC does not set.
      • If the DTC sets, replace the K43 Power Steering Control Module.
      • If the DTC does not set
    3. All OK.
    • If the DTC C056E 41 is not set 
  3. All OK.

DTC C056E 4B

  1. Ignition ON.
  2. Verify that DTC C056E 4B is not set.
    • If the DTC C056E 4B is set 
    1. Refer to Power Steering Control Module Programming and Setup and follow the steps to perform "Replace and Program Control Module."
    2. Verify the DTC does not set.
      • If the DTC sets, replace the K43 Power Steering Control Module.
      • If the DTC does not set
    3. All OK.
    • If the DTC C056E 4B is not set 
  3. All OK.