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Home >> GMC >> 2019 >> Sierra 2500 HD Base, 2D Pickup, Gas >> Repair and Diagnosis >> External Pages >> Different car >> Section 2880 (Power Steering System) >> Diagnostic Information and Procedures >> DTC C056D: Electronic Control Unit Hardware (Power Steering Control Module) >> Circuit/System Verification

Circuit/System Verification

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  1. Ignition ON.
  2. Verify DTC C056D is not set.
    • If DTC C056D is set 
      NOTE:

      Check power and ground on the engine wiring harness for faulty connections or corrosion before replacing the K43 Power Steering Control Module.

      Replace the K43 Power Steering Control Module.

    • If DTC C056D is not set 
  3. All OK
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