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Home >> Chevrolet >> 2015 >> Suburban LS, 4WD >> Repair and Diagnosis >> Steering >> Power Steering System >> Diagnostic Information and Procedures >> DTC C056D: Electronic Control Unit Hardware (Power Steering Control Module) >> Circuit/System Verification
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Circuit/System Verification

  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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