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Home >> GMC >> 2016 >> Canyon SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 93 (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

WARNING: This page is about a different car, the 2017 GMC Canyon and 2017 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
  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