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Home >> Cadillac >> 2017 >> ATS Base, 2D Coupe, RWD, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 226 (Power Steering System) >> Diagnostic Information and Procedures >> DTC C056D: Electronic Control Unit Malfunction (Power Steering Control Module) >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2016 Cadillac CT6. 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 
    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 DTC C056D is not set 
  3. All OK
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