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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 208 (Power Steering System) >> Diagnostic Information and Procedures >> DTC C055C: Steering Gear Performance Malfunction >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify that DTC C055C is not set.
    • If the DTC is set 
    1. Verify that no steering components down stream of the power steering column assembly are mechanically binding. Refer to Steering Effort Hard or Too Easy in One or Both Directions 
      • If steering components are mechanically binding, replace the mechanically binding steering components.
      • If no steering components are mechanically binding, replace the steering gear.
    • If the DTC is not set 
  3. All OK.
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