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Home >> GMC >> 2021 >> Acadia SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 100 (Cruise Control System) >> Diagnostic Information and Procedures >> DTC P0571 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2019 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition - On/Vehicle - In Service Mode
  2. Verify there are no other DTCs set, except for DTC P0571.
    • Go to next step: If no other DTCs are set 
  3. Replace the component: K20 Engine Control Module
  4. Operate the vehicle within the Conditions for Running the DTC. - Verify the DTC does not set.
    • If DTC P0571 is set 

      Replace the component: K9 Body Control Module

    • Go to next step: If the DTC is not set 
  5. All OK.
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