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Home › GMC › 2021 › Acadia SL › Repair and Diagnosis › Body & Frame › Body, Cab Control Systems › Secondary And Configurable Customer Controls › Diagnostic Information and Procedures › Drive Mode Switch Malfunction › Circuit/System Verification

Circuit/System Verification

  1. Verify that no DTCs are set, except P159F, P15A0 or P15A1.
    • Go to next step: If only DTCs P159F, P15A0 or P15A1 are set 

      Go to next step: Refer to Circuit/System Testing.

    • Go to next step: If no DTCs are set 
  2. All OK.
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