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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 338 (Antilock Brake System) >> Diagnostic Information and Procedures >> DTC C018A, C019A, or C027F: Lateral Acceleration Sensor 2 Signal/Yaw Rate 2 Signal/Longitudinal Acceleration Signals 1-2 Not Plausible >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify DTC B101D is not set current or history in the K36 Inflatable Restraint Sensing and Diagnostic Module.
    • If DTC B101D is set current or history in the K36 Inflatable Restraint and Sensing Diagnostic Module 

      Replace the K36 Inflatable Restraint Sensing and Diagnostic Module.

    • If DTC B101D is not set current or history in the K36 Inflatable Restraint and Sensing Diagnostic Module 
  2. Verify DTC C0186, C0196, or C0287 is not set in the K36 Inflatable Restraint Sensing and Diagnostic Module.
    • If none of the DTCs are set 
  3. Verify DTC C0187, C0196, or C0287 is not set in the K17 Electronic Brake Control Module.
    • If any of the DTCs are set 
    1. Replace the K36 Inflatable Restraint Sensing and Diagnostic Module.
    2. Verify the DTC does not set while operating the vehicle within the Conditions for Running the DTC.
      • If the DTC sets, replace the K17 Electronic Brake Control Module.
      • If the DTC does not set
    3. All OK.
    • If none of the DTCs are set 
  4. All OK.
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