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Home › Chevrolet › 2014 › Trax LS, Automatic Trans › Repair and Diagnosis › External Pages › Different car › Section 146 (Antilock Brake System) › Diagnostic Information and Procedures › DTC C0242 or P0856: Engine Control Module/Traction Control Torque Request Signal Message Counter › Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2016 Chevrolet Trax and 2016 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify that no other DTCs are set except for C0242 or P0856.
    • If no other DTCs are set 
  3. Replace the K20 Engine Control Module.
  4. Verify that DTC C0242 or P0856 does not set while operating the vehicle within the Conditions for Running the DTC.
    • If DTC C0242 or P0856 is set 

      Replace the K17 Electronic Brake Control Module.

    • If DTC C0242 or P0856 is not set 
  5. All OK.
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