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Home >> Cadillac >> 2016 >> ELR >> Repair and Diagnosis >> Brakes >> Traction Control >> Antilock Brake System >> Diagnostic Information and Procedures >> DTC C0242 or P0856: Engine Control Module Indicated Traction Control Malfunction, Traction Control Torque Request Circuit >> Circuit/System Verification
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Circuit/System Verification

  1. Vehicle in Service Mode.
  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 under the Conditions for Running the DTC. You may also operate the vehicle under the conditions that you observed from the Freeze Frame/Failure Records data.
    • If DTC C0242 or P0856 sets 

      Replace the K17 Electronic Brake Control Module.

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