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Home >> Buick >> 2017 >> Encore Base >> Repair and Diagnosis >> Brakes >> Traction Control >> Antilock Brake System >> Diagnostic Information and Procedures >> DTC C0131: Traction Control System >> Circuit/System Verification
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Circuit/System Verification

  1. Ignition ON.
  2. Verify the stop lamps turn ON and OFF while applying and releasing the brake pedal.
    • If the stop lamps turn ON and OFF 
  3. Verify the Brake Pedal Position Sensor or the brake pedal are not binding causing residual brake pressure to be detected, while the brake lights operate properly.
    • If a condition is found 

      Repair or replace the appropriate component.

    • If a condition is not found 
  4. Verify the scan tool Brake Pressure Sensor parameter changes from 0 V to 1 V when the brake pedal is applied.
    • If the Brake Pressure Sensor parameter does not change 
    1. Replace the Q5 Brake Pressure Modulator.
    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 the Brake Pressure Sensor parameter changes 
  5. All OK.
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