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Home >> Hummer >> 2009 >> H2 4D Utility Pickup >> Repair and Diagnosis >> Brakes >> Traction Control >> Antilock Brake System >> Diagnostic Information and Procedures >> DTC C0179 >> Circuit/System Testing
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Circuit/System Testing

  1. Most occurrences of this DTC are caused by excessive TCS activation or braking. Review with the customer to verify the conditions under which the DTC set.
    • If vehicle operation caused this DTC to set, clear the DTC.
  2. Test drive the vehicle under normal conditions
    • If the DTC resets under normal driving conditions, replace the EBCM/brake pressure modulator valve (BPMV).
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