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Home >> Cadillac >> 2008 >> STS Base, 4.6 A, AWD >> Repair and Diagnosis >> Brakes >> Anti-Lock Brake System, Traction Control System & Stability Control System >> Diagnostic Information and Procedures >> DTC C0131 >> Circuit/System Testing
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Circuit/System Testing

  1. Apply and release brake pedal. Verify brake lamps operate properly.
    • If brake lamps do not operate properly, review brake lamps inoperative.
  2. Replace EBCM/brake pressure modulator valve (BPMV) assembly.