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Home >> Cadillac >> 2007 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 944 (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

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Apply and release brake pedal. Verify brake lamps operate properly. If brake lamps do not operate properly, refer to Symptoms - Lighting .
  2. Test the stop lamp supply voltage circuit for a short to voltage, short to ground, an open or high resistance.
    • If the stop lamp circuit tests normal, replace the EBCM/BPMV assembly.
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