Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSPONTIAC2006G6 GTP, 2D COUPE, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1418 (ANTILOCK BRAKE SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC C0131CIRCUIT/SYSTEM VERIFICATION
2006 Pontiac G6 GTP, 2D Coupe, Standard
Circuit/System Verification
2006 Pontiac G6 GTP, 2D Coupe, StandardSECTION Circuit/System Verification
WARNING: This page is about a different car, the 2012 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
- Verify DTC U0140, C0161, C0277 or C0278 is not set.
- If DTC is set, refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- Verify the brake pedal position sensor or the brake pedal is not binding causing residual brake pressure to be detected, while the brake lights operate properly.
- If a condition is found, repair or replace the applicable component.
- Apply and release the brake pedal. Verify the brake lights operate properly.
- If the brake lights do not operate properly, refer to Symptoms - Lighting .
- Ignition ON, observe the scan tool EBCM, VSES Data, BPP Signal parameter. The parameter should be Released when the brake pedal is not applied, and change to Applied when the brake pedal is applied.
- If not within the specified value, perform the scan tool BCM, BPP Sensor Calibration procedure. Refer to Brake Pedal Position Sensor Calibration . If the DTC resets, replace the brake pedal position sensor.
- Engine running, brake pedal not applied; verify the scan tool EBCM, VSES Data, Brake Pressure Sensor Input voltage is between 0.45-0.55 V.
- If not within the specified range, replace the brake pressure modulator valve assembly and verify the DTC does not reset. If the DTC resets, replace the EBCM.
- Engine running, brake pedal applied; verify the scan tool EBCM, VSES Data, Brake Pressure Sensor Input voltage is between 0.45-4.50 V.
- If not within the specified range, replace the brake pressure modulator valve assembly and verify the DTC does not reset. If the DTC resets, replace the EBCM.
- Operate the vehicle within the Conditions for Running and Setting the DTC and verify the DTC does not reset.
- If the DTC is set replace the brake pressure modulator valve assembly and verify the DTC does not reset. If the DTC resets, replace the EBCM.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.