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 MANUALSBUICK2013REGAL TURBO PREMIUM, STANDARD TRANSREPAIR AND DIAGNOSISBRAKESTRACTION CONTROLANTILOCK BRAKE SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESDTC C0161CIRCUIT/SYSTEM VERIFICATION
2013 Buick Regal Turbo Premium, Standard Trans
Circuit/System Verification
2013 Buick Regal Turbo Premium, Standard TransSECTION Circuit/System Verification
- Ignition ON.
- Verify that DTC C0277 or C0890 is not set.
- If either DTC is set
Refer to DTC C0277 or C0890 .
- If the DTC is not set
- If either DTC is set
- Verify the B22 Brake Pedal Position Sensor or the brake pedal are not binding causing residual brake pressure to be detected.
- If a condition is found
Repair or replace the appropriate component.
- If a condition is not found
- If a condition is found
- Verify the scan tool Electronic Brake Control Module Brake Pedal Position Sensor parameter changes between Inactive and Active while applying and releasing the brake pedal.
- If the parameter does not change
Refer to Symptoms - Lighting .
- If the parameter changes
- If the parameter does not change
- All OK, refer to Diagnostic Aids.
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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.