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 MANUALSCHEVROLET2008HHR LT, 2.4 P, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 264 (ANTILOCK BRAKE SYSTEM WITH TRACTION CONTROL SYSTEM & STABILITY CONTROL SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC C0131DIAGNOSTIC AIDS
2008 Chevrolet HHR LT, 2.4 P, Automatic
Diagnostic Aids
2008 Chevrolet HHR LT, 2.4 P, AutomaticSECTION Diagnostic Aids
WARNING: This page is about a different car, the 2010 Pontiac G5 and 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
- C0131 5A may be set due to a BPPS offset ratio greater than allowed by the EBCM calibrations causing a delay brake applied/released signal from the BCM during EBCM monitoring. If there is a need to relearn the BPPS, then there may be other issues related to the BPPS and circuits.
- The EBCM calibrations for the brake pressure sensors adjusts for minor offset differences between the sensor inputs and can be reset with the scan tool special functions steering angle sensor (SAS) calibration. Under normal vehicle conditions the BPS should not need calibrating unless a BPMV is replaced.
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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.