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.