Conditions for Setting the DTC

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.

C0131 00

The brake pressure sensor signal is out of the specified range.
The brake pressure sensor signal offset is out of the specified range.

C0131 4B

The brake pressure sensor is not calibrated.

C0131 5A

The brake pressure sensor signal is not plausible.
The electronic brake control module detected an invalid or erratic brake pressure sensor signal.