What does code C0012 mean?

Q: What does code C0012 mean?

Left Front Hydraulic Release Too Long. C0012 means the antilock braking system (ABS) control module commanded the left front hydraulic release valve to open, but the expected pressure drop did not occur within the allowed time window. The module monitors hydraulic pressure indirectly through wheel speed behavior and valve circuit feedback, and it sets this code when the left front brake cannot release quickly enough during an ABS event or self-test.

DTC codes / C00xx · Brakes, steering and suspension / C0012

C0012Left Front Hydraulic Release Too Long

C0012 means the antilock braking system (ABS) control module commanded the left front hydraulic release valve to open, but the expected pressure drop did not occur within the allowed time window. The module monitors hydraulic pressure indirectly through wheel speed behavior and valve circuit feedback, and it sets this code when the left front brake cannot release quickly enough during an ABS event or self-test.

SystemChassis

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

AreaBrakes, steering and suspension

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.