What does code C0018 mean?

Q: What does code C0018 mean?

Left Rear Inlet Control. C0018 indicates that the antilock braking system (ABS) control module has detected an electrical fault in the left rear inlet control valve circuit. This valve regulates hydraulic pressure to the left rear brake during ABS operation, and the module monitors the circuit for open, short, or excessive resistance conditions.

DTC codes / C00xx · Brakes, steering and suspension / C0018

C0018Left Rear Inlet Control

C0018 indicates that the antilock braking system (ABS) control module has detected an electrical fault in the left rear inlet control valve circuit. This valve regulates hydraulic pressure to the left rear brake during ABS operation, and the module monitors the circuit for open, short, or excessive resistance conditions.

SystemChassis

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

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.