What does code U0135 mean?

Q: What does code U0135 mean?

Lost Communication with Parking Brake Control Module. U0135 indicates that the primary control module (typically the engine control module or body control module) has lost communication with the parking brake control module over the vehicle's controller area network (CAN) bus. The computer has detected a missing or intermittent response from the parking brake module, meaning it cannot send or receive commands such as apply or release requests.

DTC codes / U01xx · Lost communication with a control module / U0135

U0135Lost Communication with Parking Brake Control Module

U0135 indicates that the primary control module (typically the engine control module or body control module) has lost communication with the parking brake control module over the vehicle's controller area network (CAN) bus. The computer has detected a missing or intermittent response from the parking brake module, meaning it cannot send or receive commands such as apply or release requests.

SystemNetwork

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaLost communication with a control module

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