What does code U015B mean?

Q: What does code U015B mean?

Lost Communication With Power Steering Control Module B. U015B indicates that the primary control module responsible for coordinating communication on the vehicle's controller area network (CAN) has lost contact with the Power Steering Control Module B, which is the electronic module that manages the electric power steering assist. The computer detected a lack of expected CAN messages from that module over a defined time period, triggering the communication fault.

DTC codes / U01xx · Lost communication with a control module / U015B

U015BLost Communication With Power Steering Control Module B

U015B indicates that the primary control module responsible for coordinating communication on the vehicle's controller area network (CAN) has lost contact with the Power Steering Control Module B, which is the electronic module that manages the electric power steering assist. The computer detected a lack of expected CAN messages from that module over a defined time period, triggering the communication fault.

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.