What does code U0230 mean?

Q: What does code U0230 mean?

Lost Communication With Rear Gate Module. U0230 is a network communication code indicating that the body control module (BCM) or another gateway module has lost the controller area network (CAN) signal from the rear gate module, which controls the liftgate, tailgate, or trunk latch and related functions. The computer detected that expected periodic messages from the rear gate module stopped arriving over the communication bus, often setting the code after multiple consecutive missed messages.

DTC codes / U02xx · Lost communication with a control module / U0230

U0230Lost Communication With Rear Gate Module

U0230 is a network communication code indicating that the body control module (BCM) or another gateway module has lost the controller area network (CAN) signal from the rear gate module, which controls the liftgate, tailgate, or trunk latch and related functions. The computer detected that expected periodic messages from the rear gate module stopped arriving over the communication bus, often setting the code after multiple consecutive missed messages.

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.