What does code U0231 mean?

Q: What does code U0231 mean?

Lost Communication With Rain Sensing Module. U0231 is a network communication code indicating that a primary control module, typically the body control module (BCM), has lost the controller area network (CAN) signal from the rain sensing module. The computer has detected that the rain sensor, which normally shares data over the bus, has stopped reporting, so the wiper system may default to manual operation.

DTC codes / U02xx · Lost communication with a control module / U0231

U0231Lost Communication With Rain Sensing Module

U0231 is a network communication code indicating that a primary control module, typically the body control module (BCM), has lost the controller area network (CAN) signal from the rain sensing module. The computer has detected that the rain sensor, which normally shares data over the bus, has stopped reporting, so the wiper system may default to manual operation.

SystemNetwork

Code typeGeneric (all makes)

SeverityLow

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.