What does code U0237 mean?

Q: What does code U0237 mean?

Lost Communication with Sunroof Assembly Control Module. U0237 is a network communication code indicating that a primary control module, typically the body control module (BCM) or gateway module, has lost the controller area network (CAN) signal from the sunroof assembly control module. The computer detected that the sunroof module stopped broadcasting its periodic status messages or failed to respond to a request over the communication bus.

DTC codes / U02xx · Lost communication with a control module / U0237

U0237Lost Communication with Sunroof Assembly Control Module

U0237 is a network communication code indicating that a primary control module, typically the body control module (BCM) or gateway module, has lost the controller area network (CAN) signal from the sunroof assembly control module. The computer detected that the sunroof module stopped broadcasting its periodic status messages or failed to respond to a request over the communication bus.

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.