What does code U0223 mean?

Q: What does code U0223 mean?

Lost Communication With 'Door Window Motor B'. U0223 is a generic network communication code indicating that a control module on the vehicle's Controller Area Network (CAN) bus has lost contact with the door window motor on the 'B' circuit, which is typically the passenger-side window motor. The module that sets this code has detected that expected periodic messages from that window motor have stopped arriving within a defined time window, so it flags the circuit as offline.

DTC codes / U02xx · Lost communication with a control module / U0223

U0223Lost Communication With 'Door Window Motor B'

U0223 is a generic network communication code indicating that a control module on the vehicle's Controller Area Network (CAN) bus has lost contact with the door window motor on the 'B' circuit, which is typically the passenger-side window motor. The module that sets this code has detected that expected periodic messages from that window motor have stopped arriving within a defined time window, so it flags the circuit as offline.

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.