What does code U0226 mean?

Q: What does code U0226 mean?

Lost Communication With 'Door Window Motor E'. U0226 is a generic network communication code indicating that a control module on the vehicle's data bus has lost contact with the door window motor designated as 'E'. The computer detected that expected periodic messages from that specific window motor stopped arriving within the allotted time window, which usually points to a wiring fault, a failed motor module, or a power/ground issue rather than a mechanical window problem.

DTC codes / U02xx · Lost communication with a control module / U0226

U0226Lost Communication With 'Door Window Motor E'

U0226 is a generic network communication code indicating that a control module on the vehicle's data bus has lost contact with the door window motor designated as 'E'. The computer detected that expected periodic messages from that specific window motor stopped arriving within the allotted time window, which usually points to a wiring fault, a failed motor module, or a power/ground issue rather than a mechanical window problem.

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.