What does code U0266 mean?

Q: What does code U0266 mean?

Lost Communication With Image Processing Sensor B. U0266 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 image processing sensor designated as B. The computer detected that expected periodic messages from that sensor stopped arriving within the allowed time window, which sets the code and typically illuminates a warning light.

DTC codes / U02xx · Lost communication with a control module / U0266

U0266Lost Communication With Image Processing Sensor B

U0266 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 image processing sensor designated as B. The computer detected that expected periodic messages from that sensor stopped arriving within the allowed time window, which sets the code and typically illuminates a warning light.

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.