What does code U0270 mean?

Q: What does code U0270 mean?

Lost Communication With Image Processing Sensor L. U0270 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 L, which is typically a camera or vision processor used for driver-assist features. The module that sets this code has detected a missing or intermittent CAN message from that sensor for a calibrated period, so the fault lies in the communication path or the sensor's power and ground rather than in the image-processing logic itself.

DTC codes / U02xx · Lost communication with a control module / U0270

U0270Lost Communication With Image Processing Sensor L

U0270 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 L, which is typically a camera or vision processor used for driver-assist features. The module that sets this code has detected a missing or intermittent CAN message from that sensor for a calibrated period, so the fault lies in the communication path or the sensor's power and ground rather than in the image-processing logic itself.

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.