What does code U0571 mean?

Q: What does code U0571 mean?

Invalid Data Received From Image Processing Sensor L. U0571 is a communication fault indicating that a control module received invalid or corrupted data from the image processing sensor labeled 'L', which is typically a camera or vision processor used for driver assistance features. The computer detected that the data stream from this sensor failed its integrity or plausibility checks, so it flagged the message as unusable rather than acting on faulty information.

DTC codes / U05xx · Network communication / U0571

U0571Invalid Data Received From Image Processing Sensor L

U0571 is a communication fault indicating that a control module received invalid or corrupted data from the image processing sensor labeled 'L', which is typically a camera or vision processor used for driver assistance features. The computer detected that the data stream from this sensor failed its integrity or plausibility checks, so it flagged the message as unusable rather than acting on faulty information.

SystemNetwork

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaNetwork communication

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.