U0571 code meaning
Invalid Data Received From Image Processing Sensor L
What U0571 means
U0571 closes the image-processing-sensor block; the next number, U0572, already belongs to a vehicle motion control module. An image processing sensor computes objects inside the camera itself, for instance with a system-on-chip as in Bosch's multi purpose camera or with Mobileye's EyeQ processors, the first generation of which launched in 2008. That differs from an image processing module (U053B–U053D), a separate controller that evaluates camera streams. U0571 means sensor L's results arrived but failed the receiver's checks. No manufacturer documents U0571 or partner U0270, and the position of L is unknown. Expect the dependent assistant to switch off; no MIL.
U0571 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyHard
- Typical labor0.5 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of U0571
- Assistance function using sensor L unavailable
- Code stored without warning lamp
Common causes of U0571
- PossibleProcessing software in sensor L faulty or not matching the receiver
- PossibleWiring or connector fault corrupting the sensor's messages
- Less likelyImage processing sensor L internally faulty
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Image processing sensor l
What each part of U0571 means
| U | Network system: communication between the control modules (CAN bus). |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 71 | The exact fault in that area. |
What to do next
- Note U0571 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about U0571
What does U0571 mean?
U0571 means "Invalid Data Received From Image Processing Sensor L". U0571 closes the image-processing-sensor block; the next number, U0572, already belongs to a vehicle motion control module. It is a generic code, so it means the same on every make.
Is it safe to drive with U0571?
U0571 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will U0571 fail an emissions test?
U0571 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is U0571 to fix?
Difficulty: hard. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will U0571 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.