A failing or intermittently failing image processing module A; Corroded, loose, or damaged pins in the image processing module's electrical connector; A chafed or open circuit in the controller area network (CAN) bus wiring between the image processing module and the receiving module; Low battery voltage or a weak charging system causing the image processing module to drop offline momentarily; A software or calibration error in the image processing module after a battery replacement or windshield service; A faulty receiving module that incorrectly flags valid data as invalid; Aftermarket accessories wired into the camera or network circuit causing signal interference

DTC codes / U05xx · Network communication / U053B

U053BInvalid Data Received From Image Processing Module A

Q: What does code U053B mean?

Invalid Data Received From Image Processing Module A. U053B is a communication fault where a control module on the vehicle's network receives data from the image processing module A that it considers invalid or corrupted. The image processing module handles camera-based driver assistance functions, and the receiving module has detected that the data frames are missing, out of range, or failing checksum validation.

U053B is a communication fault where a control module on the vehicle's network receives data from the image processing module A that it considers invalid or corrupted. The image processing module handles camera-based driver assistance functions, and the receiving module has detected that the data frames are missing, out of range, or failing checksum validation.

SystemNetwork

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

AreaNetwork communication

Symptoms you may notice

A warning light for a driver assistance system such as lane keeping or forward collision alert
A message on the dash stating that camera or image processing features are unavailable
Adaptive cruise control or automatic emergency braking may be disabled
The infotainment screen may show a camera feed that is blank, frozen, or distorted
Often no symptoms besides the warning light if the fault is intermittent
Multiple unrelated warning lights may appear if the network bus is disturbed

Common causes, most likely first

A failing or intermittently failing image processing module A
Corroded, loose, or damaged pins in the image processing module's electrical connector
A chafed or open circuit in the controller area network (CAN) bus wiring between the image processing module and the receiving module
Low battery voltage or a weak charging system causing the image processing module to drop offline momentarily
A software or calibration error in the image processing module after a battery replacement or windshield service
A faulty receiving module that incorrectly flags valid data as invalid
Aftermarket accessories wired into the camera or network circuit causing signal interference

How to diagnose and fix it

Use a scan tool to read all stored codes and record the exact fault status and freeze-frame data before clearing anything
Inspect the image processing module connector for corrosion, pushed pins, or water intrusion and clean or repair as needed
Check battery voltage and charging system output to rule out low-voltage dropouts
Perform a wiggle test on the CAN bus wiring at the image processing module while watching live data for dropouts
Verify the image processing module has the latest software and perform any required calibration after windshield or camera work
If wiring and power are good, substitute a known-good image processing module A and recheck for the code
Clear codes and perform a road test to confirm the fault does not return before releasing the vehicle

Before you replace the image processing module

A weak battery or a loose ground connection is a common cause of this code because the image processing module can reboot mid-frame and send invalid data that the receiving module flags.
Windshield replacement or camera bracket work often sets U053B if the camera is not recalibrated, so check service history before condemning the module.
The code can be stored by a module other than the one you are scanning, so always check every module on the network for related communication codes.
Aftermarket dashcams or phone mounts wired near the camera can introduce electrical noise that corrupts the data stream and triggers this code.
U053B does not always mean the image processing module is dead; a poor connection at the receiving module's connector can cause it to misread valid data.

Can I keep driving with U053B?

You can usually drive the vehicle, but advanced driver assistance features such as automatic emergency braking and lane keeping may be disabled, so do not rely on them. Avoid long trips until the fault is diagnosed, and have the system checked promptly if the warning light is accompanied by other electrical symptoms.

Tools that help

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