What it means
A receiving module detected implausible data from image processing module B. Object detections, lane lines or sign recognitions fail plausibility checks against other ADAS sensors and are rejected.
At a glance
- Usually lights the warning light of the system that lost communication
How it works
Image processing module B interprets camera imagery for driver-assistance features such as lane markings, objects, or road signs. Other modules check the data they receive from module B for plausibility against related sensor inputs; this code sets when that data fails those checks and is rejected.
Common causes
Most likely first.
- Module internal fault or sensor input drift
- Software version mismatch after replacement
- Gateway module routing CAN messages incorrectly
Symptoms
- Multiple warning lights may illuminate
- Affected modules may go into limp mode or shut down
- Specific functions inoperative depending on module
- Diagnostic tools may show communication faults
How to diagnose it
- Scan all modules and save freeze-frame and communication details to identify which recipient logged U053C and what image-processing data was considered implausible.
- Check live data for image processing module B and compare its object, lane, or sign outputs with what the vehicle's cameras and other ADAS sensors report.
- Inspect module B's camera or sensor inputs, connectors, and wiring for contamination, misalignment, damage, loose pins, or corrosion.
- Check the vehicle's service history for a recent module, camera, or software replacement that could leave module B incorrectly configured or on an incompatible version.
- Have a scan tool capable of network diagnostics check CAN communication and gateway routing for messages from module B, then follow manufacturer procedures to isolate a module or network fault.
Common fixes
- Clean and correctly align the camera or sensor inputs serving image processing module B.
- Repair damaged, loose, or corroded connectors and wiring to module B.
- Correct module B software or configuration to match the vehicle after a replacement or update.
- Repair or replace module B if its data remains implausible with valid inputs and network communication.
- Correct a gateway configuration or routing fault if network testing identifies it.
Can I keep driving?
Basic driving may remain possible, but lane, sign, or object recognition features that depend on module B may be unavailable or unreliable. Do not rely on those driver-assistance functions; arrange diagnosis promptly, especially if related warnings appear.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.