U023B
Lost Communication With Image Processing Module B
What it means
U023B means Lost Communication With Image Processing Module B.
Where it lives
For U023B, the part to look at first is the module named here.
Check these first
- A failed image processing module B
- Corrosion or damage at the module B connector
- A short or open in the module B harness
- A software or protocol fault in module B
- A failed camera or sensor in the system
What to do next
- Inspect the module B connector for corrosion or damage
- Test the module B harness for shorts and opens
- Check power and ground at module B
- Test the camera or sensor tied to module B
- Update the module B software if a fault is stored
- Clear the code and retest
Look up another code
Enter a full code or a symptom. Press / to search. How to read a code
Type a code above, or start from a symptom or a common code.
Updated
Generic SAE J2012 definition. Last updated 2026-10-10.