U042200: Invalid Data Received From Body Control Module (Unauthorized)
Diagnostic trouble code U042200 — what it means, the common
causes, and how to confirm the real fault before replacing parts.
What does U042200 mean?
U042200 indicates: Invalid Data Received From Body Control Module (Unauthorized).
This relates to the Network / communication system.
Common causes of U042200
Control module disconnected from CAN bus at least twice (bus OFF condition)
Message timeout triggered by at least 10 consecutive missed messages
Fatal errors detected in the affected control module
Internal error counter threshold exceeded (equivalent to max 32 repeated messages)
What to check (live data)
CAN bus message cycle times (check for delays indicating missed messages)
Internal error counter status (bus OFF events)
Get the confirmed root cause for U042200 — on YOUR vehicle
A code is a symptom, not a diagnosis. AutoDX Pro cross-checks several
independent assessments, pinpoints the actual root cause, gives you the
exact tests to confirm it, and shows the parts — only after the cause is
confirmed. Reads your scan-tool photo and decodes your VIN with open
recalls.
U042200 is a diagnostic trouble code: Invalid Data Received From Body Control Module (Unauthorized).
What are the common causes of U042200?
Common causes include: Control module disconnected from CAN bus at least twice (bus OFF condition), Message timeout triggered by at least 10 consecutive missed messages, Fatal errors detected in the affected control module, Internal error counter threshold exceeded (equivalent to max 32 repeated messages). The exact cause depends on the vehicle — confirm it before replacing parts.
Can I keep driving with U042200?
It depends on the fault and your symptoms. Some causes are minor, others can damage components or affect safety. Get the root cause confirmed before deciding.
How do I fix U042200?
Confirm the actual root cause with targeted tests first, then replace only the part that's at fault. AutoDX Pro gives you the root cause, the exact tests, and the parts for U042200 on your specific vehicle.