Lost Communication with Door Control Module
Communication with a door control module has been lost.
Informational only. Consult a qualified mechanic.
- Faulty door module
- Broken wiring in door jamb
- Water intrusion
Inspect door jamb wiring for damage. Replace door module if needed.
What does U0199 mean?
The U0199 OBD-II diagnostic trouble code (DTC) indicates: lost communication with door control module. This is a low-severity network code that your vehicle's onboard diagnostics system triggers when communication with a door control module has been lost. If your check engine light is on with this code, the vehicle is generally safe to drive, but you should have it inspected soon.
Use Your Service Book to log this diagnostic trouble code to your vehicle's service history, track repairs, and get maintenance reminders — all for free.
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