Lost Communication With Body Control Module on BMW
BMW
Verified1 source
1 source
- Official data (NHTSA)official_feed
What U0140 means
Caution — monitor closely
The vehicle network has lost communication with the body control module.
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General information, not a diagnosis or repair instruction. Always confirm with a qualified mechanic for your specific vehicle.
Common causes
- Lost Communication With Body Control Module
What to check first
- Check wiring to the body control module
- Verify battery and grounds
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