U0140
Lost Communication With Body Control Module
Network · Generic (all makes)System: Network/Communication + Electrical/Circuits
Safe to drive short term. Book a repair.
Likely causes
- Body control module not responding
- Water damage or corrosion
- Wiring fault
What to check first
Lights, locks and gauges may act up. Check BCM power, ground and connectors for water intrusion.
Typical repair cost
$100 – $900
Independent-shop parts and labor for the usual fix. Your price depends on the actual cause and the vehicle.
Next step
General information, not a diagnosis of your vehicle. Repair costs are typical shop ranges, not quotes.