U0140
Lost Communication With Body Control Module
U0140 is an OBD-II diagnostic trouble code meaning: Lost Communication With Body Control Module. Common causes: open or short circuit in the communication circuit, body control module malfunction. Estimated repair cost: $56–167.
Symptoms
- Power windows not working
- Problems with central locking
- Lighting malfunctions
- Lack of communication with other modules
- Warning lights on the dashboard come on
Causes
- Open or short circuit in the communication circuit
- Body control module malfunction
- Module power problems
- Corrosion of contacts or connectors
- CAN bus malfunction
How to Fix
- Check the integrity of the wiring to the body control module
- Check power supply and grounding of the module
- Inspect the module connectors for corrosion
- Carry out CAN bus diagnostics
- Replace the body control module if necessary
Related codes
Error U0140 by Vehicle Brand
FAQ
What does the U0140 code mean?
U0140 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Body Control Module
What causes a U0140 error code?
The most common causes of U0140 include: Open or short circuit in the communication circuit; Body control module malfunction; Module power problems; Corrosion of contacts or connectors.
How do I fix a U0140 diagnostic trouble code?
To fix U0140: Check the integrity of the wiring to the body control module. Check power supply and grounding of the module. Inspect the module connectors for corrosion. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0140?
Yes, but get it checked soon
How much does it cost to fix U0140?
The estimated repair cost for U0140 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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