U0080
Vehicle Communication Bus F
U0080 is an OBD-II diagnostic trouble code meaning: Vehicle Communication Bus F. Common causes: open or short circuit in the can bus wiring, fault in one of the modules connected to the bus. Estimated repair cost: $6–56.
Symptoms
- Check Engine Light Is On
- Some car systems do not work (climate control, cruise control, etc.)
- Problems starting the engine
- Dashboard malfunctions
- Lost connection with diagnostic equipment
Causes
- Open or short circuit in the CAN bus wiring
- Fault in one of the modules connected to the bus
- Damage to connectors or corrosion of contacts
- Problems with module power supply
- Software failure in one of the control units
How to Fix
- Check the integrity of the CAN bus wiring
- Inspect connectors and contacts for damage and corrosion
- Check the power supply of all modules connected to the bus
- Disable the modules one by one to identify the faulty one.
- Reset the error and check if it returns
Related codes
Error U0080 by Vehicle Brand
FAQ
What does the U0080 code mean?
U0080 is an OBD-II diagnostic trouble code that indicates: Vehicle Communication Bus F
What causes a U0080 error code?
The most common causes of U0080 include: Open or short circuit in the CAN bus wiring; Fault in one of the modules connected to the bus; Damage to connectors or corrosion of contacts; Problems with module power supply.
How do I fix a U0080 diagnostic trouble code?
To fix U0080: Check the integrity of the CAN bus wiring. Inspect connectors and contacts for damage and corrosion. Check the power supply of all modules connected to the bus. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0080?
Limited driving only, diagnose soon
How much does it cost to fix U0080?
The estimated repair cost for U0080 is $6–56. Actual cost depends on your vehicle, location, and labor rates.
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