U0085 — Vehicle Communication Bus F - Open

What Does U0085 Mean?

U0085 is a diagnostic trouble code indicating: Vehicle Communication Bus F - Open. This code relates to the network communication system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

What To Do Next

1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

Related Codes

U0080 Vehicle Communication Bus F U0081 Vehicle Communication Bus F Performance U0082 Vehicle Communication Bus F + Open U0083 Vehicle Communication Bus F + Low U0084 Vehicle Communication Bus F + High U0086 Vehicle Communication Bus F - Low U0087 Vehicle Communication Bus F - High U0088 Vehicle Communication Bus F - Shorted to Bus F +