U0093 — Vehicle Communication Bus H Performance

What Does U0093 Mean?

U0093 is a diagnostic trouble code indicating: Vehicle Communication Bus H Performance. 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

U0088 Vehicle Communication Bus F - Shorted to Bus F + U0089 Vehicle Communication Bus G U0090 Vehicle Communication Bus G (-) High U0091 Vehicle Communication Bus G (-) shorted to Bus G (+) U0092 Vehicle Communication Bus H U0094 Vehicle Communication Bus H (+) Open U0095 Vehicle Communication Bus H (+) Low U0096 Vehicle Communication Bus H (+) High