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U0057: Vehicle Communication Bus D (+) Open

What Does U0057 Mean?

U0057 is a diagnostic trouble code indicating: Vehicle Communication Bus D (+) 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. 1
    Find your vehicle above

    Click your make and model for real owner reports and common causes specific to your vehicle.

  2. 2
    Check for recalls

    Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.

  3. 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

U0052 Vehicle Communication Bus C (-) Low U0053 Vehicle Communication Bus C (-) High U0054 Vehicle Communication Bus C (-) shorted to Bus C (+) U0055 Vehicle Communication Bus D U0056 Vehicle Communication Bus D Performance U0058 Vehicle Communication Bus D (+) Low U0059 Vehicle Communication Bus D (+) High U0060 Vehicle Communication Bus D (-) Open