U0057
Vehicle Communication Bus D (+) Open
U0057 is an OBD-II diagnostic trouble code meaning: Vehicle Communication Bus D (+) Open. Common causes: broken wire in the can d+ bus, poor contact in the connector. Estimated repair cost: $6–33.
Symptoms
- Check Engine light comes on
- Malfunction of various vehicle systems
- Problems starting the engine
- Unstable operation of the dashboard
- Errors in other modules
Causes
- Broken wire in the CAN D+ bus
- Poor contact in the connector
- Short circuit in the circuit
- Malfunction of one of the network modules
- Wiring harness damage
How to Fix
- Check the integrity of the CAN D bus wiring
- Inspect connectors for oxidation or damage
- Check resistance and continuity
- Scan all modules for errors
- Replace damaged wires or connectors
Related codes
Error U0057 by Vehicle Brand
FAQ
What does the U0057 code mean?
U0057 is an OBD-II diagnostic trouble code that indicates: Vehicle Communication Bus D (+) Open
What causes a U0057 error code?
The most common causes of U0057 include: Broken wire in the CAN D+ bus; Poor contact in the connector; Short circuit in the circuit; Malfunction of one of the network modules.
How do I fix a U0057 diagnostic trouble code?
To fix U0057: Check the integrity of the CAN D bus wiring. Inspect connectors for oxidation or damage. Check resistance and continuity. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0057?
Yes, but get it checked soon
How much does it cost to fix U0057?
The estimated repair cost for U0057 is $6–33. Actual cost depends on your vehicle, location, and labor rates.
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