U0005
High Speed CAN Communication Bus (+) High
U0005 is an OBD-II diagnostic trouble code meaning: High Speed CAN Communication Bus (+) High. Common causes: high speed can bus wire break (+), short circuit in can circuit. Estimated repair cost: $6–56.
Symptoms
- Check Engine Light Is On
- Malfunctions of various vehicle systems
- Lost connection with diagnostic equipment
- Unstable engine operation
- Transmission problems
Causes
- High speed CAN bus wire break (+)
- Short circuit in CAN circuit
- Damage to CAN bus connectors
- Malfunction of one of the control units
- Corrosion or oxidation of contacts
How to Fix
- Check the integrity of the CAN bus wires
- Check connections and connectors for damage
- Check resistance in CAN circuit
- Check the voltage on the CAN bus
- Replace damaged wires or connectors
Related codes
Error U0005 by Vehicle Brand
FAQ
What does the U0005 code mean?
U0005 is an OBD-II diagnostic trouble code that indicates: High Speed CAN Communication Bus (+) High
What causes a U0005 error code?
The most common causes of U0005 include: High speed CAN bus wire break (+); Short circuit in CAN circuit; Damage to CAN bus connectors; Malfunction of one of the control units.
How do I fix a U0005 diagnostic trouble code?
To fix U0005: Check the integrity of the CAN bus wires. Check connections and connectors for damage. Check resistance in CAN circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0005?
Do not drive — repair immediately
How much does it cost to fix U0005?
The estimated repair cost for U0005 is $6–56. Actual cost depends on your vehicle, location, and labor rates.
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