U0047
Vehicle Communication Bus C Performance
U0047 is an OBD-II diagnostic trouble code meaning: Vehicle Communication Bus C Performance. Common causes: damage to can bus wiring, malfunction of one of the electronic modules. Estimated repair cost: $6–56.
Symptoms
- Incorrect operation of electronic systems
- Check Engine light comes on
- Loss of communication between modules
- Dashboard malfunctions
Causes
- Damage to CAN bus wiring
- Malfunction of one of the electronic modules
- Short circuit in the circuit
- Interference on the CAN network
How to Fix
- Check the integrity of the CAN bus wiring
- Diagnose all connected modules
- Check connections and connectors
- Replace damaged wires or modules
Related codes
Error U0047 by Vehicle Brand
FAQ
What does the U0047 code mean?
U0047 is an OBD-II diagnostic trouble code that indicates: Vehicle Communication Bus C Performance
What causes a U0047 error code?
The most common causes of U0047 include: Damage to CAN bus wiring; Malfunction of one of the electronic modules; Short circuit in the circuit; Interference on the CAN network.
How do I fix a U0047 diagnostic trouble code?
To fix U0047: Check the integrity of the CAN bus wiring. Diagnose all connected modules. Check connections and connectors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0047?
Do not drive — repair immediately
How much does it cost to fix U0047?
The estimated repair cost for U0047 is $6–56. Actual cost depends on your vehicle, location, and labor rates.
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