U1280
Communication Bus Line Error
U1280 is an OBD-II diagnostic trouble code meaning: Communication Bus Line Error. Common causes: broken or damaged communication bus wires, poor contact in connectors. Estimated repair cost: $6–56.
Symptoms
- Check Engine light comes on
- Malfunctions of various vehicle systems
- Lost communication with one or more modules
- Unstable engine operation
Causes
- Broken or damaged communication bus wires
- Poor contact in connectors
- Malfunction of one of the modules
- Short circuit in the communication bus circuit
How to Fix
- Check the integrity of the communication bus wires
- Check contacts in connectors
- Check the functionality of the modules connected to the bus
- Check for short circuit in the circuit
- Replace damaged wires or connectors
Related codes
FAQ
What does the U1280 code mean?
U1280 is an OBD-II diagnostic trouble code that indicates: Communication Bus Line Error
What causes a U1280 error code?
The most common causes of U1280 include: Broken or damaged communication bus wires; Poor contact in connectors; Malfunction of one of the modules; Short circuit in the communication bus circuit.
How do I fix a U1280 diagnostic trouble code?
To fix U1280: Check the integrity of the communication bus wires. Check contacts in connectors. Check the functionality of the modules connected to the bus. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U1280?
Yes, but get it checked soon
How much does it cost to fix U1280?
The estimated repair cost for U1280 is $6–56. Actual cost depends on your vehicle, location, and labor rates.
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