Vehicle Communication Bus C

Check these first

• An open or short in the Bus C wiring
• Corroded or damaged Bus C connectors
• A failed control module dragging the Bus C down
• Incorrect termination resistance on the Bus C network

What to do next

1. Read the code and check for modules that are offline on a scan tool
2. Check the Bus C wiring for open and short faults
3. Measure bus resistance across the Bus C terminals
4. Inspect the Bus C connectors for corrosion
5. Isolate modules one at a time to find the one dragging the bus
6. Clear the code and retest

Look up another code