Honda B1178: F-CAN Communication Line Error
Is your scanner showing Honda B1178?
No worries. We'll show you what it means and how to deal with it.
Honda B1178: F-CAN Communication Line Error
OVERVIEWWhat Does The Honda B1178 Code Mean?
Poor communication on the (F-Can) Fast controller Area Network line.
What Are The Potential Causes Of The Honda B1178 Code?
- Check for Fuel and Emissions Systems DTCs first, then retest
- Loose or poor connection between the Gauge Control Module and the PCM
- “Open” or “Short” between Gauge Control Module and the PCM
- Update the PCM if it does not have the latest software
- Faulty Gauge Control Module
- Faulty PCM
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> Honda PCM
>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Body Electrical Repair Information for B1178 – American Honda Motor, page 265.
