B1317 Battery Voltage High
What does B1317 mean on a Ford?
B1317 — Battery Voltage High. This Ford-enhanced code applies to Focus, Escape, F-150 — reported by ABS, cluster and restraint modules.
Common causes of B1317
- Overcharging alternator
- Recent jump-start or battery charging event
- Failed voltage regulator
- Poor battery cable connections confusing regulation
- Module sense fault
How to fix B1317
- Measure charging voltage — sustained readings above 15V confirm overcharge
- Check for recent jump-start or charging history
- Inspect battery cables and grounds
- Test the alternator regulator
- Clear the code after voltage returns to the 13–15V window