B1317
Battery Voltage High
B1317 is an OBD-II diagnostic trouble code meaning: Battery Voltage High. Common causes: generator voltage regulator malfunction, problems with the generator (brush wear, winding short circuit). Estimated repair cost: $56–167.
Symptoms
- Flickering or burning out lamps
- Metric(grid:)Rough engine idling
- Electrical failure
- Battery charge warning light comes on
Causes
- Generator voltage regulator malfunction
- Problems with the generator (brush wear, winding short circuit)
- Short circuit in the on-board network
- Excess of charging current due to faulty battery
- Open or poor contact in the charging circuit
How to Fix
- Check the voltage at the battery terminals with the engine running (normal: 13.8-14.8 V)
- Check the condition of the generator and voltage regulator
- Inspect the wiring harness and contacts in the charging circuit
- If necessary, replace the voltage regulator or generator assembly
Related codes
FAQ
What does the B1317 code mean?
B1317 is an OBD-II diagnostic trouble code that indicates: Battery Voltage High
What causes a B1317 error code?
The most common causes of B1317 include: Generator voltage regulator malfunction; Problems with the generator (brush wear, winding short circuit); Short circuit in the on-board network; Excess of charging current due to faulty battery.
How do I fix a B1317 diagnostic trouble code?
To fix B1317: Check the voltage at the battery terminals with the engine running (normal: 13.8-14.8 V). Check the condition of the generator and voltage regulator. Inspect the wiring harness and contacts in the charging circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B1317?
Do not drive — repair immediately
How much does it cost to fix B1317?
The estimated repair cost for B1317 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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