Battery Voltage High
Indicates the battery voltage is above normal range.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The vehicle's computer sees the battery voltage above around 16 volts, which can cause electrical issues or damage components.
What the computer is actually seeing
The computer constantly monitors battery voltage, and if it detects a voltage higher than 16 volts for a set period (around 2 seconds), it triggers the fault code B1560.
What a healthy reading looks like
Normal battery voltage should be between 12.6 and 14.4 volts when the engine is running and not above 16 volts.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Check the battery voltage with a multimeter. Expected range is 12.6-14.4 volts.
- 22. If the voltage is above 16 volts, check the alternator output. It should not exceed 14.5 volts under load.
- 33. Inspect battery terminals for corrosion or loose connections.
- 44. Check for any aftermarket electronics that may be causing higher demands on the system.
- 55. Verify ground connections from the battery to the chassis and engine.
Common causes
- Faulty voltage regulator
- Overcharging alternator
- Corroded battery terminals
- Poor grounding connections
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's best to fix it soon. Driving may cause electrical components to fail due to excessive voltage.
Will this issue come back after clearing the code?
It may come back if the underlying problem isn't fixed. Pay attention to the symptoms.
Why does this code appear with other codes?
It's common for electrical issues to affect multiple systems, leading to multiple fault codes.
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