Battery Positive Voltage Out of Range
The computer detects voltage at the battery that is outside acceptable limits.
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)
Your battery is either too high or too low on voltage, which is not what the system expects for normal operation.
What the computer is actually seeing
The computer monitors battery voltage and expects it to be between 12.4V and 14.7V while running. Anything below 12.0V means the battery is low, and above 15.5V indicates over-voltage conditions.
What a healthy reading looks like
Battery voltage should be between 12.4V (engine off) and 14.5V (engine running).
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. What do you read? (Decision Point: If below 12.4V or above 14.7V, proceed to step 2; else, re-evaluate)
- 22. Inspect the battery terminals and cables for corrosion and tightness. Are they clean and securely connected? (Decision Point: If not, clean and tighten; if yes, proceed to step 3)
- 33. Test the alternator output while the engine is running. What voltage do you see? (Decision Point: If output is below 13.5V or above 14.5V, replace the alternator; if within range, proceed to step 4)
- 44. Check all wiring associated with the battery and alternator for damage or loose connections. Any visible issues? (Decision Point: If yes, repair or replace; if no, consider battery replacement or further diagnostics)
Common causes
- Weak or dying battery
- Faulty alternator
- Bad battery connections or cables
- Corroded terminals
- Faulty wiring to the battery or sensor
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's generally safe to drive short distances, but you risk being stranded if the battery fails completely.
Will this code come back after repairs?
If all issues are fixed properly, the code should not return.
Why does this code sometimes pair with a check engine light?
It can pair with other codes related to charging or battery management systems, indicating overall power supply issues.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
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