P00FD
Battery B State of Charge Performance
State of charge of battery B (typically auxiliary or hybrid battery) shows performance fault — does not behave according to charging model.
State of charge of battery B (typically auxiliary or hybrid battery) shows performance fault — does not behave according to charging model.
Common causes
- high
Battery B aged or sulfated
One of the most commonly reported causes for this code — check this first.
Typical part cost: $90-660
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First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
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Related codes
See related trouble codes
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Frequently asked questions
What does P00FD mean?
P00FD means "Battery B State of Charge Performance". It is a generic OBD-II code that points to a fault in the fuel & air metering / auxiliary emission controls.
What are the most common causes of P00FD?
battery b aged or sulfated — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.
Can I keep driving with this code?
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.
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