OBD-II code · Powertrain (generic)
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.
Is it safe to drive with P00FD?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyBattery B aged or sulfated
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1.5 h
- Emissions test
- Usually unaffected
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Battery B, Charging System
Related codes
- P057FBattery A State of Charge Performance
- P00FATurbocharger Outlet Pressure Sensor A Circuit Low
- P00FBTurbocharger Outlet Pressure Sensor A Circuit High
- P00FCTurbocharger Outlet Pressure Sensor A Intermittent/Erratic
- P00FEEVAP System Tank Vapor Line Restricted/Blocked
- P00FFBody Control Module Requested MIL Illumination
- P0100Mass or Volume Air Flow Circuit Malfunction
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.