P0514Battery Temperature Sensor Circuit Range/Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Needs a drive cycle to confirm a fix
- How the car detects it
- The battery temperature sensor – usually an NTC in the battery tray or inside an intelligent battery sensor on the negative terminal – lets the module adjust the charging voltage (higher when cold, lower when warm) and supports battery management and start-stop. P0514 is the plausibility check of the temperature signal. On FCA/Alfa Romeo the temperature comes from the intelligent battery sensor on the negative terminal; P0514 means its value is implausible, and several cases on the Alfa Giulia 2.0 were fixed by engine module software. A fixed substitute temperature is then used; CARB requires plausibility faults to have their own code.
- What you may notice
- Possibly check engine light
- Charging voltage too high or too low
- Start-stop not working
- Likely causes
- LikelyEngine module software (false trigger)
- PossibleBattery sensor or NTC drifting
- PossibleCorrosion at sensor or connector near the battery acid
- RareSensor fitted wrongly after a battery change
- Repair
- Easy · Often possible to do yourself.Typical cost: €0 – €250
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.