OBD-II code · Powertrain (generic)
P0514 Battery Temperature Sensor Circuit Range or Performance
The battery temperature sensor reports a value within plausible range yet inconsistent with engine bay or coolant temperature. Modern alternator regulation uses battery temperature to adjust charging voltage, so an offset here causes over- or undercharging.
Is it safe to drive with P0514?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySensor element drifted
Symptoms
- EV/hybrid system warning light on
- Reduced power output or limp mode
- Charging may fail or be slowed
- Reduced electric range
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.4–1 h
- Emissions test
- Usually unaffected
- Parts involved
- Battery Temperature Sensor
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.