P0515
Battery Temperature Sensor System
Generic code
Vehicle Speed and Idle Control System
High severity
Hard repair
Free on OBD DashX
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What P0515 means
- The fault code P0515 indicates that there is an issue with the circuit that monitors the battery temperature sensor. This can affect the performance of the battery and charging system.
Possible symptoms
- Illuminated check engine light
- Reduced battery performance
- Difficulty starting the engine
- Poor charging system performance
Possible causes
- Faulty battery temperature sensor
- Corroded or damaged wiring or connections in the circuit
- Failed engine control module (ECM)
- Battery temperature sensor circuit shorted to ground
Related parts
- Battery Temperature Sensor: Batteries are temperature-sensitive and a battery's optimal operating temperature range is 40 to 70 degrees Fahrenheit. Battery temperature sensor monitors battery temperature during charging. If it senses a temperature variation, it orders the computer control system to change the charging rate. Problems make it hard to start car and may cause stalling
Possible solutions
- Replace the battery temperature sensor
- Check and repair any damaged or corroded wiring or connections
- Replace the engine control module (ECM) if necessary
- Inspect the circuit for shorting to ground
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P0515 on OBD DashX
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