OBD-II Error Code P0517: Battery Temperature Sensor High – How to Fix It

Q: Can I drive with error code P0517?

Yes, but it may affect battery charging and engine performance. Fix it soon to avoid battery damage.

Q: Where is the battery temperature sensor located?

Typically on or near the battery, often attached to the battery tray or directly to the battery case.

Q: How much does it cost to fix P0517?

DIY cost for a sensor is around $20-$60. If a mechanic replaces the sensor, labor adds $50-$100. ECM replacement is $200-$500+.

Q: What happens if the battery temperature sensor fails?

The ECM may overcharge or undercharge the battery, reducing battery life and causing starting issues.

Q: Can a bad battery cause P0517?

Rarely. The sensor measures battery temperature, not its condition. But a bad battery can affect voltage readings.

Abstract

Error code P0517 indicates that the battery temperature sensor is reporting a voltage higher than expected (high signal). This often means a faulty sensor, wiring issue, or a problem with the engine control module (ECM). You'll need to check the sensor and its circuit to pinpoint the cause.