OBD II Trouble Code P0517: Battery Temperature Sensor Circuit High

OBD II P0517

What does an OBD-II P0517 code mean?

The OBD-II P0517 code is a code that is seen after scanning your vehicle's diagnostic system. An OBD-II P0517 code means that the engine control module. Generally the normal voltage reading that the ECM should be receiving should be around 5 volts.

To read the battery temperature, a 5 volt reference signal is sent from the PCM to the battery temperature sensor, which is grounded through the sensor return circuit. When the battery temperature increases, it decreases the sensor resistance and the ECM will receive a voltage signal that is higher. When the battery temperature decreases, the voltage signal sent to the ECM decreases.

What triggers/causes the P0517 code?

  • A faulty battery temperature sensor
  • Battery corrosion
  • An open or shorted battery temperature sensor
  • A bad electrical connection to the battery temperature sensor
  • Overheating of the engine

What can the P0517 code indicate for your car?

  • Engine may experience surging
  • Engine light will illuminate
  • Engine may overheat
  • Battery voltage may be low

How does a mechanic diagnose the P0517 code?

  • Use an OBD-II scanner to check for a stored P0517 trouble code
  • Visually inspect all wiring and related electrical connectors for signs of damage
  • Test the battery to ensure it is fully charged
  • Inspect and test electrical circuits related to the battery temperature sensor for signs of damage
  • Test battery temperature sensor for a ground signal and test for a system voltage signal
  • Test resistance of battery temperature sensor

Common mistakes when diagnosing the P0517 code:

In some situations, a common mistake is to actually replace the battery itself when you see this code. Normally the issue isn't with the battery itself, but is related to the sensor in the battery tray.

Is the P0517 code dangerous?

A P0517 code can cause unsafe driving conditions for the driver. As a result, it is recommended to immediately get your vehicle repaired and diagnosed.

How can you fix/remove the P0517 code?

  • Repair any damaged electrical wiring or related connectors
  • Repair any damaged electrical circuits
  • Replace the battery temperature sensor
  • Recharge or replace the battery
  • Clear all codes, test-drive the vehicle, and rescan to see if any codes reappear

Need help with a P0517 code?

Fiix offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. We have a fleet of technicians that range from experts with Mercedes', BMWs, etc to Toyota's, Hondas, and more. Get a quote and book an appointment online, ask us anything on live chat, or give us a call at 647-361-4449.

Related articles

What's The Difference In Gas Level Types

OBD II Trouble Code P0517: Battery Temperature Sensor Circuit High

The Difference Between A Cabin Air Filter And An Air Filter

4 Reasons Why Your Car Might Be Overheating

5 Signs Of A Failing And Faulty Alternator

The History Of Lamborghini And Ferrari

Extend your car's life. Get car advice straight to your inbox.

Join 5000+ car owners and keep your car in its healthiest form.

More Related Articles

Why Your Car Might Squeal When You Turn

Why Your Car Might Squeal When You Turn

It's important to always be aware of the sounds that your car is making, because whenever it's making some noise, it's trying to tell you something in it's own way. A very common sound that you may hear in the life cycle of your car is a squealing or squeaking sound, especially when turning.

Read more

5 Tips For Extending Your Car's Lifespan

5 Tips For Extending Your Car's Lifespan

Everyone has a that one friend whose 1998 Civic still runs like it’s brand new. But how does he do it? And how can you? By following these 5 tips, you’ll spend less on repairs, and get the longest life from your car.

Read more

4 Reasons Why Your Car Might Be Vibrating

4 Reasons Why Your Car Might Be Vibrating

Car vibration, either through the body of the car or through the steering wheel, is a serious issue that requires immediate maintenance. We’re here to get you started on diagnosing the issue with the 4 most common reasons that your car may be vibrating.

Read more