Skip the auto shop - Our mechanics make house calls

OBD-II Trouble Code P0517: Battery Temperature Sensor Circuit High

diagnostic check engine light

P0517 code definition

The P0517 code is generic powertrain code related to the vehicle’s speed controls and idle control system-related problems. In this case, the engine control module (ECM) has detected a high voltage reading from the battery temperature circuit.

What the P0517 code means

A code P0517 will be stored when the ECM has been sent a high voltage reading from the battery temperature sensor; typical readings are around 5-volts). The ECM will utilize battery temperature sensor input data, as well as charging system voltage data, to determine the rate the alternator will charge the battery. It will also use battery temperature as a base for activating heated oxygen sensors as well as evaporative emissions control system components.

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 battery temperature increases, it decreases the sensor resistance the ECM will receive a voltage signal that is higher. When the battery temperature decreases, the voltage signal decreases.

Usually located beneath the battery in the battery tray, it is frequently part of the battery tray.

What causes the P0517 code?

Several problems may cause a P0517 code including:

What are the symptoms of the P0517 code?

Symptoms of a P0517 code may include:

How does a mechanic diagnose the P0517 code?

A mechanic may use several methods to diagnose a P0517 trouble code, including:

  • Utilize 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 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

A common mistake when diagnosing or repairing a P0517 code is replacing the battery itself, when the problem is typically related to the sensor in the battery tray.

How serious is the P0517 code?

Because a vehicle’s safe driving operation could be impacted due to faults that store a P0517 code, although most likely in a minor way, this code is considered a potentially serious code. When this code appears, it is recommended to immediately take your vehicle to your local service center or mechanic for repair and diagnosis.

What repairs can fix the P0517 code?

Several repairs can fix a P0517 trouble code and include:

Additional information related to a P0517 code

Because the battery temperature sensor also relates to activating the heated oxygen sensor and evaporative emissions systems, codes related to both may accompany a stored P0517 code.

Need help with a P0517 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

Post a question and get free advice from our certified mechanics.

ASK A QUESTION

More related articles

How to Transfer a Car Title in Idaho
In order to prove ownership of a car, you must have the title. However, when a car is sold, given away or inherited, the title needs...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
The Traveler’s Guide to Driving in Malaysia
CraigBurrows / Shutterstock.com Malaysia is a popular destination for many tourists today. The country has amazing sights and attractions that you will want to explore....


Related questions

Q: Check engine light flashing, sucking fuel, procrastinating when accelerating...

This is a very odd set of symptoms. I would suggest ruling out any fuel-related issues as the poor fuel economy and lack of power could be related to faulty sensors like the throttle body sensor, mass air flow sensor,...

Q: Does the OBD System Measure Gases in the Car's Exhaust?

The onboard diagnostic (OBD) system utilizes sensors mounted in the engine exhaust stream to measure the amount of oxygen that comes out of the engine after the combustion process. When an engine intakes a certain amount of air into the...

Q: I have the check engine light on and checked for DTC's it says ECM set and CEM set

Hi there, thanks for writing in about your Volvo. There should be specific alpha numeric "codes" displayed on the Code Reader. Do you see/have those "codes"? These will help pinpoint any faults and assess the issue. I would recommend having...