P0714 code — how to fix error fast

Among all the OBD2 codes related to the transmission system, P0714 is the most common one. It’s important to find a solution fast after diagnosing this code since it’s notoriously known to prevent drivers from spotting transmission fluid problems that could tear down the gearbox.

Naturally, our team needed to interfere and prevent you from making rookie mistakes when it comes to vehicle maintenance. We’ll tell you exactly what to do if you receive this code, as well as elaborate a bit more on the P0714 code meaning to help you out.

Why you can trust REREV’s OBD2 code advice: Our automotive expert researchers with experienced mechanics undertakes a thorough research methodology to deliver precise insights on OBD codes. Find out more about OBD2 codes research process..

What does the P0714 code mean?

The P0714 code is related to the transmission fluid temperature sensor circuit. When this code appears, it means that there is a malfunction in the circuit, and the vehicle’s computer is unable to accurately determine the transmission fluid temperature.

This can have a negative impact on the vehicle’s performance and can even cause damage to the transmission over time. Some common symptoms of the P0714 code include rough shifting, slipping gears, decreased fuel efficiency, and decreased engine performance.

If you notice any of these symptoms, it’s important to have your vehicle diagnosed as soon as possible to prevent further damage.

What causes the P0714 code?

The P0714 code can be caused by a variety of issues, including a faulty transmission fluid temperature sensor. It could also be a damaged or corroded sensor connector, a short circuit in the sensor wiring, or a failure in the vehicle’s computer.

So, let’s take a closer look at each of these potential causes to get you on the road towards the solution:

Faulty transmission fluid temperature sensor

The most common cause of the P0714 code is a faulty transmission fluid temperature sensor. Over time, these sensors can wear out or become damaged, which can cause them to malfunction.

When this happens, the vehicle’s computer is unable to accurately determine the transmission fluid temperature, which can lead to a range of performance issues.

Damaged or corroded sensor connector

Another potential cause of the P0714 code is a damaged or corroded sensor connector. If the connector is damaged or corroded, it can cause a poor connection between the sensor and the vehicle’s computer, which can lead to inaccurate readings and performance issues.

Short circuit in the sensor wiring

A short circuit in the sensor wiring can also cause the P0714 code to appear. If there is a short circuit in the wiring, it can cause the sensor to malfunction and send inaccurate readings to the vehicle’s computer. This can lead to a range of performance issues and can even cause damage to the transmission over time.

Failure in the vehicle’s computer

Finally, a failure in the vehicle’s computer can cause this code to appear. If the computer is unable to accurately read the transmission fluid temperature, it may be due to a failure in the computer itself.

This can be a more serious issue and may require the computer to be replaced.

Which car models does the P0714 code affect the most?

Since this code can be triggered in almost any vehicle with an automatic transmission, it gets difficult to say about the most exposed models. Even so, our team put in sufficient effort to scroll down the driver complaints and NHTSA reports and these are the models we’ve deemed vulnerable:

• Nissan Altima: The P0714 code can be caused by a faulty transmission fluid temperature (TFT) sensor or a damaged wiring harness. In the case of the Nissan Altima, this problem is most commonly caused by a failed TFT sensor. The sensor is located on the valve body inside the transmission and is responsible for sending data to the engine control module (ECM) about the temperature of the transmission fluid.
• Nissan Sentra: Like the Altima, the Sentra can experience the code due to a faulty TFT sensor or damaged wiring harness. In some cases, this issue can also be caused by a malfunctioning ECM.
• Nissan Maxima: The P0714 code in the Maxima is typically caused by a failed TFT sensor or damaged wiring harness. In some cases, this issue can also be related to a low transmission fluid level or a malfunctioning ECM.

How to diagnose the P0714 code

Diagnosing the code can be tricky even for an experienced mechanic, which is why it’s so important to use the right approach. Considering all the possible causes of the code we’ve mentioned, here’s what you can do:

Use an OBD2 scanner

The first step in diagnosing the P0714 code is to use a diagnostic tool to read the code and determine the cause of the issue. This tool will provide a code that indicates what is causing the problem, which can help the mechanic narrow down the potential causes.

Test the TFT sensor

Once you’ve determined that the code is related to the transmission fluid temperature sensor circuit, you can check the sensor’s voltage. It’s best done using a multimeter to check the resistance of the sensor or using a scan tool to monitor the sensor’s output.

Checking the sensor connector

If the sensor itself is functioning properly, you will need to check the sensor connector for damage or corrosion. If the connector is damaged or corroded, it will need to be replaced to fix the issue.

Checking the sensor wiring

Finally, if the sensor and connector are both functioning properly, your mechanic will need to check the sensor wiring for a short circuit. This may involve using a multimeter to check the resistance of the wiring or performing a visual inspection to look for any damage or wear.

How to fix the P0714 code

As soon as you are able to properly diagnose the code and figure out the reason behind it, you can use one of the potential solutions listed below to fix and remove it:

Replace a faulty sensor

If the P0714 code is caused by a faulty transmission fluid temperature sensor, the sensor will need to be replaced. This is a relatively simple fix that can be completed in just a few hours.

Fix damaged sensor connections

In case the code is caused by a damaged or corroded sensor connector, the connector will need to be repaired or replaced. This may involve soldering a new connector in place or replacing the entire wiring harness.

Fix a short circuit in the wiring

Soldering a new wire in place or replacing the entire wiring harness could be required to fix the code if it’s caused by a short circuit in sensor wiring.

Check or update the computer

If the P0714 code is caused by a failure in the vehicle’s computer, the computer will need to be replaced. This is a more serious issue that may require the vehicle to be taken to a professional mechanic, but it can often simply be reprogrammed to fix it.

How to prevent the P0714 code

Preventing the code requires regular maintenance and care for your vehicle’s transmission system. This may include the following maintenance tasks:

• Regular fluid changes
• Check the transmission system for leaks or damage
• Avoid harsh driving and rough gear shifts

By following these preventative measures, you can help ensure that your transmission system stays in good working condition and avoid issues like the P0714 code.

Our take

If you do experience any performance issues or see the P0714 code appear on your vehicle’s diagnostic system, it’s important to have your vehicle diagnosed and repaired as soon as possible to prevent further damage.

Our team hopes that this guide will be just what you need to figure out the problem behind the code and fix it properly without leaving any chance for its recurrence.