How to Fix P0717: Troubleshooting and Repair Guide

Car trouble codes can be quite frustrating, especially when you’re not familiar with their meanings and how to fix them. In this article, we will focus on the P0717 error code, specifically related to the Turbine Speed Sensor Circuit Range/Performance.

We’ll explore the symptoms, causes, diagnostic steps, and ultimately guide you through the process of fixing the P0717 error. So, if you’re ready to roll up your sleeves and tackle this issue head-on, let’s dive right in!

Understanding the P0717 Trouble Code

The P0717 trouble code is associated with the vehicle’s transmission system and indicates a problem with the Turbine Speed Sensor Circuit Range/Performance. The turbine speed sensor is responsible for monitoring the rotational speed of the input shaft inside the transmission. This information is crucial for the proper functioning of the transmission and its ability to shift gears smoothly.

Symptoms of a P0717 Error

When your vehicle encounters a P0717 error, it may exhibit several symptoms, including:

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  1. Check Engine Light: The most noticeable sign of a P0717 error is the illumination of the check engine light on your vehicle’s dashboard.
  2. Transmission Issues: You may experience erratic shifting, delayed engagement, or a failure to shift gears altogether.
  3. Harsh Shifting: The transmission may exhibit unusually rough or jerky shifting.
  4. Reduced Fuel Efficiency: A P0717 error can lead to decreased fuel efficiency due to improper transmission operation.

Causes of the P0717 Error

There are several potential causes for a P0717 error, including:

  1. Faulty Speed Sensor: A malfunctioning or failed turbine speed sensor is a common cause of this error code.
  2. Wiring or Connector Issues: Damaged, corroded, or loose wiring and connectors can disrupt the signal between the speed sensor and the vehicle’s engine control module (ECM).
  3. Transmission Fluid Problems: Low transmission fluid levels or dirty/contaminated fluid can affect the performance of the speed sensor and trigger the P0717 error.
  4. Other Transmission Issues: In some cases, the error code may be a result of underlying transmission problems, such as a faulty solenoid or a damaged transmission control module (TCM).

Diagnosing the P0717 Error

Before proceeding with any repairs, it’s crucial to diagnose the P0717 error accurately. Follow these steps to identify the cause:

Step 1: Checking for other trouble codes

Using an OBD-II scanner, check if there are any additional trouble codes present in the vehicle’s system. Addressing other related codes may help resolve the P0717 error.

Step 2: Inspecting the transmission fluid level and condition

Inspect the transmission fluid level and condition. Ensure the fluid is at the proper level and appears clean and free from debris. If necessary, perform a transmission fluid change.

Step 3: Testing the speed sensor

Using a multimeter, test the resistance of the speed sensor. Refer to your vehicle’s service manual for the specific resistance values. If the resistance is outside the recommended range, the speed sensor may need to be replaced.

Step 4: Inspecting the wiring and connectors

Thoroughly inspect the wiring and connectors associated with the speed sensor. Look for any signs of damage, corrosion, or loose connections. Repair or replace any faulty components as needed.

Fixing the P0717 Error

Once you’ve diagnosed the cause of the P0717 error, you can proceed with the necessary repairs. Follow these steps to fix the issue:

Step 1: Gathering the necessary tools and materials

Before starting the repair process, ensure you have the required tools and materials handy. These may include a wrench or socket set, a new speed sensor, electrical cleaner, and wire connectors.

Step 2: Disconnecting the battery

To avoid any electrical mishaps, disconnect the vehicle’s battery by removing the negative terminal.

Step 3: Locating the speed sensor

Refer to your vehicle’s service manual to locate the speed sensor. Typically, it is located on the transmission housing or the transfer case.

Step 4: Removing the old speed sensor

Carefully disconnect the wiring harness connected to the speed sensor. Then, use the appropriate tool to remove the old speed sensor from its mounting position.

Step 5: Installing the new speed sensor

Clean the mounting area thoroughly and apply a small amount of transmission fluid to the O-ring of the new speed sensor. Install the new speed sensor in place and secure it firmly.

Step 6: Reconnecting the battery

Once the new speed sensor is installed, reconnect the wiring harness and reattach the negative terminal of the battery.

Tips to Prevent Future P0717 Errors

To minimize the chances of encountering the P0717 error in the future, consider the following preventive measures:

  1. Regular Maintenance: Follow your vehicle’s recommended maintenance schedule, including regular transmission fluid changes.
  2. Quality Transmission Fluid: Always use the recommended type and grade of transmission fluid.
  3. Check for Leaks: Periodically inspect the transmission system for any signs of fluid leaks.
  4. Address Other Issues: Promptly address any other transmission-related trouble codes or symptoms to prevent potential cascading issues.


Fixing a P0717 error requires a systematic approach, starting from diagnosis to the actual repair. By following the outlined steps and utilizing the proper tools and materials, you can successfully resolve the issue and restore your vehicle’s transmission to optimal performance. Remember to prioritize safety throughout the process and consult your vehicle’s service manual for specific instructions. With a little patience and determination, you’ll be back on the road with a smoothly operating transmission in no time.

FAQs (Frequently Asked Questions)

1. Can I continue driving with a P0717 error?

While it may be possible to drive with a P0717 error, it is not recommended. The error can cause various transmission issues, potentially leading to further damage if left unresolved. It’s best to address the problem promptly.

2. Can I replace the speed sensor myself?

If you have experience working on vehicles and access to the necessary tools, you can replace the speed sensor yourself. However, if you’re unsure or uncomfortable with the process, it’s advisable to seek assistance from a qualified mechanic.

3. Why is it essential to follow the recommended maintenance schedule?

Following the recommended maintenance schedule ensures that vital components, such as the transmission, receive proper care and attention. Regular maintenance helps prevent issues like the P0717 error and extends the lifespan of your vehicle’s systems.