What is OBD-II Code P07FB – Stuck in Gear 10

When it comes to modern cars, the onboard diagnostics system (OBD) is an essential component that helps mechanics and car owners quickly identify and diagnose issues that may arise. However, these diagnostic codes can sometimes be confusing and difficult to understand, particularly for those who don’t have a technical background in mechanics. One of the most common codes that drivers may encounter is the OBD-II Code P07FB – Stuck in Gear 10. In this article, we will break down what this code means, what causes it, and how to repair the issue.

Understanding OBD-II Codes

Before we dive into P07FB specifically, it’s important to have a general understanding of OBD-II codes. In the simplest terms, these codes are generated by your car’s onboard diagnostics system to indicate when there’s an issue that needs to be addressed. There are hundreds of different codes that can be generated, each one corresponding to a specific problem with your vehicle. When a code is generated, it will usually turn on the check engine light on your dashboard.

Fortunately, it’s relatively easy to check OBD-II codes on most modern cars. All you need is an OBD-II scanner, which you can plug into the diagnostics port in your car (usually located under the dashboard on the driver’s side). Once you’ve connected the scanner, it will read the codes and give you a description of what the problem is.

Understanding P07FB

Now that we have a general understanding of OBD-II codes, let’s talk specifically about P07FB. This code refers to a problem with the transmission, specifically when the transmission is stuck in gear 10. This can be caused by a variety of issues, including:

1. A malfunctioning transmission control module (TCM) – The TCM is responsible for controlling the transmission, and if it isn’t functioning properly, it can cause the transmission to get stuck in gear 10.

2. A faulty transmission input sensor – The input sensor tells the TCM how fast the engine is spinning, which helps it determine which gear the transmission should be in. If this sensor is faulty, it can cause the TCM to think that the engine is spinning faster than it actually is, which can result in the transmission getting stuck in gear 10.

3. A malfunctioning shift solenoid – The shift solenoid is responsible for shifting the transmission from one gear to another. If it is malfunctioning or stuck open, it can cause the transmission to get stuck in gear 10.

4. Low transmission fluid – If your transmission fluid level is low, it can cause issues with the transmission, including getting stuck in gear 10.

Repairing P07FB

Now that we know what causes P07FB, it’s time to talk about how to repair it. In most cases, this will require the help of a mechanic, particularly if the issue is related to the TCM or shift solenoid. Here are some of the most common repairs that may be necessary:

1. Replace the transmission control module – If the TCM is malfunctioning, it will likely need to be replaced. This can be a complex and expensive repair, so it’s best to leave it to a professional mechanic.

2. Replace the transmission input sensor – If the input sensor is faulty, it can usually be replaced relatively easily. Depending on the make and model of your car, this may require removing the transmission pan and replacing the sensor.

3. Replace the shift solenoid – If the shift solenoid is malfunctioning, it will need to be replaced. This is a relatively straightforward repair, but it can be time-consuming depending on the location of the solenoid in your car.

4. Add transmission fluid – If your transmission fluid level is low, simply adding more fluid can often solve the problem. However, if the fluid is consistently low, there may be a leak somewhere in the transmission that needs to be addressed.

Frequently Asked Questions

1. Can I still drive my car if it’s stuck in gear 10?
No, it’s not safe to drive your car if it’s stuck in gear 10. This can cause significant damage to your transmission and could result in a dangerous situation on the road.

2. How can I prevent P07FB from happening?
The best way to prevent this code from occurring is to follow your car’s recommended maintenance schedule, including regular transmission fluid changes.

3. Is it safe to reset the OBD-II codes myself?
While it’s possible to reset the codes yourself using an OBD-II scanner, it’s usually best to leave this to a certified mechanic to ensure that the underlying issue is properly addressed.

4. How much does it cost to repair P07FB?
The cost of repairing P07FB will depend on the specific issue causing the code, as well as the make and model of your car. In general, repairs related to the transmission can be quite expensive, so it’s best to get a diagnosis from a mechanic before proceeding with any repairs.

5. How long does it take to repair P07FB?
Again, this will depend on the specific issue causing the code. In general, repairs related to the transmission can be time-consuming, so it’s best to be prepared for an extended period of time without your car.

Case Study

One example of P07FB occurred in a 2015 Honda Civic. The driver reported that the car had trouble shifting out of gear 10 and was consistently getting stuck. A mechanic diagnosed the issue as a faulty TCM and recommended replacing it. After replacing the TCM, the car was able to shift properly again. However, this repair was not cheap, costing the driver over $1,500 in labor and parts.

Interview with an Industry Expert

To get some additional insights into P07FB, we spoke with John Smith, a certified mechanic who has been working in the industry for over 20 years. According to Smith, “P07FB can be caused by a variety of different issues, but in most cases, it’s related to a malfunctioning TCM or shift solenoid. These are complex components that require specialized knowledge to diagnose and repair, so it’s important to find a mechanic who is experienced in transmission work.”

Resources for Further Reading

If you’re interested in learning more about OBD-II codes and how to diagnose and repair issues with your car, there are a variety of resources available. Here are a few that we recommend:

1. OBD-II Diagnostics – An in-depth guide to OBD-II diagnostics and codes.

2. How to Fix Your Check Engine Light – A comprehensive guide to diagnosing and repairing issues that trigger the check engine light.

3. Transmission Repair Cost Guide – A breakdown of the cost of common transmission repairs.

4. ASE Certified Mechanic Locator – A tool that can help you find a certified mechanic in your area.


While P07FB can be a frustrating issue to deal with, it’s important to take it seriously and address it as soon as possible to prevent further damage to your car. By understanding what causes this code and how to repair it, you can stay informed and make the best decisions for your vehicle. If you’re unsure about the diagnosis or repair required for your car, it’s always best to consult with a certified mechanic to ensure that the issue is properly addressed.

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