P0773 code — how to fix error fast

Most drivers never bother with OBD2 codes like P0773 and decide to ignore the issue and keep driving their cars as they were. In this case, you really shouldn’t overlook this code as it can lead to some severe transmission issues and even cause a complete transmission rebuild.

Of course, those familiar with the P0773 code meaning won’t do such a thing, and we hope you won’t either since we’ve prepared a complete guide on this code and ways of tackling it. You’ll be able to figure out a reason behind the code to address it properly and fix it for good with a low chance of recurrence, so follow our lead as we deal with the code.

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 P0073 code mean?

The P0773 code is a diagnostic trouble code that is related to your car’s transmission system. It indicates a problem with the shift solenoid E performance, which is responsible for controlling the flow of transmission fluid. The shift solenoid E is responsible for shifting gears in your car’s transmission system. When the solenoid malfunctions, it can cause your car to jerk, slip, or have difficulty shifting gears.

In other words, if the solenoid completely fails, you may be stuck in one gear with difficulties shifting into the others. This can prove to be pretty dangerous while driving at a higher speed, and you may experience quite a few symptoms including gear slippage and rough shifting.

What causes the P0073 code?

Several potential causes can trigger the P0773 code. It is essential to identify the root cause of the problem to ensure that the correct repairs are made. Here are some common causes of the code:

Electrical issues

One of the most common causes of the P0773 code is an electrical problem. The shift solenoid E requires a specific amount of voltage to function correctly. If there is a problem with the solenoid’s electrical connection or wiring, it can cause the solenoid to malfunction, leading to the code.

Mechanical issues

Mechanical problems can also cause this code. The shift solenoid E is located in the transmission system and can be affected by debris or other foreign objects that may get lodged in the system. These objects can cause the solenoid to malfunction, leading to the code being activated.

Low transmission fluid level

Low transmission fluid level is another potential cause of the P0773 code. The shift solenoid E requires a specific amount of transmission fluid to function correctly. If the fluid level is low, it can cause the solenoid to malfunction.

Which car models does the P0773 code affect the most?

While any car model can experience issues related to the shift solenoid, some models are more prone to this problem than others. Here are a few car models that are most likely to be affected by the code P0773:

• Honda Accord: The 2003-2007 Honda Accord is known to have issues with the TCC solenoid, with symptoms including erratic shifting and hesitation.
• Toyota Corolla: The 2005-2008 Toyota Corolla can experience issues with the TCC solenoid circuit, leading to symptoms such as stalling and poor fuel economy.
• Ford F-150: The 2010-2013 Ford F-150 may encounter problems with the TCC solenoid, resulting in a check engine light and reduced performance.

How to diagnose the P0773 code

Diagnosing the P0773 code can be a challenging task, but it is essential to identify the problem’s root cause. Here are some diagnostic methods that can help you identify the problem:

Use a scan tool

Using a scan tool is one of the easiest ways to diagnose the P0773 code. The scan tool will read the diagnostic trouble code and provide you with information about the problem. It will also give you a detailed report of the system’s performance, which can help you identify the root cause of the problem.

Perform a visual inspection

Performing a visual inspection of the transmission system can also help you identify the problem. Look for any signs of damage or debris that may have gotten lodged in the system. Check the transmission fluid level and condition to ensure that it is not the cause of the problem.

Conduct a road test

Conducting a road test is another way to diagnose the P0773 code. During the test, pay attention to the car’s performance, especially when shifting gears. If you notice any jerking or slipping, it may be an indication of a problem with the shift solenoid E.

How to fix the P0773 code

Fixing the P0773 code will depend on the root cause of the problem. Now that you have all the means to figure out the reason behind the code, here’s what you can do to solve it:

Repair electrical Issues

If the problem is related to an electrical issue, you may need to replace the wiring or the shift solenoid E. This will ensure that the solenoid receives the appropriate voltage to function correctly.

Repair physical transmission component damage

If the problem is related to a mechanical issue, you may need to remove the debris or foreign objects that may have gotten lodged in the transmission system. This will help the solenoid function correctly and prevent the P0773 code from appearing.

Top up or flush transmission fluid

If the problem is related to low transmission fluid levels, you may need to add more fluid to the system. This will ensure that the solenoid has enough fluid to function correctly.

How to prevent the P0773 code

Preventing the P0773 code from appearing requires routine maintenance and attention to your car’s transmission system. Here are some preventative measures that can help:

• Conduct routine maintenance on your car’s transmission system, including fluid changes and filter replacements
• Be vigilant about any signs of transmission problems, such as jerking or slipping
• Keep up with your car’s routine maintenance schedule to ensure that any potential problems are identified and addressed promptly

Doing these seemingly simple maintenance tasks can significantly improve your odds of never having to deal with this code again.

Our take

If you leave the code P0773 unattended for long enough, it will inevitably lead to serious transmission issues in your car. So, the best thing you can do is to get some help by understanding the code’s meaning, the reasons behind it, and ways of fixing and preventing it.

Now you’ll have all the right pieces of information and advice from our automotive experts to deal with the code with the help of a trusted mechanic to do the transmission repairs if needed.