P1747 code — how to fix error fast
Stay proactive with the P1747 code. Grasp its essence and ensure your vehicle's prime state.
The P1747 code is one of the most common transmission codes that indicates a problem with the valve body. However, most drivers are unaware of the P1747 code meaning or how to properly handle the situation if the code occurs.
In this article, we’ll cover everything you need to know about the code, from its meaning to how to diagnose and fix it.
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 P1747 code mean?
The P1747 code is a generic powertrain code that indicates a problem with the pressure control solenoid (PCS) in the transmission valve body. More specifically, the code indicates that the solenoid has an electrical malfunction.
When the PCS is not working correctly, it can cause a variety of problems with the vehicle’s transmission, including harsh shifting, slipping, and even complete transmission failure. Additionally, the code can trigger the vehicle’s “check engine” light, which is an indication that there is a problem with the vehicle’s onboard diagnostic system.
What causes the P1747 code?
To give you an idea on what’s the best way to fix this code, we first have to dig deep into its common causes. There are all sorts of different reasons that could be behind the code, so let’s take a closer look at each:
Malfunctioning pressure control solenoid
The most common cause of the P1747 code is a malfunctioning pressure control solenoid. If the solenoid is not working correctly, it can cause the transmission to shift harshly or slip, which can trigger the code.
Faulty transmission wiring
Another potential cause of the code is faulty transmission wiring. If the wiring is damaged or has a bad connection, it can cause the solenoid to malfunction, triggering the code.
Low transmission fluid
Low transmission fluid can also cause this code to appear. When the transmission fluid level is low, it can cause the transmission to slip or shift harshly, which can trigger the code.
Dirty transmission fluid
If the transmission fluid is dirty, it can cause the solenoid to become clogged, leading to malfunction and triggering the code.
Which car models does the P1747 code affect the most?
The P1747 code can appear in any vehicle with an automatic transmission. However, some car models are more prone to this code than others. We’ve done some research on the code and vehicles with common reports of transmission-related issues and this list is what we came up with:
- Ford Taurus: The Taurus is a popular sedan that has been known to experience transmission problems which often triggered the code.
- Ford Explorer: The Explorer is a mid-size SUV that has also been known to have transmission issues, including ones related to the code P1747.
- Lincoln LS: The LS is a luxury sedan from Lincoln that has had issues with its transmission, including problems with the pressure control solenoid.
How to diagnose the P1747 code
It’s not always so easy to determine hte reason behind this code even when you know about all the possible culprits. So, here’s our take on the best diagnostic methods to apply:
Use a scan tool
Start by using a scan tool to retrieve the code and any other stored codes. This will help you determine if there are any other problems with the vehicle that may be related to the P1747 code.
Check the transmission fluid level
Next, check the transmission fluid level. If the fluid level is low, top it off and see if the code disappears. Make sure to also pay attention to the composition of the fluid and its appearance since it shouldn’t be dirty or contaminated in any way.
Inspect the wiring
Inspect the wiring for any damage or loose connections. If you find any issues, repair or replace the wiring as needed.
Inspect the transmission valve body
Lastly, inspect the transmission valve body for any damage or debris. If you find any issues, repair or replace the valve body as needed.
How to fix the P1747 code
Right after you’ve finished diagnosing the code, you can use the findings to apply one of the following solutions to fix and remove the code:
Fix the pressure control solenoid
If the pressure control solenoid is malfunctioning, it will need to be replaced. The cost of the replacement will depend on the make and model of the vehicle.
Fixing faulty transmission wiring
Repairing damaged wiring related to the pressure control solenoid could save the day for a relatively low cost if that’s what’s been causing the issue all along.
Add or change transmission fluid
Finally, if the transmission fluid level is low, you can add some more fluid and give the transmission some time to restore its performance. If the fluid is contaminated, you can flush the system and replace it with new fluid.
How to prevent the P1747 code
Preventing the P1747 code requires routine maintenance of the vehicle’s transmission system. Here are some tips to prevent the code from appearing:
- Change transmission fluid regularly
- Check the transmission fluid level
- Keep the transmission system clean
If you’re unsure how to diagnose or fix the code, seek professional help. A certified mechanic can diagnose and fix the problem quickly and efficiently.
Ultimately, the code P1747 doesn’t have to pose a real threat to your car’s transmission system if you act on time and repair the root source of the problem. We realize it’s easier said than done, but at least now you’ll have a complete guide from our automotive experts at hand, so at least we hope that helps.
What are the symptoms of the P1747 code?
The symptoms of a P1747 code can include rough shifts, hesitation when accelerating, and transmission slipping. In some cases, the vehicle may even go into limp mode, which limits its performance to protect the transmission.
Can I still drive my car with the code P1747 being active?
While it’s technically possible to drive your car with a P1747 code, it’s not recommended. Ignoring this issue can lead to further damage to your transmission and potentially expensive repairs down the line. If you’re experiencing symptoms of this code, it’s important to have your vehicle inspected by a qualified mechanic as soon as possible.
How is the P1747 code diagnosed and repaired?
Diagnosing and repairing the P1747 code typically involves a few steps, including using a scan tool to read the code and accessing the transmission to inspect the pressure control solenoid and associated components.