AutoCodes – Hyundai – P0747 Hyundai

P0747 Hyundai Code - Pressure Control Solenoid 'A' Stuck On

Quick Answer

The Pressure Control (PC) Solenoid Valve an electronic pressure regulator that controls transmission line pressure based on current flow through its coil windings. Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Pressure Control Solenoid. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0747 Hyundai indicates Pressure Control Solenoid 'A' Stuck On.
Common causes: Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Pressure Control Solenoid.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 8,453

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jan 29, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0747 Hyundai Description

The Pressure Control (PC) Solenoid Valve an electronic pressure regulator that controls transmission line pressure based on current flow through its coil windings. As current flow is increased, the magnetic field produced by the coil moves the solenoid’s plunger further away from the exhaust port. Opening the exhaust port decreases the output fluid pressure regulated by the PC solenoid valve, which ultimately decreases line pressure. The line pressure solenoid valve regulates the oil pump discharge pressure to suit the driving condition in response to a signal sent from the Transmission Control Module (TCM).

OBDII Code P0747 Hyundai - Pressure Control Solenoid 'A' Stuck On - AutoCodes.com — P0747 Hyundai Code - Pressure Control Solenoid 'A' Stuck On

What does this mean?

What are the Possible Causes of the DTC P0747 Hyundai?

Low transmission fluid level
Dirty transmission fluid
Faulty Pressure Control Solenoid
Pressure Control Solenoid harness is open or shorted
Pressure Control Solenoid circuit poor electrical connection

How to Fix the DTC P0747 Hyundai?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

When a transmission solenoid is malfunctioned, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body. If the transmission fluid is dirty, it's recommended to change the transmission fluid and if possible removing the transmission pan for further diagnosis. Excessive debris or metal particles on the transmission pan could be an indication that there is a mechanical transmission failure and that the transmission will need to be rebuilt or replaced.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0747 Hyundai code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0747 Hyundai code?

Need more information on how to fix the P0747 Hyundai code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0747 Hyundai code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0747 Hyundai Code

1. What are the common symptoms of OBDII code P0747 (Hyundai)?

- Common symptoms include harsh shifting, transmission slippage, decreased fuel efficiency, and the Check Engine light being illuminated.

2. What does the OBDII code P0747 (Hyundai) indicate?

- This code indicates that the pressure control solenoid 'A' is stuck on in the transmission.

3. What are the possible causes of OBDII code P0747 (Hyundai)?

- The possible causes include a faulty pressure control solenoid, wiring issues, low transmission fluid level, or a failed transmission pump.

4. How serious is OBDII code P0747 (Hyundai)?

- This code should be addressed promptly as it can lead to further damage to the transmission if left untreated.

5. How can I diagnose OBDII code P0747 (Hyundai)?

- Diagnosis involves using an OBDII scanner to retrieve the code, checking the transmission fluid level and condition, and inspecting the pressure control solenoid and its wiring.

6. Can I drive with OBDII code P0747 (Hyundai) present?

- It is not recommended to drive with this code present, as it can cause transmission issues and potential safety hazards.

7. How can OBDII code P0747 (Hyundai) be repaired?

- Repair typically involves replacing the pressure control solenoid 'A', addressing any wiring issues, ensuring proper transmission fluid levels, and testing the transmission operation.

8. Will resetting the OBDII code P0747 (Hyundai) make it go away?

- Resetting the code may temporarily turn off the Check Engine light, but if the underlying issue is not addressed, the code is likely to reappear.

9. Are there any DIY repair tips for OBDII code P0747 (Hyundai)?

- While some may attempt DIY repairs, it is recommended to have a professional diagnose and repair this code due to the complexity of transmission systems.

10. How much does it cost to fix OBDII code P0747 (Hyundai)?

- The cost of repair can vary depending on the specific issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.