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P0747 Acura Code - Clutch Pressure Control Solenoid 'A' Stuck On

Quick Answer

The diagnostic trouble code (DTC) P0747 for Acura vehicles indicates that the clutch pressure control solenoid 'A' is stuck in the on position. Common causes include Faulty clutch pressure control solenoid 'A', Electrical issues such as a short circuit or open circuit, Wiring harness problems. 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 Acura indicates Clutch Pressure Control Solenoid 'A' Stuck On.
Common causes
Common causes include Faulty clutch pressure control solenoid 'A', Electrical issues such as a short circuit or open circuit, Wiring harness problems.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 06, 2024
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Code P0747 Acura Description

The diagnostic trouble code (DTC) P0747 for Acura vehicles indicates that the clutch pressure control solenoid 'A' is stuck in the on position. This solenoid is responsible for regulating the hydraulic pressure in the transmission's clutch system. When the solenoid is stuck in the on position, it can lead to issues with shifting gears smoothly, causing potential damage to the transmission components.

OBDII Code P0747 Acura - Clutch Pressure Control Solenoid 'A' Stuck On
P0747 Acura Code - Clutch Pressure Control Solenoid 'A' Stuck On

Common Causes of P0747 Acura

  1. Faulty clutch pressure control solenoid 'A'
  2. Electrical issues such as a short circuit or open circuit
  3. Wiring harness problems
  4. Internal transmission component failure
  5. Low transmission fluid levels or contaminated fluid

Symptoms of P0747 Acura

  1. Harsh or delayed shifting
  2. Slipping gears
  3. Difficulty engaging or disengaging gears
  4. Reduced fuel efficiency
  5. Illumination of the Check Engine Light

How to Fix P0747 Acura

  1. Perform a diagnostic scan to confirm the P0747 code and identify the specific issue with the clutch pressure control solenoid 'A'.
  2. Inspect the wiring harness and electrical connections for any damage or corrosion, repairing or replacing as needed.
  3. Test the clutch pressure control solenoid 'A' to determine if it is functioning correctly and replace it if necessary.
  4. Check the transmission fluid level and condition, topping up or flushing and replacing as required.
  5. Clear the DTC and test drive the vehicle to ensure that the issue has been resolved and that the transmission is operating smoothly.

Cost to Fix P0747 Acura

The typical repair costs for addressing the P0747 code on an Acura vehicle can vary depending on the specific model and year. On average, the parts cost for a new clutch pressure control solenoid 'A' ranges from $100 to $300, with additional labor costs of approximately $150 to $300. Therefore, the total repair cost could fall between $250 and $600. It's important to note that these estimates are general guidelines and actual costs may vary based on factors such as the location of the repair shop, the vehicle's make and model, and any additional repairs or parts required. It is recommended to obtain quotes from multiple reputable auto repair shops to get a more accurate cost estimate for addressing the P0747 code.

What does this mean?

Tech Notes for P0747 Acura

When a transmission solenoid has 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, remove 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.









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When is the Code Detected?

The gear required by the Engine Control Module (ECM) does not match the actual gear when driving

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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 Acura Code

1. What does the OBDII code P0747 mean on an Acura?

P0747 indicates that the Clutch Pressure Control Solenoid 'A' is stuck in the "on" position, which can cause transmission performance issues.

2. What are the common symptoms of code P0747 on an Acura?

Symptoms include harsh or delayed shifting, transmission slippage, poor fuel economy, and possibly the vehicle going into limp mode.

3. What causes the P0747 code to appear on an Acura?

Possible causes include a faulty clutch pressure control solenoid, low or contaminated transmission fluid, a clogged transmission filter, or internal transmission damage.

4. Can low transmission fluid cause the P0747 code on an Acura?

Yes, low or contaminated transmission fluid can lead to improper solenoid operation and trigger the P0747 code.

5. How do you diagnose the P0747 code on an Acura?

Diagnosis involves checking the transmission fluid level and condition, testing the solenoid for proper operation, inspecting wiring and connectors for damage, and performing a transmission pressure test.

6. Can you drive an Acura with code P0747?

Driving with the P0747 code is not recommended, as it can cause further transmission damage or result in unsafe driving conditions.

7. How much does it cost to repair the P0747 code on an Acura?

Repair costs vary widely but may range from $150 to $500 for solenoid replacement. If internal transmission damage is found, repairs could cost significantly more.

8. Can a clogged transmission filter cause the P0747 code on an Acura?

Yes, a clogged transmission filter can restrict fluid flow, leading to solenoid issues and triggering the P0747 code.

9. How can I prevent the P0747 code from recurring on my Acura?

Regular maintenance, such as changing the transmission fluid and filter at recommended intervals, and promptly addressing any transmission issues, can help prevent this code.

10. Do I need to replace the transmission to fix the P0747 code on an Acura?

Not necessarily. In many cases, replacing the solenoid or addressing fluid issues resolves the problem. However, severe internal transmission damage may require a rebuild or replacement.

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