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P2797 Toyota Code - Auxiliary Transmission Fluid Pump Control Performance

Quick Answer

The P2797 diagnostic trouble code (DTC) for Toyota vehicles indicates an issue with the auxiliary transmission fluid pump control performance. Common causes include Faulty auxiliary transmission fluid pump, Wiring issues or electrical connection problems, Malfunctioning pump control module. 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
P2797 Toyota indicates Auxiliary Transmission Fluid Pump Control Performance.
Common causes
Common causes include Faulty auxiliary transmission fluid pump, Wiring issues or electrical connection problems, Malfunctioning pump control module.
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 09, 2024
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Code P2797 Toyota Description

The P2797 diagnostic trouble code (DTC) for Toyota vehicles indicates an issue with the auxiliary transmission fluid pump control performance. This code is specifically related to the auxiliary transmission fluid pump, which plays a crucial role in ensuring proper transmission function. The auxiliary pump helps maintain optimal fluid pressure within the transmission system, especially during low-speed driving conditions or when the vehicle is stationary. When the control performance of the auxiliary pump is not within the expected parameters, it can lead to various transmission-related issues.

OBDII Code P2797 Toyota - Auxiliary Transmission Fluid Pump Control Performance
P2797 Toyota Code - Auxiliary Transmission Fluid Pump Control Performance

Common Causes of P2797 Toyota

  1. Faulty auxiliary transmission fluid pump
  2. Wiring issues or electrical connection problems
  3. Malfunctioning pump control module
  4. Low transmission fluid levels
  5. Clogged transmission filter

Symptoms of P2797 Toyota

  1. Erratic shifting behavior
  2. Delayed engagement of gears
  3. Harsh shifting during acceleration or deceleration
  4. Transmission overheating
  5. Transmission slippage

How to Fix P2797 Toyota

  1. Diagnose the root cause of the issue by using a scan tool to retrieve the specific trouble code and examining the auxiliary transmission fluid pump and related components.
  2. Inspect the wiring harness and electrical connections for any signs of damage or corrosion, repairing or replacing as necessary.
  3. Test the auxiliary transmission fluid pump for proper operation and replace if found to be faulty.
  4. Check and replenish transmission fluid levels, ensuring it is at the correct level and quality.
  5. Clear the trouble code from the vehicle's computer system and perform a test drive to confirm that the issue has been resolved.

Cost to Fix P2797 Toyota

The cost of repairing the P2797 code related to auxiliary transmission fluid pump control performance can vary depending on the specific cause of the issue and the labor rates in your area. On average, you can expect to pay anywhere from $200 to $500 for parts and labor. Keep in mind that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to contact local shops for a more accurate estimate. Remember that addressing this issue promptly can help prevent more severe transmission problems and potentially save you money in the long run.

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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 P2797 Toyota Code

1. What are the common symptoms of OBDII code P2797 in a Toyota related to Auxiliary Transmission Fluid Pump Control Performance?

- Common symptoms include harsh shifting, transmission slipping, reduced fuel efficiency, and the illumination of the Check Engine Light.

2. What are the possible causes of OBDII code P2797 in a Toyota?

- Possible causes may include a faulty auxiliary transmission fluid pump, wiring issues, low transmission fluid levels, or a malfunctioning transmission control module.

3. How can I diagnose the issue causing OBDII code P2797 in my Toyota?

- Diagnosis typically involves performing a thorough inspection of the auxiliary transmission fluid pump, checking the wiring for any damage, ensuring proper fluid levels, and using a diagnostic scanner to retrieve specific error codes.

4. Can I continue driving my Toyota with OBDII code P2797 present?

- It is not recommended to continue driving with this code present, as it can lead to further damage to the transmission and potentially result in costly repairs.

5. What are some repair tips for fixing OBDII code P2797 in a Toyota?

- Repair tips may include replacing the auxiliary transmission fluid pump, repairing any damaged wiring, ensuring proper fluid levels, and resetting the error code with a diagnostic scanner after completing the necessary repairs.

6. Is it possible to reset OBDII code P2797 in a Toyota without fixing the underlying issue?

- While it is possible to clear the error code temporarily, the Check Engine Light is likely to reappear if the root cause of the problem is not addressed.

7. How much does it typically cost to repair OBDII code P2797 in a Toyota?

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

8. Can I fix OBDII code P2797 in my Toyota by myself, or should I seek professional help?

- While some experienced DIYers may be able to address this issue themselves, it is recommended to seek professional help, especially when dealing with transmission-related problems to ensure proper diagnosis and repair.

9. Are there any preventive maintenance steps to avoid OBDII code P2797 in a Toyota?

- Regularly checking and maintaining transmission fluid levels, addressing any leaks promptly, and following the manufacturer's recommended service schedule can help prevent issues like OBDII code P2797.

10. How long does it typically take to repair OBDII code P2797 in a Toyota?

- The repair time can vary based on the exact cause of the problem and the extent of the repairs needed, but it may take a few hours to a day to address issues related to OBDII code P2797.

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