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P2797 Lexus Code - Auxiliary Transmission Fluid Pump Control Performance

Quick Answer

The P2797 diagnostic trouble code (DTC) for Lexus vehicles refers to the Auxiliary Transmission Fluid Pump Control Performance. Common causes include Faulty auxiliary transmission fluid pump, Wiring or electrical issues, Malfunctioning 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 Lexus indicates Auxiliary Transmission Fluid Pump Control Performance.
Common causes
Common causes include Faulty auxiliary transmission fluid pump, Wiring or electrical issues, Malfunctioning 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 Lexus Description

The P2797 diagnostic trouble code (DTC) for Lexus vehicles refers to the Auxiliary Transmission Fluid Pump Control Performance. This code indicates that there is a malfunction or irregularity in the operation of the auxiliary transmission fluid pump control system. The auxiliary transmission fluid pump is responsible for ensuring proper lubrication and cooling of the transmission system. When this component fails to function correctly, it can lead to various issues that impact the overall performance and longevity of the vehicle.

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

Common Causes of P2797 Lexus

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

Symptoms of P2797 Lexus

  1. Illuminated check engine light on the dashboard
  2. Transmission slipping or shifting erratically
  3. Delayed engagement when shifting gears
  4. Overheating of the transmission fluid
  5. Reduced fuel efficiency

How to Fix P2797 Lexus

  1. Perform a comprehensive diagnostic scan to retrieve the specific trouble codes and identify the underlying issue.
  2. Inspect the auxiliary transmission fluid pump, wiring, and control module for any signs of damage or malfunction.
  3. Test the pump's functionality and electrical connections to determine if it is operating correctly.
  4. Replace the faulty auxiliary transmission fluid pump if necessary and retest the system to ensure proper operation.
  5. Clear the DTCs from the vehicle's computer system and test drive the vehicle to verify that the issue has been resolved.

Cost to Fix P2797 Lexus

The typical repair costs for addressing the P2797 code can vary depending on the specific cause of the issue and the cost of parts and labor. In general, the repair for this code can range from $200 to $600, including the cost of a new auxiliary transmission fluid pump and any necessary labor charges. It is important to note that diagnosis time and labor rates at auto repair shops can differ, so it is recommended to obtain quotes from multiple sources to get a more accurate estimate. Additionally, factors such as the vehicle's make and model, as well as the location of the repair shop, can impact the overall cost of the repair.

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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 Lexus Code

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

- Common symptoms may include transmission shifting issues, reduced fuel efficiency, and the illumination of the check engine light.

2. What are some possible causes of OBDII code P2797 in a Lexus?

- Possible causes could be a malfunctioning auxiliary transmission fluid pump, wiring or connector issues, low transmission fluid levels, or a faulty transmission control module.

3. How can I diagnose OBDII code P2797 in my Lexus?

- Diagnosing this code typically involves using a diagnostic scanner to retrieve the code, checking the transmission fluid level and condition, inspecting the wiring and connectors related to the auxiliary transmission fluid pump, and testing the pump itself.

4. Are there any DIY repair tips for resolving OBDII code P2797 in a Lexus?

- DIY repair tips may include checking and topping up the transmission fluid, inspecting and cleaning the wiring and connectors, and ensuring that the auxiliary transmission fluid pump is receiving power and functioning correctly.

5. Should I continue driving my Lexus with OBDII code P2797 present?

- It is not recommended to continue driving your Lexus with this code present, as it can lead to further transmission damage or performance issues. It's best to address the underlying cause as soon as possible.

6. Can OBDII code P2797 be triggered by other underlying transmission issues?

- Yes, this code can sometimes be triggered by other transmission issues such as internal pump failures, pressure problems, or electronic control unit malfunctions.

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

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

8. Is it safe to reset the OBDII code P2797 in my Lexus without addressing the underlying issue?

- While you can reset the code temporarily, it is not recommended as the underlying issue may persist and lead to more severe problems down the line.

9. Can I prevent OBDII code P2797 from appearing in my Lexus?

- Regular maintenance, including checking and changing transmission fluid as recommended, inspecting wiring and connectors periodically, and addressing any transmission issues promptly, can help prevent this code from appearing.

10. Does OBDII code P2797 in a Lexus affect vehicle safety?

- While the code itself may not directly impact safety, unresolved transmission issues can lead to unpredictable driving behavior and potential safety hazards. It's important to address the problem promptly.

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