AutoCodes – Lexus – P2797 Lexus

P2797 Lexus Code - Auxiliary Transmission Fluid Pump Control Performance

Quick Answer

The Oil Pump Motor Controller controls the rotation speed of the Oil Pump Motor (three-phase brushless motor) in accordance with rotation speed request signals sent from the Hybrid Vehicle Control ECU. Common causes include Faulty Oil Pump Motor Controller, Oil Pump Motor Controller harness is open or shorted, Oil Pump Motor Controller circuit poor electrical connection. 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 Oil Pump Motor Controller, Oil Pump Motor Controller harness is open or shorted, Oil Pump Motor Controller circuit poor electrical connection.
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.

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Code Popularity 2,401

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 Aug 26, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2797 Lexus Description

OBDII Code P2797 Lexus - Auxiliary Transmission Fluid Pump Control Performance - AutoCodes.com — P2797 Lexus Code - Auxiliary Transmission Fluid Pump Control Performance

What does this mean?

What are the Possible Causes of the DTC P2797 Lexus?

Faulty Oil Pump Motor Controller
Oil Pump Motor Controller harness is open or shorted
Oil Pump Motor Controller circuit poor electrical connection
Faulty Hybrid Vehicle Control ECU
Faulty Oil Pump Motor

How to Fix the DTC P2797 Lexus?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2797 Lexus 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.

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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.