P2799 Toyota Code - Auxiliary Transmission Fluid Pump Control Circuit High
Quick Answer
The Hybrid Vehicle Control ECU monitors the operation of the Auxiliary Transmission Fluid Pump. 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
- P2799 Toyota indicates Auxiliary Transmission Fluid Pump Control Circuit High.
- 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.
Code P2799 Toyota Description
What are the Possible Causes of the DTC P2799 Toyota?
- 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 Relay
How to Fix the DTC P2799 Toyota?
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 P2799 Toyota 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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Frequently Asked Questions about P2799 Toyota Code
1. What are the common symptoms of OBDII code P2799 in a Toyota related to the Auxiliary Transmission Fluid Pump Control Circuit High?
The common symptoms include difficulty shifting gears, transmission slippage, and the vehicle going into limp mode.
2. What are the possible causes of OBDII code P2799 in a Toyota?
Possible causes include a faulty auxiliary transmission fluid pump, damaged wiring or connectors in the pump circuit, low transmission fluid levels, or a malfunctioning transmission control module.
3. How can I diagnose the issue causing OBDII code P2799 in my Toyota?
Diagnosis typically involves checking the transmission fluid level and quality, inspecting the wiring and connectors in the pump circuit, and testing the auxiliary transmission fluid pump for proper function.
4. Can I continue driving my Toyota with OBDII code P2799 present?
It is not recommended to continue driving with this code present, as it can lead to further damage to the transmission system. It is best to address the issue promptly.
5. How can I repair OBDII code P2799 in my Toyota?
Repair options may include replacing the auxiliary transmission fluid pump, repairing or replacing damaged wiring or connectors, ensuring proper transmission fluid levels, and resetting the trouble code.
6. Is it possible to clear OBDII code P2799 in a Toyota without fixing the underlying issue?
While it is possible to clear the code using a diagnostic tool, it is important to address the root cause of the problem to prevent further transmission issues.
7. Can a DIY enthusiast fix OBDII code P2799 in a Toyota?
Depending on the level of expertise, a DIY enthusiast may be able to address the issue by following repair guides and utilizing the necessary tools. However, professional help is recommended for complex transmission repairs.
8. How much does it typically cost to repair OBDII code P2799 in a Toyota?
The cost of repair can vary depending on the cause of the issue, parts needed, and labor costs. It is advisable to consult a mechanic for an accurate estimate.
9. Are there any preventive maintenance steps to avoid OBDII code P2799 in a Toyota?
Regularly checking and maintaining proper transmission fluid levels, addressing any leaks promptly, and conducting routine transmission inspections can help prevent issues leading to this trouble code.
10. How urgent is it to address OBDII code P2799 in a Toyota?
It is advisable to address the issue promptly to prevent further damage to the transmission system and ensure the safe operation of the vehicle.
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