AutoCodes – Generic – P0A6F

P0A6F Code - Generator Phase U Current

Quick Answer

The inverter converts the high-voltage direct current of the HV battery and the alternating current for the MG1/MG2. Common causes include Faulty Inverter With Converter Assembly, Inverter With Converter Assembly harness is open or shorted, Inverter With Converter Assembly 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: P0A6F indicates Generator Phase U Current.
Common causes: Common causes include Faulty Inverter With Converter Assembly, Inverter With Converter Assembly harness is open or shorted, Inverter With Converter Assembly 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 2,422

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 May 11, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0A6F Description

The inverter converts the high-voltage direct current of the HV battery and the alternating current for the MG1/MG2. The inverter contains a three-phase bridge circuit, which consists of 6 power transistors each for the MG1 and the MG2, in order to convert the direct current and the three-phase alternating current.
The HV control ECU controls the actuation of the power transistors.
The inverter transmits information that is necessary for effecting control, such as the amperage and voltage, to the HV control ECU.
The motor inverter current sensors detect the amperage that flows through the V and W phase cables between the inverter and MG1/MG2. The inverter transmits information that is necessary for effecting control, such as the amperage and voltage, to the HV control ECU.
The HV control ECU monitors the inverter current sensors to detect a malfunction in the sensor system.

OBDII Code P0A6F - Generator Phase U Current - AutoCodes.com — P0A6F Code - Generator Phase U Current

What does this mean?

What are the Possible Causes of the DTC P0A6F?

Faulty Inverter With Converter Assembly
Inverter With Converter Assembly harness is open or shorted
Inverter With Converter Assembly circuit poor electrical connection

How to Fix the DTC P0A6F?

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 P0A6F 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.

Need more information about the P0A6F code?

Need more information on how to fix the P0A6F code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0A6F code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P0A6F Lexus — Generator Phase U Current
P0A6F Toyota — Generator Phase U Current

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 P0A6F Code

1. What are the common symptoms of OBDII code P0A6F (Generator Phase U Current)?

- Common symptoms include the check engine light turning on, decreased fuel efficiency, and potential issues with the vehicle's electrical system.

2. What are the possible causes of OBDII code P0A6F?

- The code P0A6F can be caused by a faulty generator, wiring issues in the generator phase U circuit, or problems with the vehicle's ECM (Engine Control Module).

3. How can I diagnose the OBDII code P0A6F?

- Diagnosis typically involves using a scan tool to read the code, checking the generator and related wiring for any visible damage, and testing the generator phase U current.

4. Can I still drive my vehicle with the OBDII code P0A6F present?

- It is not recommended to drive the vehicle with the code P0A6F present, as it can lead to further electrical system issues and potential vehicle breakdown.

5. How can I repair OBDII code P0A6F?

- Repair options include replacing the faulty generator, repairing any damaged wiring in the generator phase U circuit, or reprogramming the ECM if necessary.

6. Is it safe to reset the OBDII code P0A6F and continue driving?

- While you can reset the code temporarily, it is important to address the underlying issue causing the code to prevent potential long-term damage to the vehicle.

7. Can a DIY enthusiast fix OBDII code P0A6F at home?

- Depending on the skill level and access to tools, some DIY enthusiasts may be able to address the code by replacing the generator or repairing wiring issues.

8. What is the typical cost to repair OBDII code P0A6F at a mechanic?

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

9. Are there any preventative maintenance tips to avoid OBDII code P0A6F in the future?

- Regularly inspecting the vehicle's electrical system, performing routine generator checks, and addressing any warning signs promptly can help prevent the occurrence of code P0A6F.

10. Can OBDII code P0A6F cause any long-term damage to the vehicle if left unresolved?

- Ignoring OBDII code P0A6F can lead to potential damage to the vehicle's electrical system, affecting its overall performance and reliability over time.