AutoCodes – Honda – P0AA6 Honda

P0AA6 Honda Code - High Voltage Short Circuit

Quick Answer

There is a high voltage wiring system, including the 144 V high voltage battery, in the Integrated Motor Assist (IMA) system. Common causes include Check for other codes, Faulty Motor Power Inverter (MPI), Motor Power Inverter (MPI) harness is open or shorted. 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: P0AA6 Honda indicates High Voltage Short Circuit.
Common causes: Common causes include Check for other codes, Faulty Motor Power Inverter (MPI), Motor Power Inverter (MPI) harness is open or shorted.
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 1,610

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 Apr 11, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0AA6 Honda Description

There is a high voltage wiring system, including the 144 V high voltage battery, in the Integrated Motor Assist (IMA) system. The high voltage wiring system is insulated from the body on both positive and negative polarities. The Motor Control Module (MCM) detects decreases in the insulated resistance (short circuit resistance), and if the resistance drops to a specified resistance, a malfunction is detected, and a Diagnostic Trouble Code (DTC) is stored.

OBDII Code P0AA6 Honda - High Voltage Short Circuit - AutoCodes.com — P0AA6 Honda Code - High Voltage Short Circuit

What does this mean?

What are the Possible Causes of the DTC P0AA6 Honda?

Check for other codes
Faulty Motor Power Inverter (MPI)
Motor Power Inverter (MPI) harness is open or shorted
Motor Power Inverter (MPI) circuit poor electrical connection

How to Fix the DTC P0AA6 Honda?

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 P0AA6 Honda 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 P0AA6 Honda code?

Need more information on how to fix the P0AA6 Honda code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0AA6 Honda code diagnosed by a professional: Find a repair shop in your area

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 P0AA6 Honda Code

1. What are the common symptoms of OBDII code P0AA6 in a Honda indicating a high voltage short circuit?

The common symptoms include illumination of the check engine light, reduced fuel efficiency, and potential drivability issues.

2. What are the possible causes of the OBDII code P0AA6 in a Honda related to a high voltage short circuit?

Possible causes include a faulty high voltage battery, damaged high voltage cables, poor electrical connections, or issues with the hybrid battery control module.

3. How can I diagnose the high voltage short circuit causing the OBDII code P0AA6 in my Honda?

Diagnosis involves using a multimeter to test the high voltage battery and cables for proper voltage levels and continuity. It may also require checking the hybrid battery control module for faults.

4. Can driving with the OBDII code P0AA6 indicating a high voltage short circuit in a Honda cause further damage?

Continuing to drive with this code present can potentially damage other components of the hybrid system, leading to more expensive repairs in the future.

5. What are some repair tips for addressing the OBDII code P0AA6 in a Honda due to a high voltage short circuit?

Repair tips include inspecting and repairing any damaged high voltage cables, ensuring proper connections, and potentially replacing the high voltage battery if necessary.

6. Is it safe to attempt DIY repairs for the high voltage short circuit causing the OBDII code P0AA6 in a Honda?

Due to the high voltage nature of the hybrid system, it is recommended to seek professional help or consult a qualified technician for repairs to avoid personal injury or further damage.

7. How much can I expect to pay for repairing the high voltage short circuit causing the OBDII code P0AA6 in my Honda?

The cost of repairs can vary depending on the extent of the damage and the specific components requiring replacement, but it can range from a few hundred to a few thousand dollars.

8. Will resetting the OBDII code P0AA6 in my Honda make the issue go away?

Resetting the code may temporarily turn off the check engine light, but if the underlying high voltage short circuit issue is not addressed, the code is likely to reappear.

9. Can extreme weather conditions contribute to the occurrence of the high voltage short circuit leading to the OBDII code P0AA6 in a Honda?

Extreme temperatures or environmental conditions can sometimes exacerbate existing electrical issues in the hybrid system, potentially leading to a high voltage short circuit.

10. How often should I have the high voltage components of my Honda's hybrid system inspected to prevent the occurrence of the OBDII code P0AA6?

Regular maintenance and inspections, as recommended by the manufacturer, can help prevent issues like high voltage short circuits and the associated OBDII trouble codes.