What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P0AA6:00High voltage insulation malfunction: Decrease in vehicle insulation resistanceP0AA6:00High voltage insulation malfunction: Decrease in vehicle insulation resistance OWNER NOTIFICATION Mazda will notify all U.SP0AA6-00Hybrid Battery Voltage System Isolation FaultP0AA6Hybrid Battery Voltage System Isolation FaultView all · Manufacturer wording →
Manufacturer communications
56Original wording in English
HYUNDAI
Reported code forms P0AA600
Some IONIQ 9 (ME1A EV) vehicles may illuminate a MIL warning light with DTC P0AA600 and/or P1AA800 with limited charging capabilities. This bulletin provides instructions to replace the Battery System Assembly (BSA) if…
FORD
Reported code forms P0AA6
This article supersedes TSB 25-2385. Reason for update: update the TSB Issue indicating the modules where are stored the DTCs P1A10 and P0AA6. Some of the vehicles listed in the Model statement above exhibit at least…
MAZDA
Reported code forms P0AA6:00
Some customers may complain that the heater does not work properly and that a warning about a hybrid abnormality appears on the Instrument Cluster. Upon inspection, the vehicle may have DTC P0AA6:00 (High voltage…
FORD
Reported code forms P0AA6
Some of the vehicles listed in the Model statement above exhibit at least one of the following conditions: Illuminated malfunction indicator lamp (MIL) and/or illuminated powertrain malfunction (wrench) indicator with…
MAZDA
Reported code forms P0AA6:00
SSPD9 – Adding coverage for Towing Subject: Notification of Warranty Extension Program - Special Service Program (SSP) D9 2024 CX-90 and 2025 CX-70, SKYACTIV-G 2.5 PHEV – Water Heater Malfunction Mazda Motor Corporation…
MAZDA
Reported code forms P0AA6:00
SSPD9 August 25, 2025 – Adding coverage for Towing Subject: Notification of Warranty Extension Program - Special Service Program (SSP) D9 2024 CX-90 and 2025 CX-70, SKYACTIV-G 2.5 PHEV – Water Heater Malfunction Mazda…
Check vehicle applicability
82A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Audi | A3 CABRIOLET | 2018 |
| Audi | A3 CABRIOLET | 2017 |
| Audi | A3 CABRIOLET | 2016 |
| Audi | A3 CABRIOLET | 2015 |
| Audi | A3 SPORTBACK E-TRON | 2017 |
| Audi | E-TRON | 2023 |
| Audi | E-TRON | 2022 |
| Audi | E-TRON | 2021 |
| Audi | E-TRON | 2019 |
| Audi | E-TRON SPORTBACK | 2023 |
| Audi | E-TRON SPORTBACK | 2022 |
| Audi | E-TRON SPORTBACK | 2021 |
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.