P0AA6

A model year appears here because the code is named in its record, not because every one of these vehicles sets it. Counts are mentions in the federal files, not failure rates — nobody publishes the denominator.

Owners’ own words, one per nameplate, scrubbed of anything identifying. These are unverified reports filed with NHTSA — they are what was said, not a finding that it was true.

Service bulletins and campaigns whose filed summary names P0AA6. Quoting the document number at a service desk is often the fastest route to a diagnosis someone has already written down.

• TSB 26-2167
  2026-04-14 · Unknown Or Other
• 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 one of the following conditions:  Illuminated malfunction indicator lamp (MIL) and/or illuminated powertrain malfunction (wrench) indicator with DTCs P0711, P0A2B, P0A2D, P0A2C, P071
• SA-018-25
  2025-03-25 · Electrical System
• Important Note: This Service alert is intended as an early notification for upcoming software releases. Please refer to the latest dealer communications and MGSS for updated information. CX-90 MHEV Battery: Mazda is currently experiencing many backorders on MHEV Batteries (K6Y8-67-ZBXD). The issue causing most of the concerns is a cell imbalance inside the MHEV battery, which sets DTC P0DAB. The r
• 7325C Dealer Letter Emissions
  2025-03-20 · Engine
• 7325C - EMISSION RECALL - 2024-2025 CX-90 AND 2025 CX-70 PHEV ONLY - HYBRID SYSTEM WARNING LIGHT MAY TURN ON. Mazda Motor Corporation has decided to conduct an Emission Recall on certain 2024-2025 CX-90 and 2025 CX-70 PHEV vehicles. Please see the description, model, year, and VIN range below for all vehicles in this campaign. There are 38,812 vehicles affected by this concern in the U.S. and U.S.
• 07-006-24
  2024-11-23 · Unknown Or Other
• 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 insulation malfunction: Decrease in vehicle insulation resistance) stored in memory. This may be caused by an internal meltdown of the water heater. To eliminate this concern, the water h
• NTB23-024A
  2024-05-11 · Electrical System
• VEHICLE WILL NOT START AND DTCS P31E7 AND P0AA6 STORED IN EV/HEV CONTROL MODULE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
• NTB23-024
  2023-03-14 · Electrical System
• VEHICLE WILL NOT START AND DTCS P31E7 AND P0AA6 STORED IN EV/HEV CONTROL MODULE IF YOU CONFIRM The vehicle does not start, AND DTCs P31E7 (RESTART INHIBITION) and P0AA6 (HV BATTERY VOLTAGE SYSTEM ISOLATION) are stored in the EV/HEV Control Module. ACTION Follow the SERVICE PROCEDURE in this bulletin to: 1. Perform ESM diagnosis for DTCs P31E7 or P0AA6 to determine if a Li-Ion battery m

A stored code names the test that failed, never the part that caused it. It is the starting point of a diagnosis, not its conclusion — the same code has several possible causes and the cheap one is not always right.