Engine-Codes - Toyota - P0AA6 Toyota

P0AA6 Toyota Code - Hybrid Battery Voltage System Isolation Fault

- Code Popularity: 46,597 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
ChatAC AutoCodes.com AI Chat

What are the Possible Causes of the DTC P0AA6 Toyota?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Hybrid battery junction block
  • Faulty Battery Smart Unit
  • Faulty HV Battery
  • Inverter With Converter Assembly

Code Tech Notes

Toyota Gen 2 Prius Article Diagnose P0AA6 Code:
Toyota Prius Code P0AA6

There is a Factory Service Bulletin for the 2004–2005 Toyota Prius:
2004–2005 Toyota Prius Factory Service Bulletin OBDII Code P0AA6






User Submitted Video

⚠ Does your Toyota have Safety Recalls? → Check here

How to Fix the DTC P0AA6 Toyota?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Search for P0AA6 Toyota Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P0AA6 Toyota code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the P0AA6 Toyota Code Mean?

The Power Management Control ECU monitors the Battery Smart Unit. The Diagnostic Trouble Code (DTC) will set when the Power Management Control ECU detects insulation malfunctions in the high-voltage system.

P0AA6 Toyota Code - Hybrid Battery Voltage System Isolation Fault

Need more Information on the Code?

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

Need Help with the Code?

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