Engine-Codes - Toyota - P0AA6 TOYOTA

P0AA6 TOYOTA - Hybrid Battery Voltage System Isolation Fault

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

P0AA6 TOYOTA Possible Causes

  • Hybrid battery junction block
  • Faulty Battery Smart Unit
  • Faulty HV Battery
  • Inverter With Converter Assembly

How is the P0AA6 TOYOTA code repair?

Start by checking 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's pins.

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

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What is the cost to diagnose the P0AA6 TOYOTA code

Labor: 1.0

The cost to diagnose the P0AA6 TOYOTA code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
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Possible Symptoms

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

P0AA6 TOYOTA Meaning

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.

More Information

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