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