Hybrid Battery Voltage Isolation Sensor Circuit
Table of contents
P0AA7 TOYOTA Possible Causes
- Hybrid battery junction block
- Faulty Battery Smart Unit
- Faulty HV Battery
- Inverter With Converter Assembly
How do I fix code P0AA7 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’s pins.
Cost of diagnosing the P0AA7 TOYOTA code
The cost of diagnosing the P0AA7 TOYOTA code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0AA7 TOYOTA Description
The power management control ECU monitors the battery smart unit and detects insulation malfunctions in the high-voltage system.