P0AA7 Possible Causes
- Hybrid battery junction block
- Faulty intelligent battery unit
- Defective HV battery
- Inverter with converter
What Does It Mean?
How to Fix Code P0AA7
Check the “possible causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
P0AA7 Possible Symptoms
Check engine light illuminated (or service engine soon warning light)
P0AA7 Meaning
The power management control ECU monitors the intelligent battery unit and detects isolation malfunctions in the high voltage system.