P0AA8 Possible Causes
- Hybrid battery junction block
- Faulty intelligent battery unit
- Defective HV battery
- Inverter with converter
What Does It Mean?
How to Fix P0AA8 Code
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.
P0AA8 Possible Symptoms
Check engine light illuminated (or service engine soon warning light)
P0AA8 Meaning
The power management control ECU monitors the intelligent battery unit and detects isolation malfunctions in the high voltage system.