P0AAA Possible Causes
- Hybrid battery junction block
- Faulty intelligent battery unit
- Defective HV battery
- Inverter with converter
What Does It Mean?
How to Fix P0AAA Code
Check the “possible causes” listed above. Visually inspect the related cable harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
P0AAA Possible Symptoms
Check engine light on (or service engine soon warning light)
P0AAA Meaning
The power management control ECU monitors the intelligent battery unit and detects isolation malfunctions in the high voltage system.