Prius P0AA6 NON-RUNNER Fixed! 🔋 Full HV Battery Module Replacement & Rebalance (Gen 2 Diagnosis)

Fixing a Dead Toyota Prius (Generation 2) That Won't Go to Ready Mode! ​In this comprehensive repair video, we tackle a challenging non-running condition on a Toyota Prius Gen 2 (1.5L engine). The vehicle arrived completely dead, with the Hybrid High Voltage (HV) battery relays failing to close, preventing the car from entering "Ready" mode. ​🔎 The Diagnosis ​Upon scanning, we retrieved the critical fault code P0AA6: Hybrid Battery Voltage System Isolation Fault. A quick visual check and an in-depth insulation test confirmed our suspicions: we had a major internal issue within the HV battery pack. ​🛠️ The Repair Process ​We meticulously removed, disassembled, and tested the high voltage battery pack. We discovered several leaking and critically discharged modules that were causing the isolation fault. ​Watch as we take you through the entire process: ​Safe removal and opening of the HV battery case. ​Insulation testing procedures to pinpoint the leak. ​Identifying and replacing the faulty/leaking modules. ​Recharging and expertly re-balancing the entire HV battery pack to ensure peak performance and longevity. ​Reinstallation and the final check to confirm the P0AA6 fault is cleared and the vehicle is back in Ready mode! ​If you work on hybrids or own a Gen 2 Prius, this video is essential viewing! Like, Share, and Subscribe for more professional hybrid and automotive diagnostic content. Model & Engine #ToyotaPrius #PriusGen2 #1NZFXE #PriusHybrid Fault Codes #P0AA6 #IsolationFault #HybridWarning Repair #HybridBatteryRepair #HVBattery #BatteryRebalance #BatteryModuleReplacement #CarDiagnosis Problem State #NonRunner #DeadPrius #NoReadyMode #PriusFix General #MechanicLife #AutomotiveRepair #HighVoltage ⚠️ Very Strong Disclaimer (Crucial for HV Safety) ​⚠️ HIGH VOLTAGE SAFETY & LIABILITY DISCLAIMER ⚠️ ​This video is for informational and educational purposes only. The procedures shown involve working with DANGEROUS HIGH VOLTAGE (HV) systems that can be LETHAL if handled improperly. ​DO NOT attempt this repair without proper safety training, certified high-voltage personal protective equipment (PPE), specialized tools, and a thorough understanding of all OEM safety procedures. ​The team performing this work are certified and experienced HV technicians. ​Viewers attempt any repair demonstrated in this video at their OWN RISK. ​We assume no liability for injury, property damage, or equipment damage resulting from any attempt to perform the repairs or procedures shown in this video. Consult a professional, certified hybrid technician for all vehicle maintenance and repairs. Your safety is paramount.