CUSTOMER CONCERN Vehicle will not start after collision damage caused the hybrid transmission to lose fluid; DTCs P0A78, P0613, and P0A2A are stored. CAUSE Running low on Mercon LV overheated and damaged the transmission's internal hybrid drive motor; the system attempted Ready mode and immediately reset the same transmission-related DTCs. CORRECTION Remove and replace the automatic hybrid transmission assembly, fill with Mercon LV, clear DTCs P0A78, P0613, and P0A2A, and ver

CUSTOMER CONCERN The IMA warning is active and DTCs P0A78 and P1440 are stored for an MPI internal/output-circuit fault. CAUSE MPI power and ground circuit checks passed, confirming an internal failure of the Motor Power Inverter module. CORRECTION Remove and replace the Motor Power Inverter module, clear P0A78 and P1440, and verify IMA-system operation.

CUSTOMER CONCERN The vehicle stalled after driving, will not restart or enter READY mode, and displays Service Hybrid System and VSC warnings with DTC P0A78 stored. CAUSE Hybrid-system testing and the applicable service bulletin confirmed an internal power-inverter failure. CORRECTION Remove and replace the hybrid power inverter assembly.