DTC P0A93-346: Inverter Cooling System Performance: Description
The inverter converts the high-voltage direct current of the HV battery into the alternating current for MG1 and MG2. The inverter generates heat during the conversion process. Therefore, the inverter is cooled by a special cooling system consisting of the inverter water pump assembly, the cooling fan, and a radiator. This cooling system is independent of the engine cooling system. The power management control ECU (HV CPU) monitors the electric water pump, cooling fan, and cooling system, and detects the following malfunctions.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A93 | 346 | Inverter cooling system malfunction (HV cooling malfunction) |
|