DTC P0A93-346: Inverter Cooling System Performance [10/2014 - 10/2015]: Description
The inverter converts the high-voltage direct current of the HV battery into 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 monitors the inverter water pump assembly, cooling fan and cooling system, and detects malfunctions.
| *1 | Inverter Water Pump Assembly | *2 | Inverter Reserve Tank Assembly |
| *3 | Inverter with Converter Assembly | *4 | Radiator Assembly (HV) |
| *5 | Hybrid Vehicle Transaxle Assembly | - | - |
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A93 | 346 | Inverter cooling system (W/P) malfunction Inverter coolant temperature increases as well as the temperature of any inverter with converter assembly related parts increases. (1 trip detection logic) |
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