DTC P3222-313: Generator Inverter Temperature Sensor Circuit High / Low; DTC P3223-312: Generator Inverter Temperature Sensor Circuit High: Description
- The MG ECU located in the inverter with converter assembly uses a temperature sensor that is built into the inverter with converter assembly to detect the generator inverter temperature. The inverter cooling system is the same as that for MG2 and MG1, and it operates independently of the engine cooling system. The characteristics of the generator inverter temperature sensor are the same as those of the boost converter temperature sensor. The MG ECU uses the signal from the generator inverter temperature sensor to check the effectiveness of the inverter cooling system. If necessary, the MG ECU will limit inverter output to prevent inverter overheating. The ECU also detects malfunctions in the wiring of the generator inverter temperature sensor, as well as in the sensor.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P3222 | 313 | Open or GND short in generator inverter temperature sensor circuit | Inverter with converter assembly |
| P3223 | 312 | Short to +B in generator inverter temperature sensor circuit | Inverter with converter assembly |