P3222
P3222-313, P3223-312Description
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 Logic
DTC Detection Logic
Diagnostic Procedure
Step 1-2:
