P0A02
P0A02-719, P0A03-720Description
The hybrid vehicle control ECU detects the inverter coolant temperature through the coolant temperature sensor built into the inverter with converter assembly. The inverter cooling system is the same as that for MG2 or MG1, and operates independently of the engine cooling system. The hybrid vehicle control ECU controls the inverter cooling system to prevent overheating based on signals from the inverter coolant temperature sensor. The hybrid vehicle control ECU also monitors inverter cooling system operation and detects malfunctions in the inverter coolant temperature sensor and the circuit.
DTC Logic
DTC Detection Logic
Diagnostic Procedure
Step 1-2:
