P0A02

L110F HYBRID VEHICLE CONTROL: HYBRID CONTROL SYSTEM: P0A02-719,P0A03-720: Motor Electronics Coolant Temperature Sensor Circuit Low
P0A03-720 - Motor Electronics Coolant Temperature Sensor Circuit High

DESCRIPTION

The hybrid vehicle control ECU detects the HV coolant temperature using the coolant temperature sensor built into the inverter with converter assembly. The inverter cooling system is the same as that for MG2 and MG1, and operates independently of the engine cooling system. The hybrid vehicle control ECU uses signals from the coolant temperature sensor to check the effectiveness of the inverter cooling system. If necessary, the hybrid vehicle control ECU will control the HV system output to help prevent overheating. The inverter with converter assembly detects malfunctions in the HV coolant temperature sensor and its wiring.





INSPECTION PROCEDURE

PROCEDURE

1. REPLACE INVERTER WITH CONVERTER ASSEMBLY

(a) Replace the inverter with converter assembly Installation.

HINT
The HV coolant temperature sensor is not available separately. If it requires replacement, replace the inverter with converter assembly.

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