P0A03

HYBRID / BATTERY 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 HV coolant temperature using the coolant temperature sensor built into the inverter with converter assembly. 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 limit inverter output to help prevent inverter overheating. The hybrid vehicle control ECU also detects malfunctions in the sensor based on the HV coolant temperature sensor values. 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 Components.

NEXT -- COMPLETED