DTC P0A02: Motor Electronics Coolant Temperature Sensor Circuit Low: General Description

Electric Power Control Unit (EPCU) converts the main battery voltage (DC) into 3-phase AC voltage and supplies the voltage to the drive motor to control the motor torque when a drive motor control command is received from the VCU. The heat sink temperature sensor is installed inside of EPCU, and it monitors the temperature of heat sink to detect over temperature of MCU.