DTC P0CEE: General Description
To control the temperature of power control unit (PCU) coolant, while monitoring the coolant temperature and the temperature of each part, the PCU drives the PCU electric coolant pump and sends a drive request to the radiator fan. Since the coolant temperature and the reactor temperature become nearly identical immediately after the engine is started when it is sufficiently cooled down, the motor control module in the PCU detects a malfunction and stores a DTC when the difference between the coolant temperature and the reactor temperature is equal to or more than the prescribed value continuously for the prescribed time or more.