Circuit Description

The HV ECU checks the inverter temperature and controls the load limitation in order to prevent the inverter from overheating. Also, it detects the abnormality of the line connection of the inverter temperature sensor and the malfunction of the sensor itself. DTC P3125 - Information code 274, 275, 276, 277

INF. Code.

Detecting Condition

Trouble Area


Open or +B short in motor inverter temperature sensor

• Converter & inverter assembly

• Wire harness


GND short in motor inverter temperature sensor


Motor inverter temperature sensor malfunction


Motor inverter temperature sensor performance problem

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