DTC P0A2C-247: Drive Motor "A" Temperature Sensor Circuit Low; DTC P0A2D-249: Drive Motor "A" Temperature Sensor Circuit High: Description

WARNING: This page is about a different variant/trim than selected.

The resistance of the thermistor built into the motor temperature sensor changes in accordance with changes in MG2 temperature. The lower the MG2 temperature, the more the thermistor resistance. Conversely, the more the temperature, the lower the resistance.

Fig 1: Identifying Temperature To Resistance Graph

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DTC No.	INF Code	DTC Detection Condition	Trouble Area
P0A2C	247	GND short in motor temperature sensor circuit	Wire harness or connector Hybrid vehicle control ECU Hybrid vehicle transaxle assembly (Motor temperature sensor)
P0A2D	249	Open or +B short in motor temperature sensor circuit	Wire harness or connector Hybrid vehicle control ECU Hybrid vehicle transaxle assembly (Motor temperature sensor)

HINT:

After confirming that DTC P0A2C-247 or P0A2D-249 is output, use the Techstream to check "Motor Temp No1" in the HV ECU data list.

Displayed Temperature	Malfunction
-50°C (-58°F)	Open or +B short circuit
205°C (401°F)	GND short