Description

The No. 1 cooler thermistor (evaporator temperature sensor) is installed on the evaporator in the air conditioner unit to detect the temperature of the cooled air that has passed through the evaporator and to control the air conditioner. It sends signals to the air conditioning amplifier, which change in accordance with the resistance of the No. 1 cooler thermistor (evaporator temperature sensor). As the temperature decreases, the resistance increases. As the temperature increases, the resistance decreases. The air conditioning amplifier applies a voltage (5V) to the No. 1 cooler thermistor (evaporator temperature sensor) and reads voltage changes as changes in the resistance of the evaporator temperature sensor. This sensor is used for frost prevention.

DTC No.

DTC Detection Condition

Trouble Area

B1413/13

Open or short in evaporator temperature sensor circuit

• No. 1 cooler thermistor (evaporator temperature sensor)

• Harness and connector between No. 1 cooler thermistor (evaporator temperature sensor) and air conditioning amplifier

• Air conditioning amplifier

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