B1413

DTC B1413 Evaporator Temperature Sensor Circuit

DESCRIPTION

DTC Detection Condition:

The evaporator temperature sensor is installed on the evaporator in the A/C unit. It detects the temperature of the cooled air that has passed through the evaporator and controls the air conditioning. Then it sends appropriate signals to the A/C amplifier assembly. The resistance of the evaporator temperature sensor changes in accordance with the temperature of the cooled air that has passed through the evaporator. As the temperature decreases, the resistance increases. As the temperature increases, the resistance decreases.

The A/C amplifier assembly applies voltage (5 V) to the evaporator temperature sensor and reads voltage changes as the resistance of the evaporator temperature sensor changes. This sensor is used for frost prevention.

Wiring Diagram:

Step 1(continued)-2:

Step 2(continued)-3:

INSPECTION PROCEDURE