B1412

DTC B1412/12 Ambient Temperature Sensor Circuit

DESCRIPTION

DTC Detection Condition:

The ambient temperature sensor is installed in the front part of the
condenser to detect the ambient temperature and control the air conditioner. The sensor is connected to the air conditioning amplifier and detects fluctuations in the ambient temperature. This data is used for controlling the room temperature. The sensor sends a signal to the air conditioning amplifier. The resistance of the ambient temperature sensor changes in accordance with the ambient temperature. As the temperature decreases the resistance increases. As the temperature increases the resistance decreases. The air conditioning amplifier applies a voltage (5 V) to the ambient temperature sensor and reads voltage changes as changes in the resistance of the ambient temperature sensor.

Wiring Diagram:

Step 1:

Step 1(Continued):

Step 2:

Step 3:

INSPECTION PROCEDURE