Air Conditioning System (For Automatic Air Conditioning System)

DTC B1423/23 Pressure Sensor Circuit

DESCRIPTION

DTC Detection Condition:

This DTC is output when refrigerant pressure is extremely low (196 kPa (2.0 kgf/sq.cm, 28 psi) or less) or extremely high (3140 kPa (32.0 kgf/sq.cm, 455 psi) or more). The pressure switch, which is installed on the pipe of the high pressure side to detect refrigerant pressure, outputs a refrigerant pressure signal to the air conditioning amplifier.

The air conditioning amplifier controls the compressor according to the sensor characteristic.

HINT: Be sure to check the refrigerant volume first when this DTC is output because this DTC can also be output if there is no refrigerant in the system.

Wiring Diagram:

Step 1-2:

Step 2(Continued):

INSPECTION PROCEDURE

HINT: Be sure to check the refrigerant volume first when this DTC is output because this DTC can also be output if there is no refrigerant in the system.