B1423

DTC B1423/23 Pressure sensor circuit

DESCRIPTION

DTC Detection Condition:

This DTC is output when the refrigerant pressure is either extremely low (0.19 Mpa [2.0 kgf/sq.cm, 28 psi] or less) or extremely high (3.14 Mpa [32.0 kgf/sq.cm 455 psi] or more). The pressure sensor which is installed on the pipe of the high pressure side detects the refrigerant pressure and sends a refrigerant pressure signal to the air conditioning amplifier. The air conditioning amplifier determines the pressure from the signals in accordance with the sensor characteristics and controls the compressor.

Wiring Diagram:

Step 1-2:

Step 2(Continued):

Step 3:

Step 4:

Step 5:

INSPECTION PROCEDURE