B1423

DTC B1423

Circuit Description

The pressure sensor is installed on the high pressure line to detect refrigerant pressure, outputs a refrigerant pressure signal to the A/C amplifier. The A/C amplifier converts this signal to pressure according to the sensor characteristics to control the compressor. When refrigerant pressure on the high pressure side is extremely low 0.19 Mpa (2.0 kgf/cm(2), (28 psi)) or extremely high 3.14 Mpa (32.0 kgf/cm(2), (455 psi)) or more, this DTC will set.

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC B1423 Pressure Sensor Circuit

Conditions for Running the DTC

This DTC shall run when the engine is running.

Conditions for Setting the DTC

* When refrigerant pressure on the high pressure side is extremely low 0.19 MPa (2.0 kgf/cm(2), (28 psi)) or less, or extremely high 03.14 MPa (32.0 kgf/cm(2), (455 psi)) or more.
* Open or short in pressure sensor circuit.

Action Taken When the DTC Sets

The

Conditions for Clearing the DTC

The DTC will clear when conditions for setting the DTC have been repaired.