Description

This DTC is output when the refrigerant pressure is either extremely low (0.19 Mpa [2.0 kgf/cm2, 28 psi] or less) or extremely high (3.14 Mpa [32.0 kgf/cm2, 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.

DTC No.

DTC Detection Condition

Trouble Area

B1423/23

Open or short in pressure sensor circuit

• Air conditioning pressure sensor

• Harness and connector between air conditioning pressure sensor and air conditioning amplifier

• Air conditioning amplifier

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