B1423 TOYOTA, LEXUS, SCION: PRESSURE SENSOR CIRCUIT
POST UPDATED IN June, 2023
B1423 TOYOTA, LEXUS, SCION: PRESSURE SENSOR CIRCUIT
The Air conditioner pressure sensor is located in the high-pressure side pipe. It detects the refrigerant pressure and then sends signals indicating the pressure to the amplifier of the air conditioner system. The amplifier can determine the pressure of the signals with the information received by the amplifier, considering the characteristics of the sensor. As a result, it can control the compressor.
The OBDII fault code B1423 is stored when the A/C refrigerant pressure is excessively out of the allowable range.
The B1423 OBD2 diagnostic code is set for the following reasons:
To troubleshoot DTC B1423 OBDII, try this: