B1423 - Pressure Sensor Circuit

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
Comments  |  Add Comment

Possible causes

  • Faulty Pressure Sensor
  • Pressure Sensor harness is open or shorted
  • Pressure Sensor circuit poor electrical connection
  • Faulty Air Conditioning Amplifier

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

B1423 Description

This Diagnostic Trouble Code (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 air conditioning pressure sensor, which is installed on the pipe of the high-pressure side, detects the refrigerant pressure and sends refrigerant pressure signals 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 accordingly.
OBDII Code B1423 - Pressure Sensor Circuit - AutoCodes.com

B1423 Information for specific makes

Need more help?

Get the B1423 code diagnosed by a professional: Find a repair shop in your area

Related Information

B1423 Comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the B1423 code? Have you replaced any parts?
Any information is appreciated. Thanks
Top ⇧