B1423 - Pressure Sensor Circuit

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

B1423 Possible Causes

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

How do I fix code B1423

    Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Cost of diagnosing the B1423 code

    Labor: 1.0

    The cost of diagnosing the B1423 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

B1423 Possible Symptoms

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

B1423 Meaning

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 - Engine-Codes.com

B1423 More Information

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B1423 Information for specific makes

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