Engine-Codes - Generic - B1423

B1423 Code - Pressure Sensor Circuit

- Code Popularity: 13,242 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the Code B1423?

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

|How to Fix the B1423 Code?

Start by checking 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.

|What is the Cost to Diagnose the Code B1423?

Labor: 1.0

The cost to diagnose the B1423 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

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|What are Code B1423 Possible Symptoms?

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

|What Does the B1423 Code Mean?

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.

Pressure Sensor Circuit

|Need more Information on the B1423 Code?

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|Code B1423 Information for Specific Makes

|Need Help with the B1423 Code?

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