What causes B1423 on a Toyota?

Failed A/C pressure sensor Open or short in the pressure sensor circuit Loose or corroded pressure sensor connector Damaged sensor harness Low or overcharged refrigerant charge

How do I fix B1423 on a Toyota?

Confirm the code and read the A/C data list Check the refrigerant charge with manifold gauges Inspect and reseat the pressure sensor connector Test the pressure sensor circuit and signal Replace the pressure sensor only after tests fail

B1423 A/C pressure sensor circuit fault

Q: What does B1423 mean on a Toyota?

B1423. A/C pressure sensor circuit fault. Refrigerant pressure reads far below or above the normal range. Applies to Toyota, Lexus and Scion models that use this code.

Category: Body
Severity: Body Warning Light
Applies to: Toyota, Lexus and Scion models that use this code

What does B1423 mean on a Toyota?

B1423. A/C pressure sensor circuit fault. Refrigerant pressure reads far below or above the normal range. This Toyota-enhanced code applies to Toyota, Lexus and Scion models that use this code.

Common causes of B1423

Failed A/C pressure sensor
Open or short in the pressure sensor circuit
Loose or corroded pressure sensor connector
Damaged sensor harness
Low or overcharged refrigerant charge

How to fix B1423

Confirm the code and read the A/C data list
Check the refrigerant charge with manifold gauges
Inspect and reseat the pressure sensor connector
Test the pressure sensor circuit and signal
Replace the pressure sensor only after tests fail