What causes B1422 on a Toyota?

Failed compressor lock sensor Open or short in the compressor lock sensor circuit Loose or corroded compressor connector Damaged sensor harness Low refrigerant charge or a seized compressor

How do I fix B1422 on a Toyota?

Confirm the code and read freeze frame data Check the A/C refrigerant charge and compressor drive belt Inspect and reseat the compressor lock sensor connector Test the compressor lock sensor circuit and signal Replace the compressor lock sensor only after tests fail

B1422 Compressor lock sensor circuit fault. The A/C amplifier reads a compressor speed ratio that is too low

Q: What does B1422 mean on a Toyota?

B1422. Compressor lock sensor circuit fault. The A/C amplifier reads a compressor speed ratio that is too low. 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 B1422 mean on a Toyota?

B1422. Compressor lock sensor circuit fault. The A/C amplifier reads a compressor speed ratio that is too low. This Toyota-enhanced code applies to Toyota, Lexus and Scion models that use this code.

Common causes of B1422

Failed compressor lock sensor
Open or short in the compressor lock sensor circuit
Loose or corroded compressor connector
Damaged sensor harness
Low refrigerant charge or a seized compressor

How to fix B1422

Confirm the code and read freeze frame data
Check the A/C refrigerant charge and compressor drive belt
Inspect and reseat the compressor lock sensor connector
Test the compressor lock sensor circuit and signal
Replace the compressor lock sensor only after tests fail