B1422 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1422 – Compressor Lock Sensor Circuit


B1422 Possible Symptoms


Engine Light ON (or Service Engine Soon Warning Light)


B1422 Possible Causes


Faulty Compressor Lock Sensor,Compressor Lock Sensor harness is open or shorted,Compressor Lock Sensor circuit poor electrical connection,Faulty Compressor Assembly,Faulty Air Conditioning Amplifier


B1422 Description


This sensor sends 1 pulse per engine revolution to the Air Conditioning Amplifier. If the ratio of the compressor speed divided by the engine speed is smaller than a predetermined value, the Air Conditioning Amplifier turns the compressor off, and the indicator blinks at approximately 1 second intervals.