B142A Code: Meaning, Causes, and Symptoms | OBD2 Codes

B142A – Ignition Voltage


B142A Possible Symptoms


Air Bag Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)


B142A Possible Causes


Faulty Air Bag Diagnosis Sensor Unit,Air Bag Diagnosis Sensor Unit harness is open or shorted,Air Bag Diagnosis Sensor Unit circuit poor electrical connection


B142A Description


Ignition voltage is supplied to the air bag diagnosis sensor unit when the ignition is in the ON position. The air bag diagnosis sensor unit will monitor for low or high ignition voltage.