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.