B1A3E Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1A3E – Siren/ITM Mismatch


B1A3E Possible Symptoms


Engine Light ON (or Service Engine Soon Warning Light)


B1A3E Possible Causes


Faulty Intrusion Transceiver Module (ITM),Intrusion Transceiver Module (ITM) harness is open or shorted,Intrusion Transceiver Module (ITM) circuit poor electrical connection


B1A3E Description


The OBDII codes set when the Intrusion Transceiver Module (ITM) loses battery voltage.