B1555 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1555 – Ignition Run/Start Circuit Failure


B1555 Possible Symptoms


Engine Light ON (or Service Engine Soon Warning Light)


B1555 Possible Causes


Faulty Ignition Switch,Ignition Switch harness is open or shorted,Ignition Switch circuit poor electrical connection,Faulty Body Control Module (BCM)


B1555 Description


The Body Control Module (BCM) monitors the Ignition Switch. The BCM sets the OBDII code when the Ignition Switch is not to factory specifications.