B1558 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1558 – Ignition Run/Start Circuit Short To Ground


B1558 Possible Symptoms


Engine Light ON (or Service Engine Soon Warning Light)


B1558 Possible Causes


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


B1558 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.