B1845 Code: Meaning, Causes, and Symptoms | OBD2 Codes
B1845 – Ignition Tamper Circuit Failure
B1845 Possible Symptoms
Engine Light ON (or Service Engine Soon Warning Light)
B1845 Possible Causes
Faulty Ignition Switch,Ignition Switch harness is open or shorted,Ignition Switch circuit poor electrical connection,Faulty Body Control Module (BCM)
The Body Control Module (BCM) monitors the Ignition Switch. The BCM sets the OBDII code when the Ignition Switch is not to factory specifications.