B10F1 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B10F1 – Key In Switch Circuit Open


B10F1 Possible Symptoms


Engine Light ON (or Service Engine Soon Warning Light)


B10F1 Possible Causes


Faulty Key-in-ignition switch,Key-in-ignition switch harness is open or shorted,Key-in-ignition switch circuit poor electrical connection,Faulty Body Control Module (BCM),Faulty Instrument Panel Cluster (IPC)


B10F1 Description


The chime can sound all the time as a result of a key-in-ignition warning chime concern or a headlamps on warning chime concern. The OBDII code sets if the Body Control Module (BCM) detects an open on the key-in-ignition switch input circuit or if the BCM detects ignition START, RUN/START or RUN/ACC inputs without the key-in-ignition input.