B1584 Code: Meaning, Causes, and Symptoms | OBD2 Codes
B1584 – Dim Panel Decrease Input Circuit Open
B1584 Possible Symptoms
Engine Light ON (or Service Engine Soon Warning Light)
B1584 Possible Causes
Faulty Dim Panel Switch,Dim Panel Switch harness is open or shorted,Dim Panel Switch circuit poor electrical connection,Faulty Body Control Module (BCM)
The Body Control Module (BCM) monitors the Dim Panel Switch. The BCM sets the OBDII code when the Dim Panel Switch is not to factory specifications.