B1623 Code: Meaning, Causes, and Symptoms | OBD2 Codes
B1623 – Lamp Keypad Output Circuit Failure
B1623 Possible Symptoms
Engine Light ON (or Service Engine Soon Warning Light)
B1623 Possible Causes
Faulty Lamp Keypad,Lamp Keypad harness is open or shorted,Lamp Keypad circuit poor electrical connection,Faulty Body Control Module (BCM)
The Body Control Module (BCM) monitors the Lamp Keypad. The BCM sets the OBDII code when the Lamp Keypad is not to factory specifications.