B2431 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B2431 – Transponder Programming Failed


B2431 Possible Symptoms


Engine Light ON (or Service Engine Soon Warning Light)


B2431 Possible Causes


Faulty Transponder,Transponder harness is open or shorted,Transponder circuit poor electrical connection


B2431 Description


The Body Control Module (BCM) monitors the Transponder. The BCM sets the OBDII code when the Transponder is not to factory specifications.