B1749 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1749 – Park/Neutral Switch Circuit Failure


B1749 Possible Symptoms


Engine Light ON (or Service Engine Soon Warning Light)


B1749 Possible Causes


Faulty Park/Neutral Switch,Park/Neutral Switch harness is open or shorted,Park/Neutral Switch circuit poor electrical connection,Faulty Body Control Module (BCM)


B1749 Description


The Body Control Module (BCM) monitors the Park/Neutral Switch. The BCM sets the OBDII code when the Park/Neutral Switch is not to factory specifications.