B1521 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1521 – Hood Switch Circuit Short To Battery


B1521 Possible Symptoms


Engine Light ON (or Service Engine Soon Warning Light)


B1521 Possible Causes


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


B1521 Description


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