B1531 Code: Meaning, Causes, and Symptoms | OBD2 Codes
B1531 – Memory 1 Switch Circuit Failure
B1531 Possible Symptoms
Engine Light ON (or Service Engine Soon Warning Light)
B1531 Possible Causes
Faulty Memory 1 Switch,Memory 1 Switch harness is open or shorted,Memory 1 Switch circuit poor electrical connection,Faulty Body Control Module (BCM)
The Body Control Module (BCM) monitors the Memory 1 Switch. The BCM sets the OBDII code when the Memory 1 Switch is not to factory specifications.