B2402 Code: Meaning, Causes, and Symptoms | OBD2 Codes
B2402 – Audio CD/DJ Thermal Shutdown Fault
B2402 Possible Symptoms
Engine Light ON (or Service Engine Soon Warning Light)
B2402 Possible Causes
Faulty Audio Unit,Audio Unit harness is open or shorted,Audio Unit circuit poor electrical connection
The Body Control Module (BCM) monitors the Audio CD. The BCM sets the OBDII code when the Audio CD is not to factory specifications.