B242D Code: Meaning, Causes, and Symptoms | OBD2 Codes

B242D – Passenger Seat Temperature Request Circuit


B242D Possible Symptoms


Engine Light ON (or Service Engine Soon Warning Light)


B242D Possible Causes


Faulty Seat Blower Assembly,Seat Blower Assembly harness is open or shorted,Seat Blower Assembly circuit poor electrical connection,Faulty Body Control Module (BCM)


B242D Description


When a heated or cooled seat switch is pressed, a LIN Bus message is sent to the Body Control Module (BCM) indicating the heated or cooled seat request. The BCM then sends a low side Pulse Width Modulation (PWM) signal through the heated/cooled seat mode signal circuit to the seat back and seat cushion blower assemblies for the appropriate seat.