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)
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.