DTC B1620/21: Side Airbag Sensor RH Circuit Malfunction: Description

The side airbag sensor RH circuit consists of the center airbag sensor assembly, side airbag sensor RH and rear airbag sensor RH.

The side airbag sensor RH and rear airbag sensor RH detect impacts to the vehicle and send signals to the center airbag sensor assembly to determine if the airbag should be deployed.

DTC B1620/21 is recorded when a malfunction is detected in the side airbag sensor RH circuit.

DTC No.	DTC Detection Condition	Trouble Area
B1620/21	The center airbag sensor assembly receives a short circuit signal, an open circuit signal, a short circuit to ground signal or a short circuit to B+ signal in the side airbag sensor RH circuit for 2 seconds. Side airbag sensor RH malfunction Rear airbag sensor RH malfunction Center airbag sensor assembly malfunction	No. 2 floor wire Side airbag sensor RH Rear airbag sensor RH Center airbag sensor assembly