DTC B1620/21: Side Airbag Sensor RH Circuit Malfunction; DTC B1622/81: Lost communication with Side Airbag Sensor RH: Description

The side collision sensor RH circuit (to determine deployment of the front seat airbag assembly RH, front seat outer belt assembly RH, rear window curtain shield airbag assembly and curtain shield airbag assembly RH) is composed of the airbag ECU assembly, door side airbag sensor RH and side airbag sensor assembly RH.

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

These DTCs are stored when a malfunction is detected in the side airbag sensor assembly RH circuit.