DTC B1620/21: Driver Side - Side Airbag Sensor Malfunction: Description

The side airbag sensor LH consists of the safing sensor, the diagnostic circuit, the lateral deceleration sensor, etc.

If the center airbag sensor assembly receives signals from the lateral deceleration sensor, it determines whether the SRS should be activated.

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