E 420 (210.072) V8-4.2L (119.985) (1997)
Side Air Bag: Description and Operation
Side Airbag Sensor
Purpose
Model 210 Shown
The side airbag sensors (A53 and A54) are located on the crossmember below the left and right front seats. They register the lateral acceleration of the
vehicle during a side collision and cause the control module (N2/2) to trigger the sidebags.
Function
The side airbag sensors sense the acceleration acting in the lateral direction of the vehicle in the event of a side collision and initiate a logic check in the
ETR control module with airbag (N2/2). If the values coincide a triggering signal is sent to the side airbag squibs (R12/9 and R12/10).