ACM (Airbag Control Module)
WARNING: This page is about a different car, the 2005 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.
The control module has the capacity to activate 16 detonation circuits and contains two integrated accelerometers. The primary (1) accelerometer measures acceleration and deceleration forces longitudinally and laterally. The secondary (2) accelerometer measures longitudinal acceleration forces only.
CV: The control module has a roll-over function which means it can measure angle changes. Angle changes are registered through an extra sensor in the control module.
Four side impact sensors send information to the control module regarding side impact intensity and diagnostics. The side impact sensors deploy a side airbag and an inflatable curtain on the side registering an impact.