Air Bag Control Unit
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2001 BMW Z3, 2001 BMW M3, 2001 BMW M Roadster, 2001 BMW M Coupe, and 2001 BMW 330xi. However, it is still accessible from the selected car via links, so may be relevant.
The air bag control unit is located under center of rear seat (3 Series and M3) or under center console (M coupe and roadster and Z3 coupe and roadster). Air bag control unit contains an internal safety sensor. If air bag control unit safety sensor senses an impact, it applies voltage to the air bags. The air bag control unit also features a self-diagnostic system that monitors the air bag system for faults. If a fault is detected, a code sets in air bag control unit memory.