Air Bag Control Unit
WARNING: This page is about a different car, the 2001 BMW M5, 2001 BMW 540i, 2001 BMW 530i, and 2001 BMW 525i. However, it is still accessible from the selected car via links, so may be relevant.
The air bag control unit is located under center console, behind rear heater control panel. 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.