Section 74 (Air Bag Restraint Systems): Diagnostics
WARNING: This page is about a different car, the 2002 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.
For diagnostic trouble code information, see 1988-2002 AIR BAG TROUBLE CODES article. All air bag system diagnosis must be carried out using proprietary BMW DIS/MoDiC tester.