System Operation Check
WARNING: This page is about a different car, the 2004 Mercury Monterey and 2004 Ford Freestar. However, it is still accessible from the selected car via links, so may be relevant.
- When checking air bag system operation (also known as prove out system), and upon completion of each diagnostic test, check for faults in air bag system. To check system, turn ignition switch to ON position. If AIR BAG warning light illuminates for 6 seconds and then goes out, air bag system is functioning properly and no faults exist.
- If a fault is detected in air bag system during initial system check, AIR BAG warning light will fail to light, remain lit continuously or flash a code sequence, indicating a fault in system. Flashing may not occur until about 30 seconds after ignition switch is turned to ON position. Count number of flashes. Number of flashes represents a code number used to diagnose air bag system. See DIAGNOSTICS .
- If AIR BAG warning light either fails to light or stays on continuously, go to DIAGNOSTIC SYMPTOMS . If a system fault exists and AIR BAG warning light fails to light, an audible tone will be heard, indicating AIR BAG warning light is out and service is required.