Test B: Air Bag Warning Light Circuit Open Or Short To Ground (DTC B1869): Description
WARNING: This page is about a different car, the 2004 Ford Econoline. However, it is still accessible from the selected car via links, so may be relevant.
During normal operation, the AIR BAG warning light will be continuously illuminated for 6 seconds after the ignition switch is placed in ON or START position and after 3 cycles of Light Flash Code (LFC), if a fault exists. Be sure to cycle ignition switch and look for a continuous AIR BAG warning light without LFC.
Restraints Control Module (RCM) monitors AIR BAG warning light for open and short to ground conditions. If RCM detects open or short to ground in AIR BAG warning light circuit, it will store DTC B1869 in memory. If RCM detects AIR BAG warning light failure in addition to another air bag system failure, the secondary air bag warning system will be activated.