Test C: Driver Air Bag Circuit Fault (DTC B1915): Description
WARNING: This page is about a different car, the 2003 Ford Econoline. However, it is still accessible from the selected car via links, so may be relevant.
Electronic Crash Sensor (ECS) module monitors voltage on ECS module connector terminals No. 1 (circuit No. 614, Gray/Orange wire) and No. 15 (circuit No. 615, Gray/White wire). If ECS module detects short to ground or battery voltage at either terminal, it will store Diagnostic Trouble Code (DTC) B1915 in memory and flash Code 15 on AIR BAG warning light.