Test D: Driver-Side Air Bag Circuit Short To Ground (DTC B1887): Description
WARNING: This page is about a different car, the 2003 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
Restraints Control Module (RCM) checks driver-side air bag module circuit for shorts to ground by monitoring voltage at RCM harness connector terminals No. 3 (Gray/Orange wire) and No. 4 (Gray/White wire). If RCM detects short to ground on either terminal, it will store Diagnostic Trouble Code (DTC) B1887 in memory and flash Code 15 on AIR BAG warning light.