Test E: Left Front Belt & Buckle PRETENSIONER Circuit Short To Ground (DTC B1876): 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 connector terminals No. 24 (circuit No. 1079, Light Green/Red wire) and No. 25 (circuit No. 1080, Light Green/Black wire). If ECS module detects short to ground on either terminal, it will store Diagnostic Trouble Code (DTC) B1876 in memory and flash Code 17 on Air Bag warning light.