Test Aa: Right Side Air Bag Circuit Resistance Low (DTC B1999): Description
WARNING: This page is about a different car, the 2002 Lincoln Navigator and 2002 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
Restraints Control Module (RCM) monitors resistance of right side air bag module circuit loop and air bag igniter at RCM connector C2004 terminals No. 5 (White/Yellow wire) and No. 6 (Brown/Yellow wire). If RCM detects resistance less than 1.4 ohms, it will store Diagnostic Trouble Code (DTC) B1999 in memory and flash Code 37 on AIR BAG warning light.