Test Ac: Left-Side Air Bag Circuit Short To Ground (DTC B1993): Description

RCM monitors resistance to ground at connector C423, terminals No. 15 (Green/Black wire) and No. 16 (Black/Green wire). If RCM detects resistance less than 1000 ohms, it will store DTC B1993 in memory and flash Code 5 on AIR BAG warning light.