Test O: Air Bag Secondary Warning Indicator Circuit Short To Battery Or Ignition (B1891): Description

RCM monitors its connection to instrument cluster at RCM connector terminal No. 26 (Black/Green wire). This connection is used to turn on and off signal a Light Emitting Diode (LED) if primary AIR BAG warning light is inoperative and another air bag system fault exists. If RCM detects a short to battery or ignition on connection to instrument cluster, it will store DTC B1891 in memory.