Pinpoint Test H: LFC 14/DTC B1921 - Air Bag Diagnostic Monitor Ground Circuit Open: Notes
WARNING: This page is about a different car, the 2009 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
Refer to appropriate SYSTEM WIRING DIAGRAMS , Supplemental Restraint System for schematic and connector information.
WARNING:
Always tighten the fasteners of the restraints control module (RCM) and impact sensor (if equipped) to the specified torque. Failure to do so may result in incorrect restraint system operation, which increases the risk of personal injury or death in a crash.
NOTE:
A resistance difference as low as 10 ohms may set this DTC.