Operation CHARM: Car repair manuals for everyone.

Test L: LFC 19/DTC B1916 - Air Bag Driver Circuit Short to Battery

PINPOINT TEST L: LFC 19/DTC B1916 - AIR BAG DRIVER CIRCUIT SHORT TO BATTERY


L1-L3:






L3-L4:






L5-L7:






Normal Operation
The restraints control module (RCM) checks for driver air bag circuit shorts to battery or ignition by monitoring the voltage of circuit 614 (GY/OG) and 615 (GY/WH) at pins 3 and 4. If the RCM detects a short to battery or ignition on either of these pins, it will store a diagnostic trouble code (DTC) B1916 in memory and flash lamp fault code (LFC) 19 (or higher priority code if one exists) on the air bag warning indicator.

Possible Causes
A driver air bag circuit short to battery or ignition could be caused by:
- faulted wiring, terminals or connectors.
- a faulted clockspring.
- a faulted RCM.