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Test H: LFC 15/DTC B1916 - Driver Air Bag CKT Short to Batt or Ign

H1 - H2:






H3 - H4:






H5 - H6:






Normal Operation
The Restraints Control Module (RCM) checks for driver air bag circuit shorts to battery or ignition by monitoring the voltage of circuit 30S-JA8 (RD/OG) and 31S-JA8 (BK/OG) 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 a Lamp Fault Code (LFC) 15 (or higher priority code if one exists) on the air bag indicator.

Possible Causes
A driver air bag circuit short to battery or ignition can be caused by:
^ a short to battery or ignition on circuit 30S-JA8 (RD/OG).
^ a short to battery or ignition on circuit 31S-JA8 (BK/OG).
^ a short to battery or ignition on the air bag sliding contact.
^ a short to battery or ignition on the driver air bag module.