Test G: LFC 16/DTC B1888- Passenger Air Bag Circuit Shorted to Gnd.
G1:
G2:
G3 - G4:
G5 - G6:
Normal Operation
The Restraints Control Module (RCM) checks for passenger air bag circuit shorts to ground by monitoring the voltage of circuits 607 (LB/OG) and 616 (PK/BK) at pins 6 and 7. If the RCM detects a short to ground on either of these pins, it will store a Diagnostic Trouble Code (DTC) B1888 in memory and flash a Lamp Fault Code (LFC) 16 (or higher priority code if one exists) on the air bag indicator.
Possible Causes
A passenger air bag circuit short to ground could be caused by:
^ wiring, terminals, or connectors.
^ a short to ground on the passenger air bag module.
^ an RCM internal concern.