Test Y

PINPOINT TEST Y: LFC 36/DTC B1993 - DRIVER SIDE AIR BAG CIRCUIT SHORTED TO GROUND

Test Y1:

Test Y2:

Test Y3-Y4:

Test Y5-Y6:

Normal Operation

WARNING: Do not disconnect the wire connector at the side air bag module. This is a permanent connection. Doing so may result in air bag accidental deployment, which may result in personal injury.

The restraints control module (RCM) monitors the resistance to ground at RCM C310b pins 2 and 3. If the resistance is less than 10,000 ohms at either pin, the RCM will interpret that as a ground short, store diagnostic trouble code (DTC) B1993 and flash lamp fault code (LFC) 36.

Possible Causes
A driver side air bag circuit short to ground can be caused by:
- grounded Wiring on circuit 30S-JA37 (RD/GN).
- damaged Wiring on circuit 31S-JA37 (BK/GN).
- ground short in the driver side air bag module.
- a faulted RCM.