Tests AE

PINPOINT TEST AE: LFC 37/DTC B1999 - PASSENGER SIDE AIR BAG CIRCUIT RESISTANCE LOW

Test AE1:

Test AE2:

Test AE3-AE4:

Test AE4-AE5:

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 of the passenger side air bag circuit loop and the air bag module igniter at RCM C310b pins 5 and 6. If the resistance is less than 3.6 ohms, the RCM will store diagnostic trouble code (DTC) B1999 and flash lamp fault code (LFC) 37.

Possible Causes
A low resistance on the passenger side air bag circuit can be caused by:
- damaged wiring on circuit 30S-JA38 (RD/BK).
- damaged wiring on circuit 31S-JA38 (BK/RD).
- damaged passenger side air bag module.
- a faulted RCM.
- damaged electrical connector shorting bar.
- damaged electrical connector camming beam.