Test W

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

Test W1-W2:

Test W3-W6:

Normal Operation
The restraints control module (RCM) monitors the resistance of the passenger side air bag circuit loop and the air bag module igniter at RCM C1 pins 5 and 6. If the resistance is less than 0.7 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 1259 (WH/YE).
- damaged wiring on circuit 1260 (BN/YE).
- damaged passenger side air bag module.
- damaged RCM.
- damaged shorting bar or camming beam in C2041b or C337.