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Test Y: LFC 37/DTC B1998 - Passenger Side Air Bag Circuit Resistance High

Y1 - Y2:






Y3:






Y4 - Y6:






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 greater than 3.6 ohms, the RCM will store Diagnostic Trouble Code (DTC) B1998 and flash Lamp Fault Code (LFC) 37.

Possible Causes
A high 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.