Test W: LFC 37/DTC B1998 - Passenger Side Air Bag Circuit Resistance Hi
W1:
W2:
W3 - W4:
W5:
W5 - W6:
Normal Operation
The Restraints Control Module (RCM) monitors the resistance of the passenger seat side air bag circuit loop and the air bag module igniter at RCM C301b 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 seat 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 seat side air bag module.
^ RCM is faulted.