Test R
PINPOINT TEST R: LFC 36/DTC B1994 - DRIVER SIDE AIR BAG CIRCUIT RESISTANCE HIGHTest R1:
Test R2-R3:
Test R4-R6:
Normal Operation
The Restraints Control Module (RCM) monitors the resistance of the driver side air bag circuit loop and the air bag module igniter at RCM C1 pins 2 and 3. If the resistance is greater than 3.6 ohms, the RCM will store Diagnostic Trouble Code (DTC) B1994 and flash Lamp Fault Code (LFC) 36.
Possible Causes
A high resistance on the driver side air bag circuit can be caused by:
^ damaged wiring on circuit 1257 (WH/LB).
^ damaged wiring on circuit 1258 (BN/LB).
^ damaged driver side air bag module.
^ damaged RCM.