X: LFC 36/DTC B1994 - Driver Side Air Bag Ckt Resistance High

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.

Pinpoint Test Steps:

X1:

X2 - X3:

X4 - X5:

X6 - X7:

X8: