Test T: LFC 33/DTC B1933 - Pass. Air Bag Squib 1 Circuit Open

T1:

T1 - T2:

T2 - T3:

T4 - T5:

Normal Operation
The Restraints Control Module (RCM) monitors the passenger air bag squib 1 circuit loop at RCM C310a pins 5 and 6, circuits 607 (LB/OG) and 616 (PK/BK). If the RCM detects a high resistance (greater than 4.6 ohms), it will store Diagnostic Trouble Code (DTC) B1933 in memory and flash Lamp Fault Code (LFC) 33 (or higher priority code if one exists) on the air bag indicator.

Possible Causes
A passenger air bag squib 1 circuit open or high resistance can be caused by:
^ an open or high resistance on circuits 607 (LB/OG) or 616 (PK/BK).
^ a passenger air bag module internal fault.
^ an RCM internal fault.