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Test I: LFC 33/DTC B1933 - Passenger Air Bag Circuit Resistance Hi

I1:

I1 - I2:

I2 - I3:

I4 - I5:

Normal Operation
The Restraints Control Module (RCM) monitors the resistance of the passenger air bag ignitor by measuring the resistance between pins 6 and 7. If the RCM detects high resistance between these pins, it will store a Diagnostic Trouble Code (DTC) B1933 in memory and flash a Lamp Fault Code (LFC) 33 (or higher priority code if one exists) on the air bag indicator.

Possible Causes
A passenger air bag high resistance can be caused by:
^ a poor connection or corrosion in the passenger air bag module circuits.
^ an open circuit or high resistance in the wiring harness.
^ an open circuit or high resistance in the passenger air bag module.
^ an RCM internal concern.