B1933

LFC 33 / DTC B1933 (Steps 1 - 4):

LFC 33 / DTC B1933 (Step 5):

Normal Operation
The air bag diagnostic monitor monitors the resistance of the passenger air bag ignitor by measuring the resistance between pins 6 and 7. If the diagnostic monitor 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-side air bag high resistance could be caused by:
- A poor connection or corrosion in the passenger-side air bag module circuits.
- An open circuit or high resistance in the wiring harness.
- An open circuit or high resistance in the passenger-side air bag module.
- Air bag diagnostic monitor internal concern.