FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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M: LFC 34/DTC B1934 - Driver Air Bag Circuit Resistance Low

Normal Operation
The air bag Electronic Crash Sensor (ECS) module monitors the resistance of the driver air bag ignitor by measuring the resistance between Pins 1 and 15. If the ECS detects low resistance between these pins, it will store a Diagnostic Trouble Code (DTC) B1934 in memory and flash a Lamp Fault Code (LFC) 34 (or higher priority code if one exists) on the air bag indicator.

Possible Causes
Driver air bag low resistance could be caused by:
- a short in the air bag sliding contact windings.
- a short in the wiring harness
- a low resistance in the driver air bag module.

Pinpoint Test Steps:

M1-M6: