Normal Operation

WARNING: This page is about a different car, the 2009 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.

During normal operation, the air bag warning indicator will illuminate continuously for approximately 6 seconds and then go out after the ignition switch is placed in the ON or START position and no air bag fault exists. The air bag warning indicator will remain illuminated continuously after 5 cycles of a LFC, if a fault exists. Refer to Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) . Be sure to cycle the ignition switch and look for an approximate 6 second indicator prove-out without LFCs.

The restraints control module (RCM) will communicate DTCs to the scan tool through the data link connector (DLC). If the scan tool displays NO COMMUNICATION when retrieving continuous DTCs, refer to MODULE COMMUNICATIONS NETWORK to diagnose the no communication concern.

This pinpoint test is intended to diagnose the following:

Fuse
Wiring, terminals or connectors
Damaged ignition circuit
RCM disconnected from the vehicle harness
Loss of RCM signal ground
RCM
Instrument cluster (IC) module