Normal Operation
WARNING: This page is about a different car, the 2007 Lincoln MKX and 2007 Ford Edge. 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 6 seconds after the ignition switch is placed in the RUN or ON position. Be sure to cycle the ignition switch and look for a 6-second indicator prove-out without diagnostic trouble codes (DTCs). The restraints control module (RCM) will communicate to the instrument cluster module to turn the air bag warning indicator ON or OFF via the high-speed controller area network (HS-CAN). The RCM will also communicate over the HS-CAN DTCs to the scan tool through the data link connector (DLC).
This pinpoint test is intended to diagnose the following:
- A DTC
- Damaged wiring, terminals or connectors
- Instrument cluster module
- Faulted RCM