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Home >> Mercury >> 2009 >> Mariner Base, 2.5 7, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 142 (Supplemental Restraint System) >> Diagnostic Tests >> Air Bag And Safety Belt PRETENSIONER Supplemental Restraint System (SRS) >> Pinpoint Tests >> Pinpoint Test A: The Air Bag Warning Indicator is Illuminated Continuously - RCM Disconnected Or Inoperative, Loss Of Battery Feed Or Loss Of Signal Ground >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2009 Mercury Grand Marquis and 2009 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.

During normal operation, the Restraints Control Module (RCM) will illuminate the air bag warning indicator continuously for approximately 6 seconds and then go out after the ignition is placed in the ON or START position and no Supplemental Restraint System (SRS) faults exist. The air bag warning indicator will remain illuminated continuously after 3 cycles of a Lamp Fault Code (LFC), if a fault exists. Refer to Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) . Be sure to cycle the ignition and look for an approximate 6-second indicator prove-out without LFCs.

The RCM will communicate DTCs to the scan tool through the Data Link Connector (DLC). If the scan tool displays NO COMMUNICATION when retrieving DTCs, refer to MODULE COMMUNICATIONS NETWORK article to diagnose the no communication concern.

This pinpoint test is intended to diagnose the following:

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