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Home >> Lincoln >> 2009 >> MKX FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 2148 (Information Center - Instrumentation, Message Center And Warning Chimes) >> Diagnosis And Testing >> Instrumentation, Message Center and Warning Chimes >> Pinpoint Tests >> Pinpoint Test AO: The Safety Belt/Belt-Minder® Warning Chime Is Inoperative >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2010 Lincoln MKX and 2010 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.

The Instrument Cluster (IC) receives the safety belt and Belt-Minder® requests from the Restraints Control Module (RCM) over the High Speed Controller Area Network (HS-CAN). The safety belt warning chime sounds for approximately 6 seconds when the driver safety belt is not fastened and the ignition lock cylinder is turned from the OFF/LOCK or ACC position to the ON or START position.

The Belt-Minder® feature supplements the safety belt warning function and is enabled after the safety belt warning is complete. The Belt-Minder® simultaneously sounds the chime and illuminates the safety belt warning lamp in the IC  once the vehicle speed has exceeded 4.8 km/h (3 mph), and remains active for 5 minutes from the time it is started.

There are 2 Belt-Minder® strategies that are used and implemented by the IC  as commanded by the RCM  . The 2 strategies are designed to provide an increased intensity level of the chime. Belt-Minder® A provides 6 one-second sequences of 0.5-second on/0.5-second off for the first minute of the Belt-Minder® warning cycle. Belt-Minder® B provides 6 one-second sequences of 0.2-second on/0.2-second off then 0.3-second on/0.3-second off for the remainder of the Belt-Minder® warning cycle.

This pinpoint test is intended to diagnose the following: