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Home >> Lincoln >> 2011 >> MKS EcoBoost >> Repair and Diagnosis (Single Page) >> Electrical >> Gauges >> Information Center - Instrumentation, Message Center, And Warning Chimes >> Diagnosis And Testing >> Instrumentation, Message Center and Warning Chimes >> Pinpoint Tests >> Pinpoint Test AO: The Adaptive Cruise Control Warning Chime Is Inoperative >> Normal Operation

Normal Operation

The Instrument Panel Cluster (IPC) receives the adaptive cruise control chime signal from the Cruise-Control Module (C-CM) over the High Speed Controller Area Network (HS-CAN) communication bus.

The low priority adaptive cruise control warning chime is a single-tone chime that sounds to alert the driver that the adaptive cruise control system has shut itself off due to low vehicle speed (approximately 32 km/h [20 mph]) and that the driver needs to intervene if further braking is required or to resume the adaptive cruise control operation.

The high priority adaptive cruise control warning chime is also a single-tone that is longer than the low priority chime to increase intensity and alert the driver that the vehicle is approaching the vehicle ahead at a faster rate than the adaptive cruise control system can brake the vehicle and that the driver needs to intervene and apply the brakes to slow the vehicle down.

This pinpoint test is intended to diagnose the following: 

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