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Home >> Mercury >> 2009 >> Mariner Base, 2.5 7, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 111 (Information Center - Instrument Cluster (Ic), Message Center, & Warning Chimes) >> Diagnostic Tests >> Instrument Cluster (Ic), Message Center And Warning Chimes >> Pinpoint Tests >> Pinpoint Test E: The Speedometer/Odometer Is Inoperative >> 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.

The instrument cluster (IC) receives the vehicle speed sensor (VSS) signal from the PCM over the controller area network (CAN). The PCM receives the VSS data from the output shaft speed (OSS) sensor. The instrument cluster (IC) monitors the VSS input from the PCM and commands the speedometer with a corresponding movement of the pointer.

This pinpoint test is intended to diagnose the following:

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