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Home >> Mercury >> 2008 >> Milan Base, 2.3 Z, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1375 (Information Center - Instrument Cluster (Ic), Message Center, & Warning Chimes) >> Diagnostic Tests >> Instrument Cluster (IC), Message Center and Warning Chimes >> Pinpoint Tests >> Pinpoint Test AE: The Compass Is Inoperative >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2009 Mercury Milan, 2009 Lincoln MKZ, and 2009 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

The compass module (early build) receives voltage from the smart junction box (SJB) through circuit CBP19 (BN/WH) or the auto-dimming interior mirror (late build) receives voltage from the SJB through circuit CBP02 (GN). The compass module (early build) or the interior rear view mirror (late build) is grounded through circuit GD139 (BK/YE). The compass module (early build) or auto-dimming interior mirror (late build) communicates the vehicle direction to the instrument cluster (IC) through circuits VMC30 (BU/GY) and VMC31 (YE/GN) and the direction is displayed in the instrument cluster (IC).

This pinpoint test is intended to diagnose the following:

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