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Home >> Mercury >> 2008 >> Milan Base, 2.3 Z, Automatic >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Cluster (Ic), Message Center, And 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

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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