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Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 285 (Exterior Lighting System) >> Diagnosis And Testing >> Public Safety - Police Package >> Pinpoint Tests >> Pinpoint Test Z: The Public Safety Equipment Power Supply Is Inoperative >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2006 Mercury Grand Marquis and 2006 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.

The police power relay is supplied battery voltage from the battery junction box (BJB) fuse 112 (40A) through circuit 175 (BK/YE). The police power relay coil is supplied ignition switched voltage from the central junction box (CJB) through circuit 297 (LB/PK). Ground for the police power relay is supplied through circuit 57 (BK). When the police power relay is energized, voltage is routed through circuit 401 (PK) to multiple police systems.

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