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Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 480 (Exterior Lighting System) >> Diagnosis And Testing >> Reversing Lamps >> Pinpoint Tests >> Pinpoint Test U: The Reversing Lamps Are Inoperative >> Normal Operation - Automatic Transmission

Normal Operation - Automatic Transmission

WARNING: This page is about a different car, the 2006 Ford F550 Super Duty, 2006 Ford F450 Super Duty, and 2006 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

Voltage is suppled to the reversing lamp relay coil directly from the powertrain control module (PCM) power relay. The reversing lamp relay coil ground is controlled by the PCM through circuit 324 (YE/LG). The reversing lamp relay is supplied voltage from the central junction box (CJB) fuse 8 (15A). When the reversing lamp relay is energized, voltage is routed to the reversing lamps through circuit 140 (BK/PK).

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