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Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 818 (Exterior Lighting System (F250-F550)) >> Diagnostic Tests >> Reversing Lamps >> Pinpoint Tests >> Pinpoint Test U: The Reversing Lamps Are Inoperative >> Normal Operation - Manual Transmission

Normal Operation - Manual Transmission

WARNING: This page is about a different car, the 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 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 PCM power relay. The reversing lamp relay coil ground is controlled by the reversing lamp switch through circuit 324 (YE/LG). Ground for the reversing lamp switch is provided through circuit 57 (BK). The reversing lamp relay is supplied voltage from the CJB fuse 8 (15A). When the reversing lamp relay is energized, voltage is routed to the reversing lamps through circuit 140 (BK/PK).

Possible Causes

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