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Home >> Mercury >> 2010 >> Milan Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1103 (Exterior Lighting System) >> Diagnostic Tests >> Trailer Lamps >> Pinpoint Tests >> Pinpoint Test V: The Trailer Lamps Are On Continuously >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2008 Ford RV Cutaway, 2008 Ford Econoline, 2008 Ford E450 Super Duty, and 2008 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

When the trailer tow stop/turn lamp relay is energized, voltage is routed to the trailer tow connector through circuit 52 (YE) (LH stop/turn lamp) and/or 64 (DG) (RH stop/turn lamp).

When the trailer tow parking lamp relay is energized, voltage is routed to the trailer tow connector through circuit 962 (BN/WH).

When the trailer tow reversing lamp relay is energized, voltage is routed to the trailer tow connector through circuit 963 (BK/LG).

This pinpoint test is intended to diagnose the following:

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