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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 563 (Exterior Lighting System) >> Diagnosis And Testing >> Trailer Lamps >> Pinpoint Test AE: The Trailer Battery Charging Is Inoperative >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2004 Mercury Mountaineer and 2004 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.

The trailer battery charging is accomplished through the use of the trailer tow battery charge relay. Power is supplied to the trailer tow battery charge relay by circuit 175 (BK/YE) and when energized, provides power to the trailer tow connector through circuit 49 (OG). The control circuit for the trailer tow battery charge relay is provided by circuit 1003 (GY/YE). Ground is provided to the trailer tow battery charge relay through circuit 1205 (BK).

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