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Home >> Lincoln >> 2009 >> MKX FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 909 (Exterior Lighting System) >> Diagnostic Tests >> Trailer Lamps >> Pinpoint Tests >> Pinpoint Test V: The Individual Trailer Lamp Is Inoperative >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2007 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.

When the brake pedal is applied, the smart junction box (SJB) provides voltage to the trailer tow connector for the LH and RH trailer stoplamp through circuits CBB42 (GN) and CBB38 (GY/BU), respectively.

Possible Causes

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