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Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 559 (Exterior Lighting System) >> Diagnosis And Testing >> Turn Signal and Hazard Lamps >> Pinpoint Tests (Turn Signal Lamps) >> Pinpoint Test P: The Hazard Lamps Are Inoperative >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2006 Mercury Montego, 2006 Ford Freestyle, and 2006 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.

The smart junction box (SJB) sends a voltage reference signal to the hazard lamp switch through circuit 385 (WH/RD). When the hazard switch is pressed, the voltage signal is routed to ground through circuit 1205 (BK). The hazard switch is a momentary contact switch.