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Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 639 (Exterior Lighting) >> Diagnosis And Testing >> Turn Signal and Hazard Lamps >> Pinpoint Tests >> Pinpoint Test M: The Turn Signal Lamps Are Always On >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2006 Mercury Milan, 2006 Lincoln Zephyr, and 2006 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

The smart junction box (SJB) sends voltage reference signals to the multifunction switch through circuit CLS39 (VT/WH) (LH turn input) and circuit CLS41 (GY/YE) (RH turn input). When the multifunction switch is switched to the LH or RH TURN positions, the voltage signal is routed to ground. When the SJB detects the multifunction switch in the LH or RH TURN position, the SJB sends voltage to the appropriate turn lamps.

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