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Home >> Mercury >> 2010 >> Milan Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1214 (Exterior Lighting System) >> Diagnosis And Testing >> Turn Signal and Hazard Lamps >> Pinpoint Tests >> Pinpoint Test L: The Turn Signal Lamps Are Inoperative >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

The Smart Junction Box (SJB) sends voltage signals to the multifunction switch to monitor the LH and RH turn input. When the multifunction switch is switched to the LH or RH TURN position, the voltage signal is routed to ground. When the SJB  detects the multifunction switch is in the LH or RH TURN position, the SJB  sends voltage to the appropriate turn lamps.

The turn signal lamps and the rear stoplamps share the same voltage supply from the SJB  fuse 6 (20A).

This pinpoint test is intended to diagnose the following: 

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