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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 >> Headlamps >> Pinpoint Tests >> Pinpoint Test F: The Flash-To-Pass Feature Is 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 a voltage signal to the multifunction switch. When the multifunction switch is placed in the FLASH-TO-PASS position, the voltage signal is routed to ground. When the SJB  detects a request for the flash-to-pass, the SJB  energizes the high beam relay (integrated into the SJB  ), which supplies voltage to the headlamps.

This pinpoint test is intended to diagnose the following: 

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