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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 >> Stoplamps >> Pinpoint Tests >> Pinpoint Test I: All The Stoplamps 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 stoplamp switch is supplied voltage from the Smart Junction Box (SJB). When the brake pedal is applied, the stoplamp switch routes voltage back to the SJB  and the high mounted stoplamp. The SJB  provides voltage to the rear lamps when it receives input from the stoplamp switch indicating that the brake pedal is applied.

This pinpoint test is intended to diagnose the following: 

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