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Home >> Lincoln >> 2011 >> MKS EcoBoost >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Exterior Lights >> Exterior Lighting System >> Diagnosis And Testing >> Headlamps >> Principles of Operation >> High Beam Functionality

High Beam Functionality

When the high beams are requested, the ballasts remain powered and a shutter within each headlamp is activated. This changes the headlamp beam pattern to illuminate a greater distance.

The flash-to-pass feature is unique for HID equipped vehicles without separate halogen high beam bulbs. If the low beams are off when the flash-to-pass is requested, the ballasts and the shutters are activated for approximately 0.5 second. If the low beams are on when the flash-to-pass is requested, the shutters within the headlamps are activated as long as the multifunction switch is held in the FLASH-TO-PASS position.