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Dealer Optioned Underbody Security Lighting System Upgrade for all 92-11 Crown Victorias, Grand Marquis, and Lincoln Town Cars! In this tech article, I outline how to upgrade all 1992 to 2010 Crown Victorias with the rare "Underbody Security Lighting System." This option was offered on all Crown Victorias, Grand Marquis, and
Lincoln Town Cars for several years in the early to mid 00s. Understand of course this option never came on any Panther platform when it left the factory in Canada, but it was a fully sponsored "factory dealer option." Basically,
this option was installed at the dealership by speciality service reps, and could be ordered when a customer purchased or ordered a car.  What this available feature actually did was provide what's called "puddle lighting" for the customer's vehicle. Depending on how the vehicle was equipped, the vehicle would provide area lighting for the vehicle on entry, or for what was known as "illuminated entry." For vehicles equipped with illuminated entry, unlocking the car with the key-fob, pulling up on the door handle, or physically opening the door would activate the outside ground illumination. Vehicles without illuminated entry would simply have the ground illumination activated when the doors were open. The purpose for this lighting is fairly self explanitory. *Illuminated Entry - Throughout the years, Ford motor company began to "decontent" their vehicles. Decontenting is the practice of eliminating functionality and features that would otherwise be unnecessary in order to save production costs. Illuminated entry, while available through most years, was no longer standard after a certain year. In 1995, illuminated entry included the following: - Illuminated door locks - Interior floor illumination - Automatic headlight illumination - Door accent lighting By 1998 however, everything was eliminated except the automatic headlight illumination or the interior floor illumination. The ideal configuration would be to integrate the Underbody Security Lighting System with the illuminated entry because it would provide lighting not only when walking to the vehicle, but upon exiting the vehicle. This is how the dealerships installed it, and this is how I will proceed wil my install as well. Now, these kits are no longer being offered by Ford, or by the dealerships. In fact, the majority of the parts are impossible to find now. A member on the Mercury Marauder forums bought up all the last remaining brackets and lights that he could get, and began piecing together install kits (w/ instructions) based on the original hardware. I purchased one of these kits. When I ordered the kit, this is what I got:  This kit included the following parts: - 2x Truck-Lite Super 60 sealed beam bulb w/ Polycarbonate lens - 2x FoMoCo lighting brackets (no longer available) - Cable Ties - Wire Harness w/ relays - Screws, Hardware, wire splice connectors |
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