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Have you checked fuse's an relay's ? Free wiring diagrams here http://www.bbbind.com/free-tsb Enter vehicle info. Year , make , model . Under system click on body & accessories , then under subsystem click on power locks or windows .Click the search button then the blue link . At the top of the diagram it shows fuse's that power these thing's . Check those first . Do you know how to test automotive electrical circuit's using a voltmeter ? Do you know what a ford smart junction box is ? The SJB is a fuse / relay panel that has electronic's inside . It is located inside the car under dash panel ,left side .
Module Controlled Functions
The vehicle is equipped with a smart junction box (SJB) and a driver seat module. Smart Junction Box (SJB)
The SJB is a combined fuse panel and microprocessor that controls the following systems:
heated rear window
power door locks (including SMART, autolocking and luggage compartment lid release)
Rear window motor. Roof opening panel module. Auto-dimming interior mirror unit. Door lock switch, driver side. Door lock switch passenger side. Power window motor, driver side front. Overhead console switch assembly
Not sure if this is what you're looking for. Let me know if it works.
get your owners manuel to locate your fuse panel and fuse fo.r the interior light or dome lights. if its blown get yourself a new fuse. if fuse is good you have a broken or shorted wire somewhere . could be a pain to locate
The interior map lamps are powered buy the battery saver relay ( non serviceable relay ) Which is powered by Fuse #25 ( cab fuse panel ). This is for the engine compartment and illuminated vanity lamps, as well as the map lights.
The FET ( Field-Effect Transistor ) shows the fuse #9 also on it. ( marked interior lighting ), which power the interior lamps ( door / switch ).
Could be a few things if both those fuses are OK.
1. The map / interior lamp combos are usually dual element bulbs, which means if the interior lamps ( door or dimer switch on headlamp panel ) are OK, it could still be a burn out bulb.
2. The FET is having an issue from a dead short ( blown bulb or dead short to ground ). Until the short is correct, the FET will not turn back on.
Start with checking Fuse #9 ( marked as Fuse #8 in the diagram, but that shows headlamp ), which is to the interior lamps, and drives 1 side of the FET.