does the flash to pass function work? That uses high beam bulbs.
If yes, I would bet $100 it's the lighting control module. Very expensive. @ $500. Can buy for $250 @ tascafordparts.com.
Sometimes on Ebay for cheap price.
Lighting Control Module
Principles of Operation
Due to varying wattage ratings and resulting current draw, certain aftermarket headlamp bulbs may cause the lighting control module (LCM) to shut down the short circuit protection, resulting in the low beams becoming inoperative. Verify that the headlamp bulbs meet Ford specifications.
The lighting control module (LCM) receives inputs from the following:
- headlamp switch
- multifunction switch
- photocell and amplifier
Depending on the inputs received, the LCM will command the headlamps on or off.
Power is supplied to the headlamps through lighting control module Circuit 502 (GY) and circuit protection C in the fuse junction panel. Ground is provided to the headlamp bulb and retainer (13N021) through Circuit 57 (BK).
The lighting control module is located under the instrument panel, to the right of the steering column, under the lower steering column cover.
Removal and Installation
Open hood. Disconnect battery ground cable (14301).
Disengage three pushpins and remove lower driver side intrument panel (04320) finish panel.
Locate lighting control module above accelerator pedal.
Disconnect bottom two eletrical connectors from lighting control module.
Remove two screws retaining LCM to bracket and unclip from bracket.
Remove lighting control module from bracket and disconnect two remaining electrical connectors.
To install, reverse Removal procedure. Check lighting control module for proper operation.
the module is about 6 inches lng and 4 inches wide and has 3 wire connectors.