The "flash-to-pass" position on the multifunction switch lights the high beam elements without turning off the low beam elements. The switch is likely not the problem based on your description. Check the bulbs and fuses. I don't mean to overstate the obvious, but sometimes the obvious gets overlooked.
What are the details of your truck? Someone may have a wiring diagram they can post.
'02 F250 7.3 Auto Extended Cab Long Box 225+k Miles No Mods
I get power to the light on low beam but not on high, and when I switch it back and forth from high to low to high again it sounds like the contactor is messed up inside. Not the normal noise I am used to them making. Any Ideas before I drop $96 on one?
__________________ My V10 will out pull your PSD any day of the week,
If its close to stock and of the same age as my V10.
pull your steering column apart and check the wiring into the switch. there is a zip tie on the wiring harness an inch or two back from the switch, sometimes it is to tight and pulls on the connector at the switch (like my truck and pulls the harness out ) it made my high beams not work, when i found it it had almost caught on fire, all burnt fixed it up and have not had a problem in four years.
2003 CC/SB/4X4 6.0 LARIAT 3.5 leveling kit by fab tech, 08 taillights and bumper, bocar front bumper, 05harley headlights, egr delete by ME. Auber egt, trans,fuel pressure gauges.
2011 F550,vmac compressor,Tiger 5000lb Crane, 11.5 Brutus service Body http://www.ford-trucks.com/forums/11...ice-truck.html
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company.