motoracr199

I also have the same problem, I installed the fuse and tried again with no success. (Fuse was missing prior to that) Checked for voltage coming from the supposed fuse location and couldn't get a volt reading.

I am working on an 04 F150. Fuse location is 110 or 111 i think on the bottom right. Cigarette lighter is also non-functional.

Any ideas? I havent checked the ground for the pcm yet, where is that located?

Thanks!

Martian

Unplug everything from the cig lighter and power outlet, then replace the fuse. I had this issue. It was a bad cell phone charger that had internally shorted and was blowing through fuses. Do NOT go to a higher-amp fuse.

motoracr199

Is the power outlet and the cig lighter on the same circuit? Power outlet is ac coming from the alternator I thought.

Martian

I didn't look at a wiring diagram for the power outlet on mine. I replaced the fuse once, plugged my cell charger into the cig lighter and it blew, replaced the fuse again, put the cell charger into the power outlet and the fuse blew once more. Charger went into the trash.

Mod (Ret.)

For the 2004 to 2008, yes, the power outlet/cigarette lighter and OBD-II are on the same circuit. I thought is was fuse 41

motoracr199

Alright fuse 41 it was. Thanks all.

ezrah ortiz

My 2007 f 150 lariat the obd port will not work I put a fuse in #41 as it didn't have one and it won't stay in it just falls out not sure what to do at this point as I can't check the engine codes

Bound4Mexico

I have the exact problem with my 2007 KR, fuse wont stay in and falls out, find a fix?

ShirBlackspots

The cigarette lighter is also powered on that same circuit. If it falls out, you probably aren't pushing it in hard enough.

Bound4Mexico

Actually found my answer on answer.com. Lurch, a ford mechanic knew about it all. If the truck is "late build" then the Fuse for the DATA Link is "110", swapped it out and all is good. Wouldn't stay in because it isn't an operating slot. hope this helps some people out there