I have a 2001 Harley F150. As I walked to my truck the other night my radio was on (the key was not in it). On the way home my windshield wipers wouldn't work, got home cut the truck off and the a/c fan was still blowing and my headlights were still on (just the headlights, the parking lights and tails and everything else was off) The only way I can cut the headlights off is disconnect the battery, with the air its even more weird in the fact if I cut the air off it stops of coarse but it I turn it back on it does come back on. If I cut the key on then back off it does the same thing where the air stays on. Driving down the radio I haven't had any problems besides the windshield wipers, except the seatbelt chime goes off randomly (when I get in normally I push the button and it does "ding" anymore, one thing that the 2001 would do). No remote start, nothing special wired on the truck. I'm pretty good with 12v wiring, I've installed car electronics for a number of years. I don't know if its the ignition switch or the GEM. Any thoughts or help?

 

Glad it's not mine! LOL

Just kidding, but seriously I have no idea where to start on that one.

 

yep, its' crazy, now the chime dings like the key is in the ignition but its not.

 

Get some Holy water and spritz it on the dash and such saying the whole time "THE POWER OF CHRIST COMPELS YOU!!! THE POWER OF CHRIST COMPELS YOU!!!" Past that check the relays and on some models (not sure if urs is one) has a problem where behind the relay box or fuse box collects water causing different electrical problems randomly.

 

Check for water or other evidence of moisture down in the driver's side kick panel. What happens a lot on these trucks is the windshield gasket leaks and it runs down into the GEM (bolted to the back of the fuse block) and causes problems like this. Just went through it with Lenn's truck.

 

x2 GEM...

 

ok rookie????
but what does "GEM" stand for?

 

General Electronics Module... It controls all interior electrical functions and its bolted to the back of the fuse panel.

I had the same problem with mine. Inop wipers, door chime going crazy, overhead console and HVAC controls working without key in ignition.

You have a water leak. Most likely at the top left corner of the windshield. The water is running down the a-pillar and this is a PERFECT track to ride that ends at the GEM. I'd either get the windshield replaced or find a shop thats willing to try to reseal it. Most of them around me won't touch it without authorization to replace the windshield.