EDITED TO PUT IN THE FIX.
Last night I took the batteries out of my both my keyless entry controls.   While taking one of them apart there was all kind of crud in it.  Left the batteries out.  No honking last night.  Cleaned out the crud and put in new batteries, works perfectly now.  Should have checked them first.  I'll know next time.

Yesterday I drove home through a pretty bad storm.  Got home parked my truck in the garage.  Later I heard a honk.  Anyway now randomly my truck honks, locks the doors, and flashes the lights like I'm hitting the keyless entry lock button.  Sometimes it does it seven or eight times on a row.

I've checked what I think are the right fuses they seem OK.

I've disconnected the battery and after the reconnect it starts back.

Tonight I'm taking both my keyless entry control and leaving them at my brother's house(about two miles away) to see if my controls are sending out random signals.

What else could it be????  I left the battery disconnected all last night so I could sleep.

This sounds like it may be a relatively new truck.  Instead of leaving the remotes so far away, just take the batteries out.  If the problem persists, take it to a dealer.  There may be a service bulletin out on it.

Same thing happened to me with an older vehicle. Foam dry rotted and allowed contact--voila the horn begins honking randomly and soon continuously. I unplugged the 2 horns and had the shop take care of the replacement. No more problems!
That was back when I lived in an apartment, so it got kind of embarrassing when I went outside to see who was laying  on the dang horn with the rest of my neighbors only to find it was MY car!!

Does your truck have a name?

How about...

I can offer no advice other than what's in the posts above.  However as a former Ford owner, I offer this:


FORD ACRONYMS:

Fix Or Repair Daily
Found On Road Dead
Backwards... Driver Returns On Foot
Backwards... Dorks Ride On Fords
Factory Ordered Road Disaster
Factory Ordered Rebuilt Dodge(Datsun)
Flip Over Read Directions
Four Old Rusted Doors
Fixed On Race Day
Ford Owner Really Dumb
For Only Retarded Drivers
Ford Owners Recommend Dodge
Flipped Over Russian Dunebuggy
Found On Russian Dump
For Off Road Death
it Freaking Only Runs Downhill
Fat Old Rusted Dog
Freaking Old Rusted Dodge(Datsun)
Frigin Oakies Really Dig it
Funky Old Road Dog
Found On Roadside's Destroyed
Backwards...Don't Ride Over Fifty
Fixed-up Old Repossesed Dodge
Found Old Rebuilt Dodge
Forget OutRunning Dale
Found On Railroad Deserted
Found On Railroad Dead
Fools Only Read Directions
First On Repair Dolly
Favorite Of Redneck Drivers
Backwards- Dumb Retards Own Fords
Funny Old Rebuilt Dodge
Fast Only Rolling Downhill
Found On Russian Dump
Forfiet On Race Day
Found On River Dead
Failure Of Research & Development

I have a Ford Ranger with an aftermarket Viper security system.  I have experienced the same problems that you are.

It is a bad relay that is shorting out.  The problem is figuring out which one it is.  It is my understanding that there is a control module in the dash behind the radio that handles the horn, wipers, lights and such and the problem all feeds there.

Good luck finding the solution.  

Doc

Bad news dude, its possessed

A man pulled up next to a little girl walking home from school and said "If you get in, I'll give you a lollypop." The girl kept walking. Following along slowly, the man said "Come on and get in the car with me and I'll give you two lolly pops." She kept her eyes on the sidewalk and continued on her way. The man said "Get in with me and I'll give you this whole bag of lollypops!" Finally, the girl turned and said "Look daddy, YOU bought the Ford, YOU ride in it!!!"

Do you know that Ford has admitted they are expensive and unreliable? That new commercial they are running says so! When that country singer says "If I had me some money" he admits he can't afford one, and when he adds that he'd "buy a Ford truck or two" it because he needs a spare.

Next time some Fordnatic claims Ford means "First on race day" remind them that anything could be fast if a team of mechanics worked on it all week so it would last long enoug to run a race before needing another weeks work.

WHY ARE THE NEW FORD TRUCKS AND CARS MORE AERODYNAMIC?

So they will save the Chevy gas when the Chevy tows them away.

WHAT SHOULD THE FORD MUSTANG REALLY BE CALLED?

The Ford Rustang, The Ford Muststink
WHAT SHOULD A FORD THUNDERBIRD REALLY BE CALLED?

A ford thunderturd

SPEED KILLS DRIVE A FORD LIVE FOR EVER

I'd rather push a Chevy than drive a Ford!

HOW DO YOU DOUBLE THE VALUE OF A PINTO?

Fill it with gas!

The Ford Escort. Otherwise known as The Ford Escort Me To A Chevy Dealer!

Have You Out Driven a Ford Lately?

Ford is just another four letter word!

The Ford Ranger, Otherwise know as the Ford Danger!

The Ford Explorer, Otherwise know as the Ford Exploder!
WHY ARE THERE SIDEWALKS BESIDE MOST STREETS AND HIWAYS?

So Ford owners have a safe place to walk home.

WHY DID FORD PUT HEATERS IN THE TAILGATES OF THEIR NEW TRUCKS?

To keep their hands warm when they are pushing the truck into the shop.

HOW IS A GOLF BALL DIFFERENT FROM A FORD?

You can drive a golf ball 200 yards!

FRIENDS DON'T LET FRIENDS DRIVE A FORD

Quoted: What else could it be????

They're here!!!!

I had a friend who had this happen to his Ford Expedition.  Turned out to be an electrical connection inside the door that wasn't sealed properly and anytime it got wet water would get in it and complete the circuit.

Quoted: A man pulled up next to a little girl walking home from school and said "If you get in, I'll give you a lollypop." The girl kept walking. Following along slowly, the man said "Come on and get in the car with me and I'll give you two lolly pops." She kept her eyes on the sidewalk and continued on her way. The man said "Get in with me and I'll give you this whole bag of lollypops!" Finally, the girl turned and said "Look daddy, YOU bought the Ford, YOU ride in it!!!" Do you know that Ford has admitted they are expensive and unreliable? That new commercial they are running says so! When that country singer says "If I had me some money" he admits he can't afford one, and when he adds that he'd "buy a Ford truck or two" it because he needs a spare. Next time some Fordnatic claims Ford means "First on race day" remind them that anything could be fast if a team of mechanics worked on it all week so it would last long enoug to run a race before needing another weeks work. WHY ARE THE NEW FORD TRUCKS AND CARS MORE AERODYNAMIC? So they will save the Chevy gas when the Chevy tows them away. WHAT SHOULD THE FORD MUSTANG REALLY BE CALLED? The Ford Rustang, The Ford Muststink WHAT SHOULD A FORD THUNDERBIRD REALLY BE CALLED? A ford thunderturd SPEED KILLS DRIVE A FORD LIVE FOR EVER I'd rather push a Chevy than drive a Ford! HOW DO YOU DOUBLE THE VALUE OF A PINTO? Fill it with gas! The Ford Escort. Otherwise known as The Ford Escort Me To A Chevy Dealer! Have You Out Driven a Ford Lately? Ford is just another four letter word! The Ford Ranger, Otherwise know as the Ford Danger! The Ford Explorer, Otherwise know as the Ford Exploder! WHY ARE THERE SIDEWALKS BESIDE MOST STREETS AND HIWAYS? So Ford owners have a safe place to walk home. WHY DID FORD PUT HEATERS IN THE TAILGATES OF THEIR NEW TRUCKS? To keep their hands warm when they are pushing the truck into the shop. HOW IS A GOLF BALL DIFFERENT FROM A FORD? You can drive a golf ball 200 yards! FRIENDS DON'T LET FRIENDS DRIVE A FORD

Guaranteed
Malfunction  

If your truck is the honker, you must be the honkie......

The is probably a short in your keyfob/alarm system. Dont let people hate on you about a Ford, my F150 has 135000 miles, has no problems, and will easily go another 100,000 miles. Chevy drivers are just jealous cause they bought a crap truck

Take the "Honk if you're GAY!" sticker off the bumber.

SInce this happened after driving in a storm, I suspect you have  a water leak.  Look at the GEM module since most of the stuff that's freaking out is controlled by it.  Also the  Keyless entry module  can cause this.  There have been reports of windshields leaking and causing electrical malfunctions.  
Go to
http://www.f150online.com
for more expert help.

Fritz
2000 F150 driver, future Jap truck owner.

Take to nearest dealer.

Maybe its just horney...

Last time I had something like that happen, I was fly fishing, went in a little too deep, and got my keyless entry thingy on my keychain wet.  On my drive home, the doors were locking/unlocking the whole way!  

My best guess would be that you have gotten something wet and it's causing a bridge between some contacts making things go haywire. Unplug any connectors that may have gotten wet and use a blow dryer to dry them off. That may fix it. If it still is messing up take it to the dealer and let them look at it.

www.alldata.com

All you Ford haters, enough!  My friend has a new Chevy truck with more cheapness in it than I've ever seen.  6 months old and the screws on the seats are comming out, the tail light covers are about to fall off, the truck rattles when you ride in it like a party toy, and it doesn't stop there.  I've owned a few GMC vehicles and known a lot of people who have as well, and they aren't the best thing on the road.

No more Hatin'