1993 Ford Explorer Alarm keeps going off

My 93 ford explorer has a factory alarm. It went off this morning, 2am!!! in the rain. I tried the remote, nothing, tried the second remote, nothing. Honking and lights flashing, I disconnected the battery to calm the neighbors and hopefully reset everything. I also disconnected the horn. After reconnecting the battery, and waiting a few minutes, the alarm again triggered. Any help out there???? Please!!!

We've had exactly the same problem with a '94 Explorer--every time it rains. That's a heck of a lot in Memphis. We finally took the fuse out for the horn, but this week, we had so much rain, the battery went dead from a whole days of flashing lights. Even the dealer wasn't sure how to deal with this. Please email me if you come up with any solution.

My 93 ford explorer has a factory alarm. It went off this morning, 2am!!! in the rain. I tried the remote, nothing, tried the second remote, nothing. Honking and lights flashing, I disconnected the battery to calm the neighbors and hopefully reset everything. I also disconnected the horn. After reconnecting the battery, and waiting a few minutes, the alarm again triggered. Any help out there???? Please!!!

Rain gets in near the bottom of the left rear window, above the area behind the panel where the jack is stored, just forward and above the rear windshield wiper tank. The water runs down onto the alarm control module circuit board. It caused the alarm to sound, door locks to open and close, headlights to stay on, and other odd things.

I have never found the source of the water, whether the window leaks or whether it just "sweats" and water runs behind the plastic intrior trim panel. You will probably see rusty stains around the area. Gently blowing out the area with a hair dryer is the short-term fix.

I repaired it by using duct tape to hold a piece of plastic sheeting to the inside of the body panel that then hangs over the module, diverting the drips. Do not cover the module tightly, it needs good air flow to stay cool.

Rain gets in near the bottom of the left rear window, above the area behind the panel where the jack is stored, just forward and above the rear windshield wiper tank. The water runs down onto the alarm control module circuit board. It caused the alarm to sound, door locks to open and close, headlights to stay on, and other odd things.

I have never found the source of the water, whether the window leaks or whether it just "sweats" and water runs behind the plastic intrior trim panel. You will probably see rusty stains around the area. Gently blowing out the area with a hair dryer is the short-term fix.

I repaired it by using duct tape to hold a piece of plastic sheeting to the inside of the body panel that then hangs over the module, diverting the drips. Do not cover the module tightly, it needs good air flow to stay cool.

My 1994 Ford Explorer just had the same alarm events several times today. I am a new auto tech, but had no idea where to start with this problem.

I opened the panel just as written above and YES!! rust and water on the controller panel. I followed the directions here and I am offering many thanks for this post and this forum!

Chris X

Thanks barcoder!!!!!
I wasnt sure what wireing harness you were talking about but i found it and it was weird a first because i unpluged the first wireing harness and it made a screaching noise from the front dash and i couldnt figure out where it came from but then i un pluged the other one and it works fine now, im going to try to find a wire digram to find out what wire i can snip off so i can plug it back in but thanks a ton!!

Big help!

Trev

One of the door ajar switches may be bad. It could be a faulty alarm module.

I have tried all three suggestions I've found:
Make sure battery is charged. It is
Put new batteries in keyless entry. Did it.
Open rear panel and put plastic diverter over relays. Did it.
Using hair blower now to dry out relays where obvious drip was, although it looks like some other relays are dripping from above, and the metal of the car on the inside above that is not wet. Where is the water coming from?

Anyway, I am hoping for the best and letting the blower dry the circuitry out thoroughly. Yesterday was a 3 inches of rain day. I'm thinking the reason the people sold this vehicle to me was that summer was almost over, and they were not going to go through the false alarms hassle again!

I hope this works on my Exploder.

Thanks for all the suggestions!