26 sec alarm system problem
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From: Rocky Mountains
26 sec alarm system problem
I thought I would revisit the channel and see if perhaps there is someone new, who has experienced my problem, since no one else seems to have an answer. I have a 95, 2wd, autotransmission, 3.0 liter, barebones XLT Ranger. One problem that still bugs me that I've not been able to solve. After turning off the ignition switch and exiting the driver's side, the alarm sounds for about 26 sec. After that period of time everything returns to normal. It's definitely not the door switch, the key lock switch or the ignition switch. I don't have a door ajar system or an anti-thief system, so I know that's not a problem. If I sit in the vehicle an wait 26 sec or so, everything is okay and works properly. If anyone has solved a similar problem I would be interested in knowing what the solution was. I'm keeping my fingers crossed and hoping.
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From: Rocky Mountains
Sorry if I'm not clear. The alarm is the one that normally sounds if you exit the vehicle and have either left the key in the ignition switch or your headlights on. If I have done neither of those two things, I should get no alarm upon exiting the vehicle. If I wait about 26 sec. before exiting the vehicle, no alarm. It's this 26 sec. interval that bugs me.
Post Fiend
Joined: Jan 2003
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From: Connecticut
Checking my Ford Manual for a '94 Ranger, it looks to me from the warning chime schematic that the switches that you mentioned play a major role in its function. If you're sure it's not the switches, then that doesn't leave much else except maybe an open circuit somewhere, or the warning chime module (which is behind the dash) is bad.
If you want a copy of the schematic, send me an email and make reference to what you are looking for, and then I'll be able to send it along as an attachment.
If you want a copy of the schematic, send me an email and make reference to what you are looking for, and then I'll be able to send it along as an attachment.
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From: Rocky Mountains
Thanks Rockledge.....I think the 94 electrical alarm system is slightly different than the 95. At least according to my Haynes manual, which is by no means complete. I have the drawing of the 95 alarm system. Someone mentioned the interior lamp relay that has a delay on it. It's supposedly located in Relay Box#1. My drawing of the relay box shows no location for such a relay. Do you know anything about that relay or where it might be located? Then again, I might not have it at all.
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From: Rocky Mountains
I hate to resurrect this old problem, but I have some updated information. I have found if I warm up the cabin of the truck to a comfortable temperature, my chime alarm works perfect. If I get it too warm or too cold, the chime alarm has that same old problem of chiming for 25 seconds after I exit the truck. So.....I definitely have a temperature problem with something in the truck. I am going to use a hair dryer on the chime and tone generator, but I'm not sure where and what it looks like. I presume I will have to remove the kick panel to access the chime and tone generator. Also according to the schematic I have, the chime and tone generator is also called a (GEM) or a Generic Electronic Module. Are they one and the same? I think I'm finally close to a solution to this problem.
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The chime on my '95 ranger stays on sometimes because my ignition is loose. If i turn the outer part without the key in a little bit it will stop.
FYI, the GEM is located right next to the stereo. Take out the 2 screws right above the climate controls then pull the stereo assy. toward you. the GEM is the black box mounted on the left side of the opening. There is one screw at the bottom that holds it onto the bracket. Pulling the wiring harnesses out wont hurt anything. Although, your dome light will shut off and your speedometer will not work if you drive the car.
FYI, the GEM is located right next to the stereo. Take out the 2 screws right above the climate controls then pull the stereo assy. toward you. the GEM is the black box mounted on the left side of the opening. There is one screw at the bottom that holds it onto the bracket. Pulling the wiring harnesses out wont hurt anything. Although, your dome light will shut off and your speedometer will not work if you drive the car.
Last edited by ryanparlee; Dec 20, 2003 at 08:39 PM.
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From: Rocky Mountains
Thanks ryanparlee......Interesting what you said about a loose ignition switch. I presume you're referring to the key lock switch which actually slides the ignition switch, or am I wrong here. Anyway, my key lock switch is so loose that I actually, accidentally, started my truck once with the door lock key. I realized the error of my ways when a lot of the dash panel lights came on and my turn signal indicator failed to work. I have since purchased a new key lock switch and will soon be replacing it. That is where I will direct my efforts first. If that fails, then I will proceed to the GEM module for temperature tests. But I appreciate hearing from a '95 owner for comparisons and your experiences.
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From: Rocky Mountains
I replaced the key lock ignition switch and it seems to work fine. I went into the dash, removed the radio and such and found a black box on the left and a black box on the right. I know the black box on the left is the chime alarm, but is that also the GEM? Or is the black box on the right the GEM?
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From: Manitoba
Do you have an aftermarket stereo, I had the same problem and it was caused by some backfeed from the stereo. I had the power to an indash equilizer connected to the switched power. I moved it and it has worked great ever since. To trouble shoot, pull the radio fuse and see if it fixes the problem.
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From: Rocky Mountains
Thanks RangerBlair....That is very interesting. Indeed I do have an after market stereo. Since that is such an easy test, I will try that next. I will let you know if that solves my problem
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From: Rocky Mountains
Following Rangerblair's advice, I pulled fuse #20, labeled RADIO, GEM SYSTEM, ANTI-THEFT and lo and behold that cured that 26 sec. alarm chime problem. All the alarm systems seem to be operating correctly with fuse #20 removed. Now I'm confused because what GEM SYSTEM am I disabling when I do this? I notice that including fuse #20, there are three other fuses labeled GEM SYSTEM....fuse #10, fuse #25 and fuse #28. How many GEM systems are there? Are they all separate? Since I have no ANTI-THEFT system, I presume all I have to be concerned about is the GEM circuit I am disabling when I pull fuse #20 and is that GEM circuit exclusive to the ANTI-THEFT system?
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From: Manitoba
well, put you fuse back in and pull your radio out, unhook the radio wiring harness if you used one and see if you problem is with the radio. If memory serves me right I had the constant power for my indash equilizer conected to the switched power. Give it a try...
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