Alarm Door Sensors. - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 08-23-2008
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Alarm Door Sensors.

Kinda long story, but it all started with a classic sensor problem "or i thought" id set the alarm. alarm would go off on its own randomly. very obnoxious. after that. i just stopped setting my alarm for a week or so and tried it again. and no random set offs..... i thought it was kinda wierd... but whatever. than night rolled around and i realized my dome light and my "third eye" brake light thing was stuck on....or would turn on randomly as if it thought my door was open while driving even....
took the dome light out. cleaned it. nothing. took apart both door switches. cleaned the crap out of them with isopropyl achohol. and believe me, there clean and free moving. i dont use WD-40, it just attracts more dirt than anything else. and id have the same problem a week later....( i like to tuli tromp)

so anyways, that didnt fix it, i checked all my fuses, all connections and switched i could find, and the light staying on problem went away entirely, but now my larm wont go off if you open the door, the lights wont go on when you open the door anymore either. AND the door ajar light STILL comes on. so im really confused.

Any help is apreciated. Thanks ahead.
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Old 08-24-2008
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Try the WD-40, it works! You don't even have to take the door panel off, just spray the WD-40 at the bottom of the latch mechanism in the door.
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Old 08-24-2008
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actuallly. i did..... it was one of the first things i tried befor i cleaned them up with alcohol
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Old 08-28-2008
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Anyone? Please?
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Old 08-28-2008
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Try some white lithium grease? I had the same problem and tried some store brand "general purpose spray lube" which is similar to WD-40...it worked for a few days then when it dried up the problem came back. I bought some white lithium grease in a spray can and sprayed the door latches (and many other things that needed lubing up). The door ajar problem went away, and has stayed away for many weeks. I think it's gone for good.
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Old 08-28-2008
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its not really a door ajar problem, the door ajar sensor works as it should. its more or less just the alarm, something else i may of forgot to mention is the dome light doesn't come on with the doors anymore either. and there is NOT a switch to turn that on or off.
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Old 08-28-2008
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You can turn your dome light on if you rotate the instrument panel light intensity control all the way up. If it doesn't come on then, check the
light bulb.
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Old 08-28-2008
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i know, and that works fine, even the dimming part of it, the switch on the dome light works fine too. the problem isnt there. the problem is with the alarm not sensing the doors opening, and the dome light not turning on when the doors are opened as well. the switch works fine, and the switches in the doors themselves work fine as well. and the last problem is me not knowing how to fix it, its incredibly frustrating to come across something i cannot figure out on my own, which is rare. thanks for the quick reply too, ive been dealing with this problem going on 4 months now..... any more help is appreciated.
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Old 08-29-2008
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im not givin up! lol
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Old 08-30-2008
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I don't know how easy it would be since I've never had an alarm, but have you tried completely disconnecting the alarm? Obviously if everything works normally with the alarm disconnected, you would know the alarm is the problem. Maybe you already know the alarm is the problem and you're just stumped on how to fix the alarm?
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Old 08-31-2008
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Quote:
Originally Posted by jeffb502 View Post
I don't know how easy it would be since I've never had an alarm, but have you tried completely disconnecting the alarm? Obviously if everything works normally with the alarm disconnected, you would know the alarm is the problem. Maybe you already know the alarm is the problem and you're just stumped on how to fix the alarm?
Maybe were both smarter than were letting on? :P ya, im almost sure it is my alarm but i dont know much about it :(
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