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95 jeep grand cherokee laredo: alarm system..engine turns..unlock

Customer Question
How to disable the alarm...
How to disable the alarm system on a 95 jeep grand cherokee laredo. Every time I try to start the car the engine turns the security lights flash and thats about all it will do. This problem has been around for a bit but before I could just get out and unlock the drivers side door and the car would start. I've heard you can disable the alarm by grounding a certain wire any thoughts?
Submitted: 5 years ago.Category: Jeep
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Answered in 1 minute by:
1/31/2012
Jeep Mechanic: Amedee, Jeep Technician replied 5 years ago
Amedee
Amedee, Jeep Technician
Category: Jeep
Satisfied Customers: 26,796
Experience: ASE certified Technician advanced level specialist. Wisconsin certified emissions state inspector
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Hello!

Are you certain that it is an alarm issue on your vehicle preventing it from starting?
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Customer reply replied 5 years ago
Yes, I'm fairly sure. When the alarm goes off a few times in a row it would seem the battery is getting drained, but than once the alarm does shut off you have full power to the radio horn ect...
Jeep Mechanic: Amedee, Jeep Technician replied 5 years ago
You can do this by momentarily grounding the disarm wire at the anti theft module with the key off and out of the ignition. Then start the engine and disconnect the anti theft module and let the engine run for another minute or so. The PCM will actually learn that there is no longer an anti theft system and you will be good to go!


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Customer reply replied 5 years ago
Could you walk me through how to do those two things? I've been told that's a good fix I just need to know what wires to ground and that sort of thing
Jeep Mechanic: Amedee, Jeep Technician replied 5 years ago
You bet!

The alarm module is under the dash either near the center of the vehicle or towards the drivers side. The wire you need to ground is pin 4 the VT/YL wire.
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Customer reply replied 5 years ago
What's the best way to get at it?
Jeep Mechanic: Amedee, Jeep Technician replied 5 years ago
From under the dash. You may have to remove some plastic covers and such, but it will not be hard. The connector going into the alarm module will have 21 wires
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Customer reply replied 5 years ago
Is there any way to start it with the alarm fuses pulled? I guess at this point I would just want to start it and bring it somewhere to get it disarmed.
Jeep Mechanic: Amedee, Jeep Technician replied 5 years ago
I do not believe this will work otherwise a burglar would just simply pull the alarm or anti theft fuse and away with your vehicle. Why would the engineers built the security system like that. So sorry.. but that is not the way it works.

I have answered your question and then some.. I would appreciate it if you would accept my answer.

Best Regards
<br/Customer
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Customer reply replied 5 years ago
Yeah that was a bad question, but I am also not a mechanic I'm just looking for some walk through of how to turn this darn alarm off. I don't really know which wire to splice and ground is it red green blue? Just give me a good rundown and I'll be good. so far all of this stuff is fairly available but not a lot of help as far as how to actually do this.

Thanks,
Jeep Mechanic: Amedee, Jeep Technician replied 5 years ago
Hello! Sorry for the delay! I am out picking up my little one from daycare. I am using my I phone. I did give you all of the instructions on how to to this. Again, you need to ground the VT/YL wire on pin 4 of the alarm module to do this. Please follow the instructions that I have posted for you in my previous post. Thanks!
Amedee
Amedee, Jeep Technician
Category: Jeep
Satisfied Customers: 26,796
Experience: ASE certified Technician advanced level specialist. Wisconsin certified emissions state inspector
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Customer reply replied 5 years ago
I'm not quite sure where the alarm module is, or what is really looks like.
Jeep Mechanic: Amedee, Jeep Technician replied 5 years ago
It looks like a small silver or gray box... Like a mini computer. I can send a picture when I get home. It is under the dash on the drivers side or near the center of the vehicle. You will just have to get in there and take a look
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Customer reply replied 5 years ago
Great a picture would be perfect.
Jeep Mechanic: Amedee, Jeep Technician replied 5 years ago
Hello!

Sorry for the delay!

According to the picture, it is located on the right side of the dash

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