2000 grand prix R/S problems
Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=85252
Printed Date: July 14, 2025 at 4:23 AM
Topic: 2000 grand prix R/S problems
Posted By: bigbuffs
Subject: 2000 grand prix R/S problems
Date Posted: November 06, 2006 at 7:44 PM
I'm trying to install an easycar remote start in my grand prix. (https://www.easycaralarms.com/product.htm) <<<<this one. After a day of wizing with it I am pretty frustrated. I cannot seem to get the door trigger to work. I am almost certain I have the right wire, it is a tan wire that runs up to a heatsink near the driver kick panel. It runs right next to a blue wire which I think is the passenger door trigger. I have tried to tap into the tan wire, when I hook up the door trigger input (-) it always shows the door as open. If I hook up the (+) it always shows it as closed. I am a novice at R/S so i am probably doing something wrong, but I did try hooking up a diode to it and got the same result. Can anyone help me out here?
Replies:
Posted By: audiopete
Date Posted: November 06, 2006 at 8:40 PM
tan and dark blue -neg trigger tan dr kick and dark blue pass kick panel diode isolate these wires
Posted By: bigbuffs
Date Posted: November 06, 2006 at 9:01 PM
I did that and still got the same result.
Posted By: audiopete
Date Posted: November 06, 2006 at 9:18 PM
what are you using to test these wires
Posted By: master5
Date Posted: November 06, 2006 at 9:26 PM
If your domelight comes on when the door is open, and turns off when the door is closed, you know the door switch / domelight circuit of the vehicle works. It would make sense to assume you are on the wrong tan wire. -------------
Posted By: bigbuffs
Date Posted: November 06, 2006 at 9:29 PM
I used a digital multi-meter, the wire read around 12v when the door was open or closed. I thought that I might have the wrong wire but i don't see any other tan wire in the drivers kick panel and since the system said the door was open when i wired to it i figured i might have just hooked up the diode wrong or something.
Posted By: bigbuffs
Date Posted: November 06, 2006 at 9:39 PM
Also I thought about just wiring to the dome light but it has a delay on it so I don't think that will work. Correct me if I'm wrong.
Posted By: chris354
Date Posted: November 06, 2006 at 9:41 PM
The wires you need will be neg when the door is open.
Posted By: bigbuffs
Date Posted: November 06, 2006 at 9:47 PM
anyone know the exact location of the wire? All the diagrams say driver side kick panel and a tan wire, but this wire is the only one that seems to fit the bill. Also exactly how do I test the wiring using the multi meter? Do i just ground the neg. of the multi meter and probe for a -12v wire.
Posted By: master5
Date Posted: November 06, 2006 at 9:48 PM
Use this diagram once you found the right wires... 
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Posted By: master5
Date Posted: November 06, 2006 at 9:54 PM
It might work if you go straight to the domelight. Most systems can be programmed for a delay. However on many late model GM vehicles it could cause false alarms after the vehicle sits for a length of time. You are best finding the correct wires. -------------
Posted By: master5
Date Posted: November 06, 2006 at 9:59 PM
You are looking for a negative when the door is open. When you find the right wire it will show this. Put the positive probe of the meter to 12v constant. Test for the door trigger wire with the negative probe. When you hit the right wire it will show 12v when the door is open and 0v when the door is closed. -------------
Posted By: bigbuffs
Date Posted: November 06, 2006 at 10:18 PM
This wire is reading 12 v constaltly so it must be wrong. I can't figure out what other wire it would be but its getting to late to probe around for it tonight.
Another question and Thanks for all the help guys,
My car had a remote start already installed in it but it did not work very good. I know that I need a bypass but obviosly it already has one in it because of the old remote starter. I clipped to wires from the old remote start that ran to the bypass but I am not sure how to hook up my new r/s (https://www.easycaralarms.com/product.htm) to the bypass. The car will remote start when i have the key in the ignition but not if I don't. Can anyone tell me how to connect to the bypass.
Posted By: master5
Date Posted: November 06, 2006 at 10:58 PM
That vehicle uses a passkey 3 system. If the old RS worked there is a bypass module in the vehicle somewhere. Some bypass modules for that system will have the key or part of it inside the module. Look around and post what you found and perhaps we can help you to hook it in. -------------
Posted By: bigbuffs
Date Posted: November 06, 2006 at 11:18 PM
There are 2 wires running from the steering column but i can't see exaclty where they come from, but one of them runs two a key that is wrapped in elec. tape, and then it runs to a relay and the other wire runs to the same relay relay. This relay then has two wires running off of it that were connected to the old system. One of the wires is red and the other is green. The old system labeled the green wire as grounding when running out and the red wire as +12V Out (1 amp max).
Posted By: bigbuffs
Date Posted: November 07, 2006 at 10:25 AM
I removed the rubber cover that houses the wires that run from the door. Obviously it has to be one of the wires. Though they are not easy to test i've tried them all and none of them seem to be the right one. This is driving me nuts.
Posted By: bigbuffs
Date Posted: November 07, 2006 at 11:29 AM
I found the wire but for some reason the remote starter only reads the door open/closed correctly when the car is running. If it is not running it eather reads it open always or closed always depending on the direction of the diode. What the hell is going on?
Posted By: bigbuffs
Date Posted: November 07, 2006 at 5:51 PM
well, I have the pretty much everything but the door trigger working now. It only reads them correctly when the engine is running or when the key is set to acc/on. Anyone know why this is? If I hook up a relay would that take care of the problem?
Posted By: bigbuffs
Date Posted: November 07, 2006 at 11:20 PM
Alright thanks everyone for your help but I finally got it all figured out. The only thing I havent hooked up is the speed sensing. Does anyone know where i can find this wire and what color it is?
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