How do I unhook the security system On a '93 JGC without cutting off the fuel pump?

[jb_sweet_99]

My security system keeps draining my battery, when I try to start it the security system flashes and I have to turn the security off with the key then try to start it again, even when I am getting a boost. The security system makes a quick ticking sound when I'm starting the Jeep, it's a 1993 Grand Cherokee Ltd. I tried someone's suggestion on here about taking out the 6th and 7th fuses to turn off the security system, but I then found out that when you do this it shuts off the fuel pump, so it starts, but won't stay running. The battery and the alternator are fine, it will hold a charge sometimes for 5 days, but then sometimes it won't start an hour after I've boosted it. I am wondering if the issue is because my liftgate is permanently locked shut, but the computer tells me the liftgate is ajar, could this be setting off the security system? Can someone please help me find a way to do this? It's getting quite frustrating! Thanks!

[CoachKarl]

I think I saw the solution up in that top post. Try the "search this forum" tool. That usually turns up the info I need. Be sure to post back and tell us all how you did it.

CoachKarl

[jb_sweet_99]

Thanks, I'll try that.

[jb_sweet_99]

I've tried everything in the other posts I can find. I'm looking for detailed instructions on how to disarm the system for good, I heard about grounding a purple wire, but not many instructions were given. Could anyone explain what to do here? Thanks!

[CoachKarl]

Post the link about the purple wire. I've been digging around that system these last two days, and can help (maybe). IMO, your dead battery isn't being caused by the alarm. I'd bet you have a ground fault issue. If you were to disconnect the neg battery terminal, then re-attach, do you have the same symptoms?

CoachKarl

[jb_sweet_99]

Originally Posted by CoachKarl

Post the link about the purple wire. I've been digging around that system these last two days, and can help (maybe). IMO, your dead battery isn't being caused by the alarm. I'd bet you have a ground fault issue. If you were to disconnect the neg battery terminal, then re-attach, do you have the same symptoms?

CoachKarl

I will try to find that post address, but here's a copy of it:

The FACTORY ALARM DISARM WIRE IS
purple/yellow |-| in the driver kick panel area,
at the black plug.

Once Located, splice into this wire with
a simular guage wire, and put it to
a solid chassis ground. This terminates
the alarm functions entirely.

I will try disconnecting the neg battery terminal and see if that helps and let you know. Thanks again for the help, I'd rather not pay a garage to do something I can figure out myself!

[ccarter84]

I tried this in my 94 JGCL and first of all there was not a purple/yellow wire but a bright pinkish red/yellow. I thought that maybe someone could mistake that for purple and tried to ground it. No luck, hopfully you have more success than I .

[jb_sweet_99]

Originally Posted by ccarter84

I tried this in my 94 JGCL and first of all there was not a purple/yellow wire but a bright pinkish red/yellow. I thought that maybe someone could mistake that for purple and tried to ground it. No luck, hopfully you have more success than I .

Thanks for the info. I've been given a few suggestions to try and when I figure out which one works I'll post it on here.

Thanks Again!

[dksob81]

Originally Posted by ccarter84

I tried this in my 94 JGCL and first of all there was not a purple/yellow wire but a bright pinkish red/yellow. I thought that maybe someone could mistake that for purple and tried to ground it. No luck, hopfully you have more success than I .

There should deffinately be a PURPLE/YELLOW wire, in my 94 there was actually a couple of them and gave me a lil trouble when I installed a remote starter in it.

[ccarter84]

The instructions that I found said that the purple wire would be under the kick pannel which is where I found the pinkish one. I did see 3 purple/yellow ones up above the kick pannel, would it hurt anything if I just started grounding these wires to see if any of them worked, if so should I remove the splitter and repair the wire if I find one that doesn't work? Thank you thank you any advise is apreciated.

[jb_sweet_99]

Originally Posted by CoachKarl

Post the link about the purple wire. I've been digging around that system these last two days, and can help (maybe). IMO, your dead battery isn't being caused by the alarm. I'd bet you have a ground fault issue. If you were to disconnect the neg battery terminal, then re-attach, do you have the same symptoms?

CoachKarl

So, I tried this and it still won't hold a charge. I also tried a different way of unhooking the security, which didn't work because it cuts off the fuel pump as well. Did you happen to try the purple wire trick? Has anyone else tried it and knows it works? I don't want to try it for nothing, because I've put a lot of time in for nothing lately and it's way to cold in Canada for this right now! My brother in law is going to test the battery in his vehicle to see if it dies, just to be sure it's not just the battery itself.
Any further suggestions? Thanks to all who have replied.

[CoachKarl]

Sorry about my absence,
I've been making a Pinewood Derby Car. (My last). Let me get my facts straight here.
Yes electrical problems are the most frustrating. Hang tough. Consider this like a puzzle.
1. To get you through, get used to the idea that, the neg terminal must come off before you leave the car overnight, and be mashed back onto the battery every morning. (If you don't you'll have to fool with it in the morning with that jump start dance)
2. If you've already tried pulled the neg off overnight, re-attached in the morning and the battery dead in the morning anyway, then "i bet" you've got a bad battery. If you bought it recently, probably a dead cell. To prove this, a multi meter will register < 10 volts from terminal to terminal. This would be in contrast to a worn out battery. A very old battery will still register 12 volts, even though it cannot supply the amps necessary to run the starter. Onset of a battery wearing out would be, your radio presets go away . . . . just after you started the car.
3. When I unhook my battery to do any work on my electrical system, I always leave the key in the drivers side door. When I'm done, the last thing I re-attach is my neg terminal. When I do, the "clicking" occurs, and the lights flash until I go around and flip that key left and right
My experience with a changing out my ignition switch seems to match your original problem, which leads me to believe that your symptoms are caused by "something draining your battery dead, like a ground fault", and your security system woes are only a "symptom".
Onward and upward.
That "rear tailgate ajar" thing you mentioned is interesting. How about kicking that back door loose, pulling off the trim and unplugging the tailgate from wiring harness? See if that doesn't fix your problem.

Coach Karl.

[jb_sweet_99]

So, the battery is being tested today, so we shall see about that.
As for the tailgate, It was having issues and was always locked, and wouldn't close without slamming it. I got it open, then when I closed it, it will not relock. I have actually cut off a bunch of the plastic on the inside and I cannot get to it to try to open it, It's locked but not shut all the way. I know it makes no sense, but it is. So now it is just always locked, I can't even turn the key in the lock due to damage from trying to get it open the first time.
I'm really just hoping I'm wrong and it's the battery. If it turns out not to be, I will be starting to take off the neg cable nightly until I figure it out, and hopefully it still doesn't die.
I appreciate all your help Coach!

[CoachKarl]

Hang tough.
If it's just the tailgate thats damaged, call your local junkyards, and find a new one. Cheap junk yards have wrecks that you can pull it yourself. Fancy junkyards will deliver the "new" tailgate to your doorstep. When you call them ask for "price and availability" of a "93 Jeep tailgate". Ask about color (int & ext), and don't call just one place. If a yard want's $100, jump on it. Go buy the tools, and pull it yourself this weekend. If anybody tries to charge you more than $300, tell them Okay, but they must install it.


Good Luck

[xj31]

If you seriously want to disable the factory theft alarm,here is how you do it.First you have to access the vtss module.It is behind the glove box to the right of the radio.You need to take the right side of the dash apart to get at it.Ok,then you start the jeep and leave it running,I was told for at least 2 minutes, but I think that is not really necessary.Next, while the jeep is running,unplug the vtss module.It should stay running,in fact the jeep has to stay running.Leave it running for 2 minutes is what I was told.Then you just leave the module disconnected and the pcm should not look for it anymore.I know this actually works because I had to do it.I am a tech at a Jeep dealer and a customer had a defective vtss module that would lock up every few days.I was going to replaced it but the part has been discontinued so he would have been screwed.Ifound out through Chrysler that you could disconnect it and it actually works.I don't know if this will fix your battery problem but it will get rid of the alarm