Security system issues - JeepForum.com

 
LinkBack Thread Tools
post #1 of 7 Old 12-03-2009, 09:39 AM Thread Starter
Samson007
Registered User
1994 ZJ 
 
Join Date: Dec 2009
Location: Denver
Posts: 15
Security system issues

Good morning.
So, I have 94 limited, grand cherokee. The battery went dead. Wouldn't hold a charge, so I replaced it with a new batt. Now It wont start. The security system does reset (with a key locking and unlocking the door)
It turns over great. Just not even trying to start. It almost seems like another security system issue. As though the system is still not allowing it to start.?
For the last few weeks, the alarm would sound when you unlock the drivers door. You have to unlock the passenger door first. Which is really odd, and not the norm. Related?
Any help would greatly be appreciated!
Thanks.

Samson007 is offline  
Sponsored Links
Advertisement
 
post #2 of 7 Old 12-03-2009, 10:25 AM
CrazyIvan888
Registered User
1993 ZJ 
 
Join Date: Jun 2009
Location: Wisconsin
Posts: 649
The reason that you need to unlock the passenger door first is because there's a sensor in each of the front doors and the tailgate, they disarm the security system when the lock is keyed. However, they wear out over time (all three are shot in my GC).
The best way around it for many of us here has been to de-activate the security system completely, and it's pretty simple to do. There's a purple wire with a yellow tracer in the driver's side kick panel, just ground it and your security problems will be over.

Now, I'm not sure that it's the security system causing your current problem. But it's not a bad idea to get rid of the SS anyway, mine was nothing more than a PITA until I got rid of it.
CrazyIvan888 is offline  
post #3 of 7 Old 12-03-2009, 10:47 AM Thread Starter
Samson007
Registered User
1994 ZJ 
 
Join Date: Dec 2009
Location: Denver
Posts: 15
PITA!! thats what this SS is.!! I will definately dis-connect it! thanks!

no ideas on the not starting huh? It almost sounds like a fuel pump failing. Cause it's turning over, it just wont fire.. Hmmm.....???
Samson007 is offline  
post #4 of 7 Old 12-03-2009, 01:59 PM
CrazyIvan888
Registered User
1993 ZJ 
 
Join Date: Jun 2009
Location: Wisconsin
Posts: 649
Yeah, could be a fuel pump. But my fuel pump gave me lots of warning before it went out.

Could you have maybe blown a fuse somehow when you installed the new battery? Check all your fuses to make sure. Also, the fuel pump relay may have gone out. It's in the power distribution block, right behind the battery. I tested my relay and pump by disconnecting the incoming fuel line from the injector rail and turning the key on for a second. If the pump and relay are good, fuel will come shooting out of the disconnected line. (I'm sure this is not the recommended procedure, but it worked for me.)

If no fuel comes out of the disconnected line, then check the relay itself by pulling the little plastic cap off of the relay and manually pushing the contacts together. If this produces no fuel pressure, your pump is probably bad.

Once you've verified that the pump and relay are good, check to make sure you're getting spark to the plugs. No spark and no fuel usually points to a bad Crank Position Sensor (CPS).

Hope this helps,
CI888
CrazyIvan888 is offline  
post #5 of 7 Old 12-03-2009, 02:40 PM Thread Starter
Samson007
Registered User
1994 ZJ 
 
Join Date: Dec 2009
Location: Denver
Posts: 15
Yes! that helps ALOT!!
I will be working on it tonight.. First, I'll dis-engage the security system. Then I'll be trouble shooting the starting problem.
Unfortunately, it's like 12deg out right now here in Denver. It should be about 0deg - 5deg tonight after the sun goes down.
Thanks for the help!!
Samson007 is offline  
post #6 of 7 Old 12-03-2009, 04:15 PM
Trae
Registered User
1994 ZJ 
 
Join Date: Sep 2009
Location: Texas
Posts: 1
Had the same issue with my 94 while it was in the shop - the mechanic was ready to start tearing things apart- for the extra money I'm sure! Got to looking around online and found others with the same issue. Followed someones advice and stuck the key in the back door and turned to the right twice - you will hear the security system beep at you if that is the issue. This is some sort of reset for the security system. Fired right up! Never had another problem with it, as long as I unlock the drivers door first. Anytime the battery gets disconnected, I just have to do it again! I prefer to keep the security system in tact - at least I know no one else is gonna get away with my jeep!

Last edited by Trae; 12-03-2009 at 04:20 PM. Reason: add more info
Trae is offline  
post #7 of 7 Old 12-03-2009, 04:17 PM Thread Starter
Samson007
Registered User
1994 ZJ 
 
Join Date: Dec 2009
Location: Denver
Posts: 15
That is crazy!! I will try it first thing this evening and let you know tomorrow.
Thanks!
Samson007 is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
Security System unclerojelio ZJ Grand Cherokee Forum 5 04-12-2008 01:00 PM
Security System jdjeep ZJ Grand Cherokee Forum 2 06-27-2007 06:32 AM
ZJ- Security system key fob ? TankerSki ZJ Grand Cherokee Forum 4 05-24-2007 03:46 PM
Security system?? HELP!!!! Booger32907 ZJ Grand Cherokee Forum 11 04-10-2007 01:58 PM
Security system issues LivesIn10sly ZJ Grand Cherokee Forum 9 11-03-2005 08:54 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome