Issue with alarm - JeepForum.com
 
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post #1 of 5 Old 01-23-2020, 10:36 AM Thread Starter
Promostitch
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2005 WK 
 
Join Date: Mar 2016
Posts: 20
Issue with alarm

Hi, I wonder if you can help me with what seems to be an alarm issue. For a while now, and slowly getting worse, when I lock the car, about 15 seconds later the alarm sounds, and the indicator lights flash. I can usually unlock, then re-lock the car from the fob and it then be OK, but it is getting worse and requiring more locks and un-locks depending on how it is feeling.

At first I thought it might be due to the rear glass flipper switch as this had been bad for sometime, but I have now replaced this with a brand new switch, and the problem still persists. I also lubricated the bonnet switch as this was getting slightly stiff, but again the same issue.

When I open and close any of the doors, bonnet, rear hatch etc,. I can see the info screen tell me which is open, and closed, so I don't think it is any of the switches that is causing the issue. When I lock the car, I can see the red light in the dash cluster flashes for about 2 seconds, then goes solid for about a further 10 seconds - as soon as it goes out, the alarm sounds, and the indicators flash.

The only saving grace is that slowly the alarm sound has got quieter to the point that it now makes no sound at all, but the lights still flash, which is a pain when I leave the car parked, and don't want to flatten the battery.

It is an 05 5.7L RHD UK Jeep with 78,000 miles. Any help with pointing me in the right direction to get this resolved would be very much appreciated.

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post #2 of 5 Old 01-24-2020, 10:50 AM
mjp83
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2011 JK Wrangler 
 
Join Date: Jan 2007
Location: Pinehurst, NC
Posts: 395
Hi,

At first I thought maybe you just need a new key fob battery. But the fact that the alarm goes off exactly when the light goes solid means that it is arming, and during that time the Jeep computer notices a security fault and triggers the alarm.

So my guess would be again, door switches. There must be some electrical current drawn on the system to trigger. I can tell you that our alarm did not go off with a recent parasitic drain of the battery, caused by the little glove box lamp, which decided to remain on!
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post #3 of 5 Old 01-27-2020, 02:38 AM Thread Starter
Promostitch
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2005 WK 
 
Join Date: Mar 2016
Posts: 20
Quote:
Originally Posted by mjp83 View Post
Hi,

At first I thought maybe you just need a new key fob battery. But the fact that the alarm goes off exactly when the light goes solid means that it is arming, and during that time the Jeep computer notices a security fault and triggers the alarm.

So my guess would be again, door switches. There must be some electrical current drawn on the system to trigger. I can tell you that our alarm did not go off with a recent parasitic drain of the battery, caused by the little glove box lamp, which decided to remain on!
Thank you very much for your reply. I hadn't given the glove box a thought, so will take a look at this.

Although I don't think the doors are causing the issue, I couldn't see where the switches are - I was expecting some regular plunge type switches (like is under the bonnet) on the inside edge of the doors, but couldn't see anything obvious. Can anyone tell me where they are please?
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post #4 of 5 Old 02-03-2020, 10:06 PM
colinzj
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2006 WK 
 
Join Date: Mar 2005
Location: Chandler, AZ
Posts: 1,776
Quote:
Originally Posted by Promostitch View Post
Can anyone tell me where they are please?
On your Jeep and most newer vehicles, the switches are now part of the door latch itself.

2006 WK Laredo 4x4 4.7L
1993 ZJ Laredo 4x4 4.0L — Dead, sold, and rolling again
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post #5 of 5 Old 02-04-2020, 09:37 AM Thread Starter
Promostitch
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2005 WK 
 
Join Date: Mar 2016
Posts: 20
Quote:
Originally Posted by colinzj View Post
On your Jeep and most newer vehicles, the switches are now part of the door latch itself.
Many thanks - I will take a look at those too.
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