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Unread 06-17-2010, 12:04 PM   #1
ALEXANDER666
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Immobiliser 1999 grand cherokee please help me please

Hello

COULD SOMEONE PLEASE PLEASE HELP ME

i have a jeep grand cherokee 1999

I came home from work yesterday, turned it off and this morning when I came out to go to work it won't start. When I turn the key it will try to turn over but it just won't start.

I noticed there is a key with a slash symbol lit up on the dash. I was told this is the anti-theft device in the car. I was also told there is a way to reset the key to the vehicle by using the key in a series of events like unlocking the door a number of times, etc. Was wondering if anyone had any idea how to do this?

i dont have the money for dealers

PLEASEEEEEEEEEEEE HELP ME

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Unread 06-17-2010, 12:09 PM   #2
ezflip
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Nope, no series of unlocking/locking or anything can help on a WJ. Some other chrysler models use that method, but not WJ's.

Unfortunately, your only option is to tow it to a stealership. Or, supposedly there are a few lock smiths that carry a DRBIII scan tool. If you find one, they can help you too.
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Unread 06-17-2010, 12:20 PM   #3
-Joe-
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Just curious why you automatically assume its the key?

Could be many other things..

First thing I would do is check for engine codes. Auto parts stores do it for free, but since it wont start try to get a scanner or do it yourself.

Might just be a bad sensor..

Jeep Grand Cherokee WJ - Diagnostic Trouble Codes

Look at the above link.
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Unread 06-17-2010, 01:30 PM   #4
ezflip
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Quote:
I noticed there is a key with a slash symbol lit up on the dash.
This is why he is assuming the SKIS is the problem...and he would be correct.
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Unread 06-17-2010, 02:17 PM   #5
skullysXJ
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Yeah it's def the SKIS. I bought my wj about 6 weeks ago and the guy I bought it from had a spare but I have the same problem with my spare it will unlock the car and all but it wont start it. Dealership or certain locksmiths are your options.
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Unread 06-17-2010, 02:35 PM   #6
Falkon
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If it's the key, it will start, run about 2 seconds and then shut off. The key symbol is always on during start.
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Unread 06-17-2010, 03:55 PM   #7
-Joe-
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Quote:
Originally Posted by ezflip View Post
This is why he is assuming the SKIS is the problem...and he would be correct.
Theres also a code thrown for this specific problem, pulling the codes would confirm this or not.
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'95 Jeep Grand Cherokee Laredo I6 4.0L
242TC - Extreme Engineering 2" Front Lift/1.75" Rear Lift - ES9000 Shocks + JKS BPEs
Moog Cargo Control Springs
Magnaflow Converter - Dynomax Muffler
235/75/15 AT Uniroyal Liberator Tires
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Unread 08-10-2010, 09:38 PM   #8
southstar
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Hi Guys - My GC immobilser has failed me on and off over the last 2-3 years - it really ticks me off.

Solution 1 - Remove the 50amp fuse from the enginebay fusebox for about 3-10 seconds, then replace it. That seems to work. Also seems to fix electric window winder issues.
Solution 2
It is RF related! Parking near shops that have auto-opening doors that seem to neutralise the Key Fob signal. It happened yesterday - I rolled the car away about 5-10 metres from the shop, pressed the Key Fob and bingo the immobilser de-activated and I was able to start the engine. Hope this helps.
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