Jeep grand cherokee immobilizer diagam

Question edited for clarity.
Question moved to model category.

The security alarm and engine immobilizer are functions of the Body Control Module (BCM) and the ECM. You can't just pull fuses. When the battery goes completely flat, or is disconnected, you just need to reset the Security System which is done via the Remote Fob.

https://www.google.com/search?q=jeep+grand+cherokee+security+reset

Jeep Grand Cherokee (WJ; 1999-2005) fuses and relay

Fuse Box Diagrams https://fuse-box.info > jeep > jeep-grand-cherokee-wj-...

Here you will find fuse box diagrams of Jeep Grand Cherokee 1999, 2000, 2001, 2002, 2003, 2004 and 2005, get information about the location of the fuse panels ..

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Generally, I warn against bypassing immobilizers. You need the key fob for the doors though. The door fob is part of the security system.

https://itstillruns.com/reset-grand-cherokee-reset-antitheft-7492453.html

There are various ideas here

https://www.google.com/search?q=2000+jeep+grand+cherokee+immobilizer+reset

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Question edited to what I think you meant to say, and get rid of the 'run-on' sentence.

You need to reset the security system because you disconnected the battery which powers the immobilizer.

Press the power door-lock switch on the keyless entry fob. Close the driver's side door. Leave all doors closed for about 16 seconds until the Vehicle Security Light on the instrument cluster stops flashing quickly. When the light flashes at a slower rate, this signifies that the system has been reset and rearmed.

How to Reset the Immobilizer on a Jeep Grand Cherokee and ...

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You can't bypass alarms and immobilizers. They are there specifically to stop what you are trying to do. You have to fix the problem, not find a way to beat it. You need a transponder in the key (a chip) and you need that key reprogrammed. You need the fob.

To reset the Jeep Liberty alarm, press the control door-lock button on the keyless entry fob. Open the side door of the cab. Leave all doors closed for around 16 seconds before the Vehicle Security Light on the instrument cluster starts blinking quickly.

How do i reset the Jeep Liberty alarm? - Vehicle History

Having said all that, you can try these

https://www.google.com/search?q=2003+jeep+liberty+immobilizer+bypass

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skim is failing
you need tools to fix skim.
the car came with 2 key fobs, are both failing>?
try both.
if only one key , you already lost the battle.

http://www.fixkick.com/Jeeps/SKIM.html

See if this helps.
FIXYA Link
BTW, I'm not sure you can do it without the FOB

The key fobs have failed take to the dealer they would have to replace the key fobs don't try to start it more then 3 time or it will lock out for 1 hour.

If ithe alarm is factory when they will have to reset the alarm module with a scanner. If the alarm if aftermarket go to the control module and see if it has a reset button. FOBs (remote) can reset alarm. You Jeep is always set for break-in mode. The FOB sets this when ever the FOB is used to lock the doors. May be bad alarm module - Sorry - Good luck

do you have another immobilizer key?if not,try pulling IOD fuse in fuseblock..resets skim module

did you try calling a dealer sometimes they are the only ones that can reprogrm these things