Question about 2000 Jeep Grand Cherokee

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Anti theft light flashes and kills vehicle

My jeep turns over just fine. Then the anti theft light starts flashing and kills the vehicle. Does anyone know what is causing this to happen?

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It doesn't recognize the key being used. It may be a faulty transponder in the key or a bad module that reads the key. If you have a second key give it a try. If you have the same result than the SKIM module may be at fault.

Posted on May 27, 2009

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I had the same problem and it turned out that I had hit the key fob accidentally, while in the car. I just had to hit the unlock button on the key fob. I hope this helps.

Posted on May 30, 2009

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99 explorer alarm disables. Motor dies


Anti-theft system can keep vehicle from starting , Alarm is for vehicle content theft , open door without key alarm sounds (horns) ! PATS - passive anti theft system PATS enables and disables the engine from starting ,it will not cause the engine to die ! You have some other kind of problem ! If the vehicle engine doesn't turn over an red light on top of dash flashes fast ,then you have anti-theft system problem !
PATS differs from the perimeter anti-theft system in that PATS enables and disables the engine from starting. If equipped, the perimeter anti-theft system protects the perimeter of the vehicle (doors, hood and trunk) and sounds an alarm.

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If the anti-theft light is flashing, I would think it is a problem with the key or the anti-theft system. The system would kill the power to the fuel system.

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I am having toruble with my imobiliser on my fiesta van 1.8td as it wont crank over and the red led light by the clock display flashes as normal with ignition off and as soon as i turn the igniton on the...


you have problem with the anti theft sistem of the vehicle and you wont be able to start your vehicle with that key. you can try to start the vehicle with the other key but if the anti theft light is flashing fast with both keys you will have to send the car to the dealer for service

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My theft light is flashing but my 1997 expedition wont start.The vehicle turns over but just don't start.


ANTI-THEFT SYSTEM Passive anti-theft system
Your ignition key has a unique imbedded transponder which engages engine electronics and allows the vehicle to be started. Without the use of your special ignition key, the vehicle will not start.

During each vehicle start, the coded key is read by the anti-theft system. If the key’s ID code matches the code in the anti-theft system, the vehicle is enabled to start.

Anti-theft system
Briefly illuminates when the ignition is turned to the ON position to verify that the passive anti-theft system is operating properly.

Also, its possisble that tou have actovated the fuel pump switch.

CHeck it.

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1999 Grand Cherokee Limited Jeep anti-theft system had shut all electronics down and engine will not start. what can I do to reset the system....


The 1996 Jeep Grand Cherokee Laredo Anti-Theft System is equipped with Vehicle Theft Security System (VTSS). VTSS system monitors vehicle doors, hood, liftgate and ignition. If an attempt is made to enter or operate vehicle without proper disarming of system, vehicle horn will sound, headlights, taillights and parking lights will flash, and engine will be prevented from running.

The following wiring diagram and electronics circuit contains detail schematics of The 1996 Jeep Grand Cherokee Laredo Anti-Theft System. Herein you will find interconnection between electronics parts of the system such as body control module, auto headlamp light sensor. VTSS led, driver door module, passenger door module, cylinder lock switch, junction block, power distribution center, and grounding. Herein you will learn also how the Vehicle Theft Security System works, removal, installation, testing and troubleshooting procedures.

Try HERE.

Also, remember that here can find the Jeep Grand Cherokee Service & Repair Manual.
Hope help with this.

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So like an anti theft system, See if you have a kill switch or button for anti theft

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Anti-theft


if the vehicle starts then stops and the anti-theft light is flahing you may need to re-set the pass-key system to do this you will need to atempt to start the vehicle and when it stalls leave the key in that position and watch the anti-theft light. it should flash on and off for about 5 to 10 minutes. when it stops flahing turn the ignition to off then try to restart your vehicle

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