Question about 2001 Jeep Grand Cherokee

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2001 Jeep Grand Cherokee - Security Key Flashing/ Wont Crank after dead battery

I have a 2001 Jeep Grand Cherokee Laredo. Has always ran fantastic with no problems. The jeep has been parked for over four months with no activity. The battery was dead so I have replaced it. Now when I try to start it the security light comes on and stays on, I know it is full of gas but all the gauges stay at zero. Have tried disarming with the keyless which unlocks the door but when I go to start it the flashing key with the line through it icon pops up and stays on and it dings at me. I know I have the key with the smartchip in. It cranks and cranks but will not start. Thanks for any Help. Dana In NC

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  • Dana Williams May 03, 2013


    Any thoughts would be greatly appreciated!

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With security key flashing (if that's theft deterrent) , I think only a dealer can re-program the processor, and enable your car to start..

Posted on Apr 22, 2015

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A flashing key symbol normally means an invalid key. Do you have an other key to try? That all the gauges stay at 0 seems to point to a PCI data bus problem. Was the jeep parked outside or at least standing in the rain? Many times water ingress in connector C200 up in the passengers footwell area is the problem. The connector must be removed, cleaned/dried and reconnected. Ofcourse the source of the water ingress must be found, which many times comes from the windshield.

Posted on Feb 06, 2015

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