Question about 2002 Jeep Grand Cherokee

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I have a 02 jeep grand cherokee laredo that will not start. It cranks like the battery is fine. I think it has something to do with the security system. It has a solid yellow key with a strike through on the dash. I have tried disconnecting the negative terminal to the battery then reattaching to maybe reset the computer but still nothing. Everything has worked ok until this point and the dealer said possible security module. Is there anything else I can try before towing?

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I have a dodge nitro that has a factory security, but you dont hear the engine crank.. try pressing lock twice on the key remote then unlock twice then turn the key.

Posted on Jul 13, 2010

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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.

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