Question about 1993 Jeep Grand Cherokee

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Factory security system won't allow car to start

When I try to start car, security system will not allow the car to turn over. If I get out re-lock the doors, open the door with key and try to re-start it works sometimes. Other times I have to jiggle the gear shift, other times I have to disconnect the battery cable and re-connect. Now none of this is working. The security system is factory installed by previous owner. An automatic car starter was also previously installed and then removed. I bought this car used with 200,000 miles.

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Do you have a remote? sometimes when you have remote unlocks and lock with the remote and try to unlock manually(with key) the security system "thinks" its being picked and will not allow the vehicle to start or run.

if problem still occurs let us know and we will gladly get you through this

Posted on Feb 19, 2009

  • tilda doscher Dec 19, 2012

    this is happening to my car, also. If i unlock with the key instead of the remote, the whole system locks and will not start until i use the remote to lock and unlock the car

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Try this:

FIRST try a different key if you have more than one for the vehicle. I have had cars towed into my shop simply because someone was trying to use a cheap duplicate key that was cut at the hardware store. These keys are fine for the doors and trunk. They are great to have around in case you lock your keys in your car. However, they do not have the electronics built into them to allow for engine starting.

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