Question about 2000 Jeep Grand Cherokee

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Alarm killed the engine cant start dealer says its the pcm but the key light is on? tested the pcm came back fine still wont start checked all the sensors and replaced a few and nothing? thinking its the immobiliser the light goes off when its unplugged but still nothing?

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I have an immobilizer in my 1999 Ford Expedition. If you unplug it and put it back and led will go on and off and blink.

Once, I bumped it and couldn't get it started.
I removed it replugged the fob in and it started right up.

The security system on your car may be different than mine, but I'm just trying to help.

Good luck on it.

Posted on Jul 12, 2010


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