Question about 2000 Jeep Cherokee

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Last month my immobiliser started playing up: When I'd turn the key in the ignition the 'immobiliser lamp' stayed on and I was unable to start the car. I've owned this car since 2003 and this had never happened before.(NOTE: the lamp was not flashing as it does when the wrong key is used). After I turned the key back and on again the light went off again and I was able to start. Hmmm...I adapted to that but then one night my trick wouldn't work and i was stuck, unable to start my car. Only after disconnecting the battery and 'resetting' the computer could I drive to the nearest Jeep repair shop. There some part was repalced and they got me a new key, all for $750 (that's Aussie dollars). Driving off the premises of the repair shop all looked fine. The following week the problem reocurred as if nothing had ever been repaired. Going back to the Jeep shop they told me that I 'probably' needed to have the "PCM" replaced which would cost me about $2500. I had a feeling they were a little bit clueless and were happy to keep doctoring on my car until they have learnt something new about Jeeps. It seems to me the first repair might not have been necessary but the mechanic insisted it was. In terms of results it is as if nothing was repaired. I'd be very grateful for any ideas/shared experiences with this sort of problem? Thank you!

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Have you got remotes for this car, as im not all together on Aussie jeep specs,if you have, try resetting the immobiliser/alarm system,(remotes have 2 codes,1 fixed,1 rolling,every time you unlock the car with the remote the rolling code changes,so when the key is inserted it is only partly reccognised.....hope this helps.

Posted on Jun 02, 2010


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