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SUVs Jeep Cherokee and Jeep Grand Cherokee Jeep Grand Cherokee Electrical Problems
208 messages, Last post on Nov 23, 2009 at 9:03 AM
You are in the Jeep Cherokee and Jeep Grand Cherokee Forum. Your Hosts are steve_ & tidester
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| I have a 200 jeep grand cherokee that has gone nuts. first the pcm went bad and we fixed that with no problem. but now everything is nuts. I can't communicate with bcm, windows don't work from any door, overhead console won't display numbers at all, a/c will not turn on, instrument cluster goes crazy every now and then, and sometimes vehicle dies as if you just turned it off. it always restarts but will eventually do it again. any ideas anyone. | |
| I have traced the wiring harness with a fault finder from the condenser to the fuse block with no shorts detected. I have also replaced the TSP and crankshaft sensor. It mostly happens when it's hot outside (above 80). I can't get it to replicate all the time, but when it happens, I can consistently get it to die when I turn on the AC or defrost. Won't stall the engine with the blower on by itself. Changed the relays and checked fuses and it still stalls. I think it's narrowed down to the AC (automatic climate control) head unit or the PCM. Any ideas? | |
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Replying to: eviljeeptsi (Aug 13, 2008 7:10 am)
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Replying to: jhuston (Sep 10, 2008 8:47 am) Thanks for the tip, maybe this will help. Oh yeah, and I hate jeeps now. I do love the 318 V-8 thats in it, so much power and wont get stuck anywhere. But I have had two jeeps now with these strange electrical problems. Sad to say, but I am done with Jeeps after this.
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 Thanks to all for the input above: All the panel warning lights were intermittently lighting up for a few seconds, then going back off. Thanks to what I've read here, it was easily fixed by cleaning the battery posts and cable terminals and tightening them down well. (2005 Grand Cherokee 3.7L) 
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In the last few weeks I have had several incidents of my jeep just turning off when I am in the middle of a turn. I have to put it in neutral, then turn the ignition and it just starts right back up. It has only done this while I am in the act of turning. Luckily it has only occurred when I have been slowing down - like turning into the garage or pulling into a drive thru lane. This issue started right after I had the dealership change out the battery (since I couldn't find the battery at any of the local part stores). Could it be possible that something happened during the battery installation that would cause this or is it just coincidence?
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Replying to: andyman74 (Apr 30, 2008 12:10 am)
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Replying to: lilwen13 (Sep 17, 2008 6:25 am)
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Replying to: lilwen13 (Sep 19, 2008 9:41 am) when i have helped anyone with eletrical prob i have then change the battery on any of the newer cars as computers are real touchey on volts (you put a serge protector on your computer in your house to smoth out serges dont you) weak battery will charge in serges computer dont like that |
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Replying to: morrest1101 (Jun 18, 2008 3:03 pm) did you manage to fix your problem? I am having similar problem on my Jeep Grand Cherokee 2000yr. When you open or lock the car the hazardlights dont flash, once inside the lights dont turn off, the windows dont work, the memory seats dont work because it says the belt is on but its not, the belt light stays on. if you could help me please let me know thanks |
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