I have a 99 Jeep Cherokee Limited. Here are my symptoms; Sometimes all of my dashboard functions fail, CD player, windows, heat, etc will all shut down. I can play with the automatic lock button and get them to work again only to have to lose all functions all together sooner or later. I haved learned through trial and error that I can take all of the fuses out of 'socket' and put them back in right away and everything works perfectly. 90 percent of the time I hear a clicky noise directly under the passenger side automatic lock, like some kind of switch. I also have replaced my passenger brake light several times over the last year but don't know if that is related. Any suggestion? Here is what has been supposidly ruled out so far: ignition switch, fuses, battery, connections. Thanks!
It seems no one has solved this puzzle yet, but I'll give it a shot of my own. Any thoughts will be greatly appreciated.
'97 Grand Cherokee Laredo, 135,000 miles
Various warning lights
Power comes on at night
Instrument cluster & gages haywire
Stalling
Dead battery overnight
Feedback in speakers
Repeatedly blown 20A fuse on engine fuse block
Turns over, but now won't catch
Replaced: Ignition switch & ignition cylinder block, cam sensor, throttle position sensor. Cost: $750
Tried: new battery, unplugging PCM computer, checked all fuses.
And the alternator checked out all right.
Any ideas?...the dealer in stumped. (replacing the PCM computer seems to only have a 50% success rate)

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