I just swapped out my TC for the 249 and had to take out my VIC to swap the red and black wires. I figured while the VIC was out I would pop it open and try to get rid of the annoying beeps. The solder joint didn't even look bad but I re flowed them and sure enough it worked! Thank you for the awesome write up!!!
My first soldering and my first post on Jeep forum!
I'm afraid to speak too soon, but I did this and it seemed to work. Normally the code pops up as soon as I turn on the jeep, and if not soon after. I did a test cruise and so far so good.
Too bad I followed logic at first and replace both coolant sensors.
All together I got it done in about an hour, including a break to scratch my head over the circuits parts. I don't know what to look for as far as faulty soldering jobs, but everything looked pretty uniform. I went over it anyway and here we are. And as far as the clip, push the passenger side toward where it normally sits, and pull near the VIC. It was pie on mine.
If the message pops back up tomorrow on my way to deliver sandwiches freaky fast, I'm going to jump through my windshield.
Thanks again to the OP and all the great info in this thread. Reflowed the solder joints on the VIC, problem fixed. Damn, that thing was driving me nutz. Still need to swap the plugs for the TC swap we just finished. Props. Thanks again!
Great write up Thanks!
Since I usually solder with a bernzomatic tourch (or at least it looks like I do) I opted to pick up a used VIC before trying the fix. Pluged the used unit in & like magic the 'coolant sensor bad' & 'service 4wd switch' warning messages went away........for a week! Now the 'coolant sensor bad' message is back but instead of the display showing the lighted line by the radiator, it now displays a retangular light in the engine compartment. I was told the replacement unit came from the same year & trim level as my 1996 Grand Cherokee Laredo. Anyone run into anything similar?
I just finished soldering the original one but haven't tried it yet.
Black 1996 ZJ 260,000 mi & running strong
Black 2006 KJ 121,000 mi just getting broken in
UNBLIEVABLE!! Great write up Great pics.problems gone!! Can anyone help with the heater control head unit I pulled it out and when I put it back in the leds that indicate where the air is directed arn't lighting up all I did was unplug it and plug it back in and they wont light everything else in the head unit works fine anyone???worked before I removed it!!Thanks
I'm really new to this site. Thank you guys for the outstanding support on just about every issue a person could encounter. I'm going to attempt this soldering fix. It appearing more time consuming than anything. Working and the single digit temps are slowing me down a little. Eventually I'll get to my sensor problem. I also have what I feel is my wheel bearings going bad. I assume these are just like any other bearings r and r. If there is any other special things I should know, please hollar at me. Thanks for everything.
Just bought a 98 ZJ Limited with this problem. Previous owner said they had the sensor replaced and checked out. Mechanic couldn't figure it out....guess he didn't GOOGLE the issue. 30 minutes later, I've got the issue fixed, thanks!
I'm here because
my little girl
doesn't need her dad
on two wheels anymore!
Camoflauge, camoflauge, I disappear when I pull out of my garage!