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Go Back JeepForum.com > Models > Jeep Grand Cherokee & Commander Forums > ZJ Grand Cherokee Forum > "Coolant Sensor Bad" FINALLY FIXED!!!!

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Unread 08-03-2011, 08:56 AM   #76
almonet
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I have a 97 and saw everything described. Thanks for the cash free fix!

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Unread 09-04-2011, 12:22 PM   #77
t0ast3d
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Fixed the VIC for free. Working like a champ!
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Unread 09-04-2011, 12:55 PM   #78
jonathaneugene
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Quote:
Originally Posted by jonathaneugene View Post
I feel big pictures are warranted for this...

Here's what I found:


Here's what I did about it:


After two car starts the message hasn't come up. It might be a bit premature to say the "coolant sensor bad" is fixed, but the outcome looks promising.

It might also be worth mentioning that I didn't remove the plastic that is above the glove box as to do such requires the drilling out of two rivets. I just didn't want to deal with that. Carefully pulling back the VIC plastic with all of the other trim removed worked for me.

Finally, to all the noobies out there, take heart in knowing that this was my first soldering project. If I can do it, you likely can too
It's been over a year now, and still no problems with the VIC. I'm considering this a permanent fix.
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Unread 09-04-2011, 03:23 PM   #79
ZJJay
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Thanks a bunch for the follow-up and especially the photos. My ZJ has been doing the same thing for over a year. I've added this fix to my "To Do" list.
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Unread 09-29-2011, 11:58 PM   #80
SteveOuthwaite
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Firstly, sorry for the zombie thread resurrection. Not a good start for my first post here i know, but I am compelled to say something.

Quote:
Originally Posted by phild328 View Post
This is for a 96 Grand - others may be different or not.....
I cannot tell you how happy you have made me. 2 days after buying my Grand Cherokee and I'm plagued by beeps. I was a bit pissed off because the bloody thing was fine on the test drive. Anyway You described the problem exactly. Cracked solder joints on pins 1 and 2 on the connector. Now I'm all beep free.
For the record mines also a 96 and it was 3.3kohm on the raised sensor and 0 ohm at the low coolant level.

Now all I've gotta fix is the heater hot-air-mixer flap thing and the heated seats before the winter comes.

Thanks from Norway
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Unread 10-10-2011, 12:39 PM   #81
Evilsage
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drudging up old threads is a great way to fix a problem, just finally found 2 hours to pull apart my dash and there were a couple broken leads on the VIC this thread helped immensely Thank you so much for all the great info!

This fix has made my brake light and coolant sensor stop lying to me!
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Unread 10-28-2011, 03:41 PM   #82
Azalin_00
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VIC Fix

Anyone in the Houston area want to fix this for me? I got $50 in it for ya.lol But seriously, pm me.
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Unread 10-30-2011, 12:21 AM   #83
97CherokeeSport
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Alright guys first of all my problem, seconds of all, how do I make a new thread?

Problem 1: I have a 1997 Jeep Grand Cherokee ZJ 4.0L with two stupid beep warnings from the VIC. One says "Coolant Sensor Bad" and the other "Coolant Level Low". What could be the causes of this? I was thinking of getting new sensors but who has $200 just for that? I was also wondering can the "pink with black stripe wire" be a cause of both the beeps or just the "Coolant Sensor Bad" one? How about the sensor in the resovior for "Coolant Level Low" beep?

Problem 2: I also have a 1997 Jeep Cherokee Sport 4.0L with the double cooling fan setup. The Auxillary Electric Fan is constantly on, even when it's a cold start, it turns on the second it starts! The A/C or defrost is not turned on. I am wondering what would cause this to occur.





Thanks in advance!
Cole
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Unread 01-19-2012, 11:15 PM   #84
two98ZJs
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jonathaneugene, in your pic post #78, what did you do to pic 2 over pic 1? Best I could tell, was it re-solder the three connector pins far end? thks.
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Unread 01-19-2012, 11:25 PM   #85
Mickey_D
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Yes, that's exactly what he did.
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Unread 01-19-2012, 11:58 PM   #86
two98ZJs
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Thanks MickeyD, I wasn't aware VICs were repairable. My 5.2 LTD's VIC was dead for about five years and last spring I ordered a new VIC. Been working great since, it tells me to ck the tail bulbs, not pulling enough amps with the LEDs.
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Unread 01-20-2012, 12:26 AM   #87
hdrocknroll
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Load resisters would fix problem with the LEDs.
One resistor is required for each light bulb
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[QUOTE=rooster51;13297693] Whats the worse that can happen? Your jeeps already broke.



[/QUOTE]
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Unread 01-20-2012, 07:35 PM   #88
two98ZJs
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Thanks HDrockNroll, I'll add the four resisters as required. I opened the lower tail lens chamber and added matching light sockets on both ZJs. They are both OEM stockers, mallCrawlers.

Driving the LTD home Wed from a WallyWorld spire and noticed the VIC was reflecting the same clock time as the radio. Does anyone know if the VIC's clock time is set by the radio? I could not find a clock set option when I set the date on the new VIC.
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Unread 01-21-2012, 04:56 AM   #89
hdrocknroll
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Clarification, One resistor is required for each LED light bulb
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Unread 01-21-2012, 08:01 AM   #90
coralman
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If the radio has the ccd bus hooked to it the radio automatically sets VIC time.
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