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  #13  
Old 08-11-2010, 03:45 PM
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Re: 06 Grand Cherokee - Electrical Problem wih Dash Cluster

Good idea on the battery. It's less than a year old but things sometimes die young. When the old one died the dash lit up like a Christmas tree.

I forgot to mention the AC blower stopped momentarily too when all the lights blinked out. That's why I was thinking ignition switch vs. light control stalk.
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  #14  
Old 08-11-2010, 04:02 PM
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Re: 06 Grand Cherokee - Electrical Problem wih Dash Cluster

this is a suggestion coming from a guy who just solved some other electrical problems that I was experiencing on my WK

clean out the contacts to the PCM and the wiring harness right behind the fuse boxes located on the drivers side of the engine, take them apart get some dielectric cleaner spray it liberally get a wire bursh and clean those puppies out let them dry over night and try again and see if the problem still exists ... all my deathly problems have gone away since
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  #15  
Old 08-15-2010, 02:18 PM
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Re: 06 Grand Cherokee - Electrical Problem wih Dash Cluster

Well I cleaned the battery posts and terminals, cleaned the pins on the connector block by the fuse/relay boxes under the hood, remounted that connector (looks like the dealer pulled it loose and didn't remount it, cleaned both connectors by the fuse block under the dash, and cleaned the ignition switch connector. So far, so good. It's been two days and no more dash blackouts...
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  #16  
Old 08-16-2010, 06:06 AM
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Unhappy Re: 06 Grand Cherokee - Electrical Problem wih Dash Cluster

Update 2010-08-16 07:01

Met with dealer service manager (again for 7th time) and the dealership has Jeep now and is investigating the electrical problem with dash cluster. They have said previously that they cannot duplicate the problem. Even after a ride on many major roads with service manager and technician. I mentioned to them both that cleaning contacts and connectors would be a very good idea. I seriously hope that they try that approach as well.

It seems like the wiring harness is the next on their list but only if Chrysler/Jeep will pick up the tab. (see above prev threads for history of parts already replaced with no success).
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  #17  
Old 08-18-2010, 08:06 AM
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Re: 06 Grand Cherokee - Electrical Problem wih Dash Cluster

5 days now and still no more problems. Architect, I'd definitely make sure they've cleaned contacts. The connector blocks under the dash on my WK felt especially "crunchy" when I unplugged them making me think there was some corrosion there.
Best of luck my friend. I know these kinds of issues are very frustrating...
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  #18  
Old 08-28-2010, 11:43 AM
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Re: 06 Grand Cherokee - Electrical Problem wih Dash Cluster

Update 2010-08-28 10:24

Hello again. I am here with good news (but with an "asterisk" *).

As of this week I can report that , so far,
my electrical problem
" 06 Grand Cherokee - Electrical Problem with Dash Cluster" has been solved (*).


After many components being replaced and, with 20/20 hindsight, we now know that some of them were probably OK, but it was difficult to know at that time.
  • Front Control Module
  • Steering Control Module
  • Shift Control Module
  • Ignition Power Module
  • Ignition Switch (2x)
  • Fuse Block


The last effort by the "team" looking into this problem was the big one:
the wiring harness.

The team included:

Dodge/Chrysler/Jeep dealer (local) --- Service Director
Dodge/Chrysler/Jeep dealer (local) --- Senior Electrical Technician
Dodge/Chrysler/Jeep dealer (local) --- Service Adviser
Chrysler / Jeep (Detroit corporate) --- Customer Service Representative
Chrysler / Jeep (Detroit corporate) --- 5 star Engineering Support
and lastly... --- myself

After all the above components being replaced and the same initial electrical problem still there, it was obvious (to me anyway) that we never found the source of the original problem. All the previous repair efforts have to be credited to a best educated guess. So, the last attempt at repair was to replace two (2) wiring harnesses: one forward of the firewall and the other in the cabin.

NOTE: it took considerable effort to persuade the Jeep Corporation to replace these components. Many phone calls were made and a lot of coordination and frankly many hours of normal business day working hours were needed to accomplish this. Many thanks to my company for being so tolerant of this saga as we called it. Some things just can’t be accomplished nights and weekends.

So… the two harnesses were replaced and now after a few days, (queue the heavenly chorus) and so far, no problems are occurring. Though, the final verdict is not in yet, it seems to be fixed. I told the dealership service department, that I will be closely monitoring this and it is not over till, quite frankly, many months of good performance.



Bottom line today: FIXED BUT NOT CASE CLOSED

An observation just after repair is that I think my Jeep GC is running better and smoother than when I purchased it from the Jeep dealer (used with 29k). I am now over 80k and the last few days I feel that the Jeep is running so much better and that I am now thinking that this electrical problem was there from date of purchase and just took a little time to reveal itself. If the problem was there at the beginning it makes me wonder whether the original owner noticed the irregularities and just maybe wanted to trade it in. Mechanical problems are one thing but electrical problems are and can be a nightmare.

If anyone out there is having similar electrical problems and it is pointing at "this module" or "that module", and they are replaced and the problem still occurs... then go straight to the wiring harness, albeit not an inexpensive way, but it may just solve the problem(s).



Regards,


Architect

Keith


* the asterisk represents the fact that this final fix was an expensive one and probably not easily achieved by one with less training than a factory trained technician.
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  #19  
Old 08-28-2010, 11:50 AM
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Re: 06 Grand Cherokee - Electrical Problem wih Dash Cluster

congrats!
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  #20  
Old 01-03-2011, 10:40 AM
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Re: 06 Grand Cherokee - Electrical Problem wih Dash Cluster

Hi Keith,
Can you tell me specifically which harnesses you had replaced? I have had dash and radio light flickering off and on for almost a year now. My battery tested fine, and I replaced the ignition switch (which seemed to alleviate the issue for about a month, but then once again, returned). Thanks for any info.
Mike
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  #21  
Old 02-20-2011, 01:12 PM
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Re: 06 Grand Cherokee - Electrical Problem wih Dash Cluster

Hello Sandman,

i had the same problems on my ´06 srt8 GC but it was´t the harness. It was a part behind the ignition-key. The Part-No. ist 04685719AG. It costs about 50 $. After the changing i never hab problems again. The information is from a german jeep-forum. There where also many cars with the same problem, after changing this part the problems where gone. Greetings
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  #22  
Old 02-20-2011, 02:42 PM
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Re: 06 Grand Cherokee - Electrical Problem wih Dash Cluster

Quote:
Originally Posted by Stukki View Post
The Part-No. ist 04685719AG...
The above part is the ignition switch. It is now superseded to 04685719AH. MSRP is $44.20.
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  #23  
Old 02-23-2011, 10:11 PM
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Re: 06 Grand Cherokee - Electrical Problem wih Dash Cluster

Quote:
Originally Posted by Architect View Post
Hello all,

I have a 2006 Jeep Grand Cherokee Laredo with 80k+ miles. (Bought it used at 29k miles). I have been experiencing random electrical problems. The symptom is that the all the lights and gauges on the dash cluster go on and off erratically and sometimes stay off for a few minutes. This also includes the A/C system. As the gauges go off so does the A/C fan...

Been having these same problems all winter... hope your solution is still working for you, thinking bout trying it myself.
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Old 04-27-2011, 01:31 PM
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Re: 06 Grand Cherokee - Electrical Problem wih Dash Cluster

Hi Architec- I read all your entries on your Jeep Laredo and I am having the same EXACT issue. I have had the ignition switch replaced and 9 months later I am experiencing the same problem once again. Was your problem fixed..andif it was, what was the final solution?? Jeep has my car as we speak and I don't want to go through the same issues as you. Hopefully you were re-imbursed for some of your charges!!
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