Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here! ZJ (93-98), WJ (99-04), WK (05+)
All ZJ/WJ/WK specific tech questions asked here!

2011 JGC Complete power loss (jumped another car with cables on wrong)

Thread Tools
 
Search this Thread
 
Old 12-30-2015 | 10:41 PM
  #1  
jobin947's Avatar
Thread Starter
Newbie
 
Joined: Dec 2015
Posts: 5
Likes: 0
Model: Cherokee
Default 2011 JGC Complete power loss (jumped another car with cables on wrong)

Pretty simple. I helped someone jump their vehicle and they put the cables on wrong. When they started their vehicle, my horn beeped and the my Jeep shut down. Now it is completely dead. No power to anything. Almost like the battery itself is dead. I can't use my key fob, I can't do anything. I checked all the fuses and they seem good.
Old 12-30-2015 | 11:29 PM
  #2  
heathl's Avatar
Newbie
 
Joined: Dec 2015
Posts: 25
Likes: 0
Default

Have you tried unhooking your battery for a few minutes and reconnecting it? It might give it a chance to reset some stuff, just a thought.
Old 12-31-2015 | 01:09 AM
  #3  
jobin947's Avatar
Thread Starter
Newbie
 
Joined: Dec 2015
Posts: 5
Likes: 0
Model: Cherokee
Default

Originally Posted by heathl
Have you tried unhooking your battery for a few minutes and reconnecting it? It might give it a chance to reset some stuff, just a thought.
Yes, I did that. It did absolutely nothing. I must have fried a fuse that I cannot locate or just blew the computer.
Old 12-31-2015 | 01:28 AM
  #4  
andrewmp6's Avatar
CF Veteran
 
Joined: Jun 2011
Posts: 8,014
Likes: 16
From: Louisville,KY
Model: Cherokee
Default

Check all your fuses and relays if its not that your ecu is toast.
Old 12-31-2015 | 12:07 PM
  #5  
Fred/N0AZZ's Avatar
CF Veteran
 
Joined: Jul 2013
Posts: 7,554
Likes: 15
From: Monett, MO.
Year: 1999
Model: Cherokee
Engine: 4.0
Default

If they were not connected correctly how did the other car start? Just asking so the polarity must have been correct did you follow directions for your GC as to jumping other cars, as I don't it?
Old 12-31-2015 | 12:11 PM
  #6  
jobin947's Avatar
Thread Starter
Newbie
 
Joined: Dec 2015
Posts: 5
Likes: 0
Model: Cherokee
Default

Originally Posted by Fred/N0AZZ
If they were not connected correctly how did the other car start? Just asking so the polarity must have been correct did you follow directions for your GC as to jumping other cars, as I don't it?
The other vehicle started, after I reconnected it correctly, by just being hooked up to the jeep without it running. Like it was still able to pull power form the jeeps battery.
Old 12-31-2015 | 02:20 PM
  #7  
caged's Avatar
CF Veteran
 
Joined: Nov 2008
Posts: 7,874
Likes: 98
From: Northern Ontario, Canada
Year: 1990, 1999, 2000
Model: Cherokee
Engine: 4.0
Default

either a fusable link or you fried the computer.

i've seen both instances happen two different times.
Old 12-31-2015 | 02:56 PM
  #8  
jobin947's Avatar
Thread Starter
Newbie
 
Joined: Dec 2015
Posts: 5
Likes: 0
Model: Cherokee
Default

thanks
Old 12-31-2015 | 07:27 PM
  #9  
jobin947's Avatar
Thread Starter
Newbie
 
Joined: Dec 2015
Posts: 5
Likes: 0
Model: Cherokee
Default

Here is the culprit. Its a protector fuse that keeps the cars COU from a shock.

replaced it. $200 parts and labor
Old 12-31-2015 | 09:37 PM
  #10  
dave1123's Avatar
Old fart with a wrench
 
Joined: Nov 2010
Posts: 14,398
Likes: 730
From: Manlius, east of Syracuse, NY
Year: 2000 XJ Sport & WJ Laredo
Model: Grand Cherokee (WJ)
Engine: 4.0L
Default

I was thinking fusible link, but I wasn't sure where it was.
Old 12-31-2015 | 11:49 PM
  #11  
andrewmp6's Avatar
CF Veteran
 
Joined: Jun 2011
Posts: 8,014
Likes: 16
From: Louisville,KY
Model: Cherokee
Default

200 bucks is cheaper then a new ecu by a long shot.
Old 01-01-2016 | 10:24 AM
  #12  
Fred/N0AZZ's Avatar
CF Veteran
 
Joined: Jul 2013
Posts: 7,554
Likes: 15
From: Monett, MO.
Year: 1999
Model: Cherokee
Engine: 4.0
Default

If you do that again you should be the one hooking up the cables
Old 01-01-2016 | 12:00 PM
  #13  
dave1123's Avatar
Old fart with a wrench
 
Joined: Nov 2010
Posts: 14,398
Likes: 730
From: Manlius, east of Syracuse, NY
Year: 2000 XJ Sport & WJ Laredo
Model: Grand Cherokee (WJ)
Engine: 4.0L
Default

I've jumped friend's cars before, but I hooked them up without my engine running, and if it didn't start right away, quit trying so I didn't drain my battery. It's a nice gesture to help someone, but self preservation is more important.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Gambit
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
1
12-21-2015 04:40 AM
micahbearden
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
7
12-19-2015 08:04 AM
JeepHut
Vendor Showcase
0
12-04-2015 10:24 PM
David Pinkhasov
MJ Comanche Tech. Stock & Modified.
1
12-04-2015 09:06 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 



All times are GMT -5. The time now is 03:26 AM.