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Unread 09-09-2013, 09:29 AM   #1
wbthompsonco
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Join Date: Jun 2011
Location: iron mountain, mi
Posts: 10
Wiring ID Problem

1998 Grand Cherokee 4.0L. While underneath it today, looking at exhaust components I need to replace, I spotted a wire that apparently rubbed on the driveshaft right behind the transfer case until it work right through. It's one of 2 wire assemblies that come across the top of the transmission - one wire connects near the top of the transfer case, and the other goes to a connector and then attaches to the body just to the right side of the driveshaft.....and then is gone, worn away. Does anyone know what this wire assembly is for? I don't even see where the other end of it could be, so I think at some point the driveshaft caught a good-sized length of it and ripped it off. I know that reverse lights and the rear wiper don't work. No fuses are blown under the hood or in the fuse panel in the passenger compartment.

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Unread 09-09-2013, 02:04 PM   #2
Oldfrog
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1997 ZJ 
 
Join Date: Feb 2008
Location: Louisiana/Texas
Posts: 4,062
Sounds like the O2 sensor at the Cat. It's known for wrapping around the drive shaft, shorting and blowing a fuse in the PDC under the hood, which will make keep it from running.
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Unread 09-09-2013, 06:15 PM   #3
ZeeJay1997
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1997 ZJ 
 
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Location: Sweet Home, Alabama
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what color is the wire and tracer?
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Unread 09-09-2013, 06:36 PM   #4
xcaliber81
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1994 ZJ 
 
Join Date: Jul 2012
Location: Prince George, B.C
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No reverse lights? How about the NSS?
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Unread 09-13-2013, 01:20 PM   #5
wbthompsonco
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Join Date: Jun 2011
Location: iron mountain, mi
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followup question

Forgive me, but what is NSS?
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Unread 09-13-2013, 01:51 PM   #6
newfieZJ
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1995 ZJ 
 
Join Date: May 2008
Location: , Alberta
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Wire on the t-case would be the shift indicator , wire attaching to the body by a small plastic clip would be the downstream O2

NSS= neutral safety switch

on that wiring harness is also the t-case speed sensor , trans speed sensor , trans main bus plug in , upstream O2 , and CPS (crank position sensor)
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