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XJ Ask the Question Thread
☠ CF Sheriff ☠
CF Veteran
Join Date: Sep 2010
Location: Mercer County, NJ
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Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
and for some reason my obd2 plug in will not connect to the scanner. it wont even turn it on. and all of my fuses are fine, except for one under the hood but its not labeled. and i cannot find a diagram online for that fuse panel.
Moderator of Jeeps
Join Date: Jul 2011
Location: Frederick, MD from Cleveland, OH
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Year: 1993 YJ Wrangler
Engine: 4.0 I6
What year? '96+ use OBD-II. '91-95 use OBD-I. Before '91 didn't store codes at all.
Moderator of Jeeps
Join Date: Jul 2011
Location: Frederick, MD from Cleveland, OH
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Year: 1993 YJ Wrangler
Engine: 4.0 I6
Replace the blown fuse, plug in the code reader, and turn the key to the On position (not running), and turn on the reader if it has its own power button.
Am I missing anything? I've only used them a couple times.
Am I missing anything? I've only used them a couple times.
when you plug in the scanner it should turn on by itself. and i tested all the pins in the plug and none of them have power going to them. and one of the pins should have constant power. and i figured out the fuse problem.
CF Veteran
Join Date: Feb 2013
Location: Justin, TEXAS
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Year: 1988
Model: Cherokee
Engine: 4.0
CF Veteran
Join Date: Jan 2012
Location: Baltimore, MD
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Year: 1999
Model: Cherokee
Engine: 4.0 I6 HO
Just to make sure you aren't doing something small wrong, go to a parts store and have them check the codes for you. It's free. Some code readers don't work on our jeeps. My reader wouldn't connect to my 96.
Junior Member
Join Date: Dec 2013
Location: Atlanta, GA
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Model: Cherokee
The black thing with the white connector in the center of the photo. What is it and should it be clicking?
I noticed a clicking noise that I could hear in the cab at idle. Popped the hood to find it coming from this thing. This is the first time I've noticed this sound.
I noticed a clicking noise that I could hear in the cab at idle. Popped the hood to find it coming from this thing. This is the first time I've noticed this sound.
Last edited by lashonda; 03-26-2014 at 09:37 PM.
Moderator CF K9-unit
Join Date: Apr 2012
Location: Alaska
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Year: 2000 sport
Model: Cherokee (XJ)
Engine: New 4.0l from s&j engines
The black thing with the white connector in the center of the photo. What is it and should it be clicking?
I noticed a clicking noise that I could hear in the cab at idle. Popped the hood to find it coming from this thing. This is the first time I've noticed this sound.
I noticed a clicking noise that I could hear in the cab at idle. Popped the hood to find it coming from this thing. This is the first time I've noticed this sound.