Resetting maintenance indicator light after changing O2 sensors? - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ Tech Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 10-17-2006, 01:17 AM   #1
Newb
 
Join Date: Oct 2006
Posts: 5
Resetting maintenance indicator light after changing O2 sensors?

Hi:

I am going to change the O2 sensors on my 1998 TJ Wrangler Sport (6 cylinder, 4.0L). According to the Haynes manual, I need to reset the emissions maintenance indicator light. Here is the paragraph from Haynes manual:

"On 1991 and later models, the emissions maintenance indicator light can only be reset with a special tool available at most auto parts stores. After replacing the oxygen sensor, take the vehicle to a dealer service department or other properly equipped repair facility and have the light reset."

I looked up the factory service manual, and it did not mention any such indicator light. I wonder if anyone has heard such a light?

Thanks.

ironmonk is offline   Quote Quick Reply
Old 10-17-2006, 07:04 AM   #2
I got nothin'

WF Lifetime Member
 
jeeperman's Avatar
 
Join Date: Apr 2005
Location: Michigan
Posts: 1,896
If you end up with a "check engine" light or the like, you can go to autozone and they will reset as a rule...

__________________
Quote:
Originally Posted by Scout View Post
I like "prick".

Go ahead...quote me on that.
"Hold my beer while I kiss your girlfriend... you have to be good for something"

--Aaron Pritchett

If you have to ask what it is or what it does, you don't need it, and you will need help to install it!
jeeperman is offline   Quote Quick Reply
Old 10-17-2006, 11:05 AM   #3
Shake 'n Bake

WF Lifetime Member
 
khenderson's Avatar
 
Join Date: Apr 2005
Location: PHX
Posts: 1,344
Send a message via ICQ to khenderson Send a message via AIM to khenderson Send a message via Yahoo to khenderson
you can also do this and it'll take care of the light.

ECU reset
__________________
I'ma come at your like a spider monkey!


khenderson is offline   Quote Quick Reply
Old 10-17-2006, 04:44 PM   #4
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 31,771
Images: 2
To reset the ECU and any existing Check Engine light, all you have to do is disconnect the battery for 1-2 minutes. No need to go elsewhere and have someone use any special tool.
__________________
Remember that having a different opinion doesn't also require one to be a jerk when expressing it.

When you have a choice, buy American.

Jerry Bransford is online now   Quote Quick Reply
Old 10-18-2006, 01:04 AM   #5
Newb
 
Join Date: Oct 2006
Posts: 5
Thanks

It turns out the Haynes manual is out-dated, even though it is supposed to cover models up to 2003. What it said only applies to OBD I. 1998 TJ uses OBD II, so no such indicator light. Which also explains why FSM did not mention it.

Thanks.
ironmonk is offline   Quote Quick Reply
Old 10-20-2006, 09:26 PM   #6
Jeeper
 
04tjinsa's Avatar
 
Join Date: Sep 2005
Location: SAN ANTONIO, TX
Posts: 51
Like Jerry said just discconect the battery for a minute or two. This works on my sons 96 dodge ram.
__________________
98 Sport 4.0 Automatic, with a Dana 44 up front and 4.56’s and a Ford 8.8 in the rear W/ Detroit Locker and 4.56's. 35X12.50X15 Goodyear MTR’s mounted on Mickey Thompson Side biters. Rubicon Express 5.5 inch Long Arm lift. Rock Crawler type bumpers front and rear. 9500lb winch, Poison Spider rocker guards. .
04tjinsa is offline   Quote Quick Reply
Old 11-08-2006, 12:15 AM   #7
Newb
 
Join Date: Sep 2006
Posts: 8
Auto Zone will do it for you too but in NY (at least my location) were not "supposed" to do it I have no idea why but we gotta do it on the down low cause we get the 5th degree for clearin codes.

I always do it anyway =) never had a problem............
Swizz is offline   Quote Quick Reply
Old 10-16-2007, 07:52 PM   #8
Newb
 
92jeepster48195's Avatar
 
Join Date: Aug 2007
Location: Southgate, Michigan
Posts: 10
The "Maintenance Required" light just went on my '92 Wrangler at 82,500 miles and according to the maintenace schedule it's time to change my oxygen sensor. Well, the Jeep is running just fine so how do I turn the warning light off? I disconnected the negative cable on the battery for about 30 minutes and it still stays on. Any suggestions? Thanks!

92jeepster48195 is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




» Featured Product

All times are GMT -5. The time now is 12:05 PM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC