tj standard to auto swap check engine light - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ General Discussion Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 02-23-2012, 03:06 PM   #1
Newb
 
Join Date: Feb 2012
Posts: 7
tj standard to auto swap check engine light

Hey guys first post. Just bought a 01 tj with the 4.0. It has had the standard taken out and an auto dropped in. The check engine light is on. I don't remember the check engine code but it had something to do with it not knowing what gear it is in. I found two plugs unplugged near where the shift linkage connects to the trans. Also the reverse light do not work. Any help would be sweet!
http://i985.photobucket.com/albums/a...1-17001159.jpg

quadsquad is offline   Quote Quick Reply
Old 02-23-2012, 03:10 PM   #2
Newb
 
Join Date: Feb 2012
Posts: 7
According to the previous owner the computers were swapped out with the 01 tj that this auto trans came out of.

quadsquad is offline   Quote Quick Reply
Old 02-23-2012, 03:14 PM   #3
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 33,158
Images: 2
Assuming the transmission is a 32RH, are both connectors plugged into their jacks near the rear of the transmission on the driver's side? One controls the lockup torque converter and the other connects the NSS (neutral safety switch) and Reverse lights.

The lockup torque converter needs to be connected and working because the transmission will run hotter if it isn't working.
__________________
When you have a choice, buy American.

Jerry Bransford is online now   Quote Quick Reply
Old 02-23-2012, 03:16 PM   #4
Newb
 
Join Date: Feb 2012
Posts: 7
No they were just hanging there. The neutrol safety does not work. I can crank in any gear. How to tell if it is the 32rh?
quadsquad is offline   Quote Quick Reply
Old 02-23-2012, 04:11 PM   #5
Newb
 
Join Date: Feb 2012
Posts: 7
Also, to you guys that have done this swap and J.B., can you tell buy the picture i posted at the top if these are the correct plugs that jerry bransford is talking about. cant seem to find where the one that is not round would plug in.
quadsquad is offline   Quote Quick Reply
Old 02-23-2012, 04:26 PM   #6
Jeeper
 
TheTJRod's Avatar
 
Join Date: May 2009
Location: Northern Virginia
Posts: 1,369
Do you know what year the tranny came from? Also I believe your mileage is now incorrect as it's stored in the PCM. Just something to note. 97-02 32RH, 03-06 42RLE. Also the 42RLE has an overdrive and the 32RH doesn't.


http://www.wranglerforum.com/f5/tj-t...ecs-26347.html
__________________
'03 TJ Sport / D30/Ford9 / 35x12.5x15 KM2 / D window black steel 15x8 wheels / 3" custom long arm lift / SYE & 1350 DS / JKS BL / 1" MML / Smittybilt's front bumper, Tube fenders, Rocker guards, and rear bumper / High Rock Tire Carrier
Just bought a True Hi9 rear and a D44 front, both with ARB's and 4.88 gears!! Check out the build!
TheTJRod is offline   Quote Quick Reply
Old 02-23-2012, 05:21 PM   #7
Newb
 
Join Date: Feb 2012
Posts: 7
Supposedly a 01 tranny and computer. There definetly is no overdrive.
quadsquad is offline   Quote Quick Reply
Old 02-24-2012, 12:35 PM   #8
Jeeper
 
TheTJRod's Avatar
 
Join Date: May 2009
Location: Northern Virginia
Posts: 1,369
You got the 32RH then. I went through a 2001 wiring manual and screen grabbed all the mentions of the difference of the manual and auto. Hope it helps you track your problem down. From the look of it and the diagrams it is the Neutral/Park or Back up Lamp Switch. Check the wire colors on the plug and you should be able to figure out what it is.
Attached Thumbnails
Click image for larger version

Name:	2001 jeep mt at wires-1.png
Views:	38
Size:	25.7 KB
ID:	99491   Click image for larger version

Name:	2001 jeep mt at wires-2.png
Views:	41
Size:	38.9 KB
ID:	99492  

Click image for larger version

Name:	2001 jeep mt at wires-3.png
Views:	36
Size:	37.7 KB
ID:	99493   Click image for larger version

Name:	2001 jeep mt at wires-4.png
Views:	40
Size:	67.6 KB
ID:	99494  

Click image for larger version

Name:	2001 jeep mt at wires-5.png
Views:	56
Size:	30.8 KB
ID:	99495  
__________________
'03 TJ Sport / D30/Ford9 / 35x12.5x15 KM2 / D window black steel 15x8 wheels / 3" custom long arm lift / SYE & 1350 DS / JKS BL / 1" MML / Smittybilt's front bumper, Tube fenders, Rocker guards, and rear bumper / High Rock Tire Carrier
Just bought a True Hi9 rear and a D44 front, both with ARB's and 4.88 gears!! Check out the build!
TheTJRod is offline   Quote Quick Reply
Old 02-24-2012, 01:40 PM   #9
Jeeper
 
TheTJRod's Avatar
 
Join Date: May 2009
Location: Northern Virginia
Posts: 1,369
From the ground distro diagram. It looks like all the wires you need are on a 4 pin connector further up the wires where that 2 pin plug is and I think I can see it in your picture. Also on the transmission diagram it shows the wires needed for the torque converter.
__________________
'03 TJ Sport / D30/Ford9 / 35x12.5x15 KM2 / D window black steel 15x8 wheels / 3" custom long arm lift / SYE & 1350 DS / JKS BL / 1" MML / Smittybilt's front bumper, Tube fenders, Rocker guards, and rear bumper / High Rock Tire Carrier
Just bought a True Hi9 rear and a D44 front, both with ARB's and 4.88 gears!! Check out the build!
TheTJRod is offline   Quote Quick Reply
Old 02-24-2012, 02:13 PM   #10
Jeeper
 
freeskier's Avatar
 
Join Date: Mar 2011
Location: Longmont, CO
Posts: 2,629
Quote:
Originally Posted by TheTJRod
Do you know what year the tranny came from? Also I believe your mileage is now incorrect as it's stored in the PCM. Just something to note. 97-02 32RH, 03-06 42RLE. Also the 42RLE has an overdrive and the 32RH doesn't.

http://www.wranglerforum.com/f5/tj-t...ecs-26347.html
Mileage is stored in the gauge cluster. Just an FYI.
__________________
CU Boulder Aerospace Engineering
freeskier is online now   Quote Quick Reply
Old 02-24-2012, 02:23 PM   #11
Jeeper
 
TheTJRod's Avatar
 
Join Date: May 2009
Location: Northern Virginia
Posts: 1,369
Quote:
Originally Posted by freeskier View Post
Mileage is stored in the gauge cluster. Just an FYI.
That kinda sucks. It makes it to easy to fake the mileage. I just removed my dash 2 days ago to replace some dash lights that went out. Took all of 15 min to get it out.
__________________
'03 TJ Sport / D30/Ford9 / 35x12.5x15 KM2 / D window black steel 15x8 wheels / 3" custom long arm lift / SYE & 1350 DS / JKS BL / 1" MML / Smittybilt's front bumper, Tube fenders, Rocker guards, and rear bumper / High Rock Tire Carrier
Just bought a True Hi9 rear and a D44 front, both with ARB's and 4.88 gears!! Check out the build!
TheTJRod is offline   Quote Quick Reply
Old 02-24-2012, 02:33 PM   #12
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 33,158
Images: 2
Quote:
Originally Posted by TheTJRod View Post
That kinda sucks. It makes it to easy to fake the mileage. I just removed my dash 2 days ago to replace some dash lights that went out. Took all of 15 min to get it out.
It's no different from when we all ran mechanical cable-driven speedometers. Those could be swapped just as easily.
__________________
When you have a choice, buy American.

Jerry Bransford is online now   Quote Quick Reply
Old 02-24-2012, 11:34 PM   #13
Sponsoring Vendor

WF Supporting Member
 
Black Magic Brakes's Avatar
 
Join Date: May 2011
Posts: 1,900
Quote:
Originally Posted by quadsquad View Post
Hey guys first post. Just bought a 01 tj with the 4.0. It has had the standard taken out and an auto dropped in. The check engine light is on. I don't remember the check engine code but it had something to do with it not knowing what gear it is in. I found two plugs unplugged near where the shift linkage connects to the trans. Also the reverse light do not work. Any help would be sweet!
http://i985.photobucket.com/albums/a...1-17001159.jpg
The Weatherpack plug which is NOT the round one with two small pins plugs into the reverse light switch on the manual. You should be able to follow it up the harness to another connector which it should unplug from. In that connector are 3 pins and you will need the short harness adapter that goes from there to the NSS which has 3 terminals.

The round plug goes on the round connector pointing straight back at the back of the transmission just above the end of the oil pan. There will or should be a small metal wire clip that looks like a small version of the window crank clip that keeps it in place and connected.

__________________
I am Savvy, I am the brake Wizard.
http://blackmagicbrakes.com
Black Magic Brakes 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:
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Reman Engine Recommendations CJPete General Jeep Discussion 3 02-24-2012 12:01 PM
Ball joints on tj k5guy38 TJ General Discussion Forum 9 02-23-2012 05:52 PM
jeep tj standard to auto engine light quadsquad TJ General Discussion Forum 3 02-23-2012 03:09 PM
well at least I get to test it out Tuma JK General Discussion Forum 1 02-23-2012 02:36 PM
TX: 1997 Red TJ $11,500 OBO. 4X4-TJ Classifieds Archive 0 02-23-2012 02:35 PM



Download our Mobile App

» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 12:13 AM.



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