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-   -   tj standard to auto swap check engine light (http://www.wranglerforum.com/f282/tj-standard-to-auto-swap-check-engine-light-141733.html)

quadsquad 02-23-2012 02:06 PM

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 02-23-2012 02:10 PM

According to the previous owner the computers were swapped out with the 01 tj that this auto trans came out of.

Jerry Bransford 02-23-2012 02:14 PM

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.

quadsquad 02-23-2012 02:16 PM

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 02-23-2012 03:11 PM

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.

TheTJRod 02-23-2012 03:26 PM

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

quadsquad 02-23-2012 04:21 PM

Supposedly a 01 tranny and computer. There definetly is no overdrive.

TheTJRod 02-24-2012 11:35 AM

5 Attachment(s)
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.

TheTJRod 02-24-2012 12:40 PM

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.

freeskier 02-24-2012 01:13 PM

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.

TheTJRod 02-24-2012 01:23 PM

Quote:

Originally Posted by freeskier (Post 2070081)
Mileage is stored in the gauge cluster. Just an FYI.

:doh: 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.

Jerry Bransford 02-24-2012 01:33 PM

Quote:

Originally Posted by TheTJRod (Post 2070105)
:doh: 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.

Black Magic Brakes 02-24-2012 10:34 PM

Quote:

Originally Posted by quadsquad (Post 2066509)
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.


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