Built trans stuck in limp.

Antiher03

New member
Nov 10, 2013
165
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0
Utah
Ok so I am having problems with my 03.

I will try to make this short and sweet but most likely not... I drag raced the night before on the last pass I noticed a slightly different shift. It didn't throw me into limp mode and didn't shift really hard just not as smooth. I'm not sure if that is related somehow.

The next morning I drove around without problems until I parked, my wife went out and started it and when I got in the seat I noticed my abs, brake light and service brake system. My speedo would not work the indicator was gone and it feels like I only have p r and 3rd.

The first set of codes were
Unk u 1000
Abs c0035
Abs c0055
Pcm u2106
Tccm (/ab u1000

I cleared them and drove literally 4 houses down with no problems than it threw me back into 3rd with the following codes
Tcm p0562
Abs c0035
Abs c0055

I had a bad battery which I swapped out for new ones hoping that was my low voltage code with no luck.

Codes
Unk u1000
Abs c0055
Abs c0035
Pcm u2106
Tccm (/ab u1000

I have looked over harnesses to the transmission looking for hot spots in the shield with no luck, I also checked some fuses I thought may be linked to the trans.

Will the sensors in the hubs do this? I'm not quite sure what else to look for









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onebaddmaxxx

Active member
Feb 22, 2009
1,212
1
38
Cecil County Md
I would start by clearing everything. The. Look for the c0055 to come back. Which could be a simple rear speed sensor, or a a transfer case issue starting to develop if 4x4. That's where I would start.
 

Antiher03

New member
Nov 10, 2013
165
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0
Utah
I have cleared it multiple times now and it keeps coming back. Would I be able to tell if the transfer case is bad without taking it apart?


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onebaddmaxxx

Active member
Feb 22, 2009
1,212
1
38
Cecil County Md
About all you can do is make sure the rear bushing has not worked out. That allows to much play and the sensor will air gap the tone ring. I'd start by replacing the rear speed sensor if the bushing is still in the tcase.
 

mike diesel

I'm alright.
Sep 6, 2012
4,005
0
36
SLC, Utah
I highly doubt it is speed sensor related seeing as it has both front and rear sensor codes as well as communication issues. I'll bet the issues all stems from the u1000 code.
 

Antiher03

New member
Nov 10, 2013
165
0
0
Utah
Just a little update, I decided to take it to someone and he found out I had bad fuse terminals in both fuse boxes. I should be getting it back today


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Antiher03

New member
Nov 10, 2013
165
0
0
Utah
Ok just a little update, every once in awhile I will get a sporadic shift nothing too crazy and usually if I am driving grandpa style only does it from first to second. So I decided to check for codes and I am still getting abs c0055 and abs c0035. I cleared them and drove home and before I shut it down I checked it again no codes but I did notice when I turned it off the abs light flashed real fast and what do you know I pulled those codes back up!?

I'm not sure what to look for... Bad sensors, open wire could the ignition switch have something to do with it?


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