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Excuse my ignorance but, what is the shift adapt process? I’m in this situation right now, going to use a 4l60e trans from 2007 15 pin on a 2002 5.3 vortex setup 13 pin. What I’ve read, once installed I can take to tuner and he should be able to make it ignore the ISS from 2 extra pins correct?
The 15 pin unit (2007 & 2008) can & does work in a 13 pin 1996-2006 vehicle. The extra 2 pins in the case pass-through connector are not in the harness. There is no tuning involved!!!
If you want to go the other way you have to disable the ISS reporting in your tune....
You cannot swap from one generation transmission into other generation vehiles without the proper TC adapter. GEN2 to GEN 3
Disabling the ISS reporting in the tune can be troublesome. It can result in "phantom" type shift performance and timing oddities as well as converter function issues.
I don't recommend this unless in an absolute bind...but with the abundance of these ISS units...it's not hard to find one and have a proper buildable core for whatever year you need.
Delphi produced many different TPAs for what we use as the 4L60E/ 4L80E Transmission Connectors.
They were produced in different Colors, Pin-Counts, and Key-Ways.
There are maybe 40 different Variants of TPAs.
Here are just a few Examples of the different Key-Ways...
The "Standard" Keying is shown in the Center Position:
The Different TPAs of course need Matching Mating TPAs.
Below shows a Keyed Set of TPAs/ Connectors that would NOT Mate with any of the "Standard" 4L60E/ 4L80E Connectors:
Vorteciroc,
Very impressive layout of information, only an experienced engineer would know all of this.
I have experience designing connectors/etc. for the electronic industry and there is a lot to know.
Right now I'm getting a number of transmission P codes on my 2006 Tahoe (4L60E).
Some people are telling me that likely the big connector is having connection issues possibly caused by trans. fluid contamination.
What are the chances that disconnecting the connector and attempting to clean things up will work?
I'll also look at the contacts as best I can to see if there are obvious issues.
Thanks for any assistance. I couldn't find where to send you a PM so I posted here.
-Henry
I have an 02 Silverado that the mice have chewed through every wire going to the transmission. I have an 03 Silverado wiring harness available with what appears to have the same connectors on it, although some of the wires are different colors. Should I be able to just splice the 03 harness in to the 02 wires that are damaged and be back in business?
This was great read , im puting a 1997 4l60e in a 1957 chev pick up with a 1995 lt1 eng and using a payless harness which has 13 pins / using computer from 1995 cameo do i need to change or upgrade soft ware i found a post about jumping pin t and pin u to gather but does say what years will work any idea please thank you
Your 1997 4L60E is definitely of the "PWM TCC" type with 13 pins including T and U. (See 2nd pinout in post #6 above).
Presumably your 1995 PCM supports the "PWM TCC". However since this is the first year of PWM TCC, perhaps someone can confirm it, as I fear that was a transition year with some 4L60E being PWM and some leftover ones not. Hopefully someone more knowledgeable can chime in.
01-24-2024, 06:57 PM
