Working on my 2010 silverado and trying to find some answers. The stock 4l60e transmission went out on me and I picked up a new Chevy Performance 4l70e. The part number of the new transmission is 19260961 and it has a 15 pin connector going into the trans. The Chevy catalog says to use 19257634 trans controller. Doing some searching on the forum I see that in 09 chevy changed some things on the 4l60e and it has a 17 pin connector. Is it as simple as flashing in a 07-08 tcm tune, and repin the connector, I saw that some things like the gear indicator is now internal... Any help would be greatly appreciated.

http://www.flickr.com/photos/73086763@N03/9348254500/ by Badger009er, on Flickr


http://www.flickr.com/photos/73086763@N03/9348255286/ by Badger009er, on Flickr

Obvious a repin is in order. I guess my questions are more on the tune, and a few of the wires that are not common between each other. I have DIY alldata so only access to my truck and I'm guessing GM used a standard 4l70 pinout for their performance transmission and the aftermarket controller.

2010 pinout
A- 1-2 shift solenoid
B- 2-3 shift solenoid
C- PC Solenoid Valve high control Sol A
D- PC Solenoid valve low control Sol A
E- Ignition Voltage
F- Trans Range A
G- Trans Range B
H- Trans Range C
J- Trans Range P <<<<<< ?
K- AT ISS high signal <<<<<?
L- TFT Sensor<<<<<<Guessing transmission fluid temp + in ref to 4l70 layout?
M- Low Reference<<<< Guessing Trans fluid temp - in ref to 4l70 layout?
N- Ground
P-S Not Used
T- TCC sol
U- TCC PWM
V-Trans Turbine Speed Switch Low Ref<<<<<?
W- Trans mission Park/ Neutral Signal<<<<< New trans does not have this internal, Will I need to get a external one to mount on the linkage?

Pinout for a 4L70E i found.. Not sure if its the same as the controller gm is offering separately
The pin layout appears to match the connector in the new trans.

A- Shift sol 1-2
B- Shift sol 2-3
C-Line Pressure +
D- Line pressure -
E- TCC 1-2, 2-3, 3-2 + <<<<< Ignition Source?
F-J Not Used
K- Turbine Speed +
L- ATF Temp +
M- ATF Temp -
N- Trans range A
P- Trans Range C
R- Trans Range B
S- 3-2 Shift solenoid <<<<<< original trans does not have
T- TCC ON/ OFF - activator
U- TCC PWM
V- Turbine Speed<<<<< single turbine speed other trans has

 

Looked up the gm controller number and found that jegs lists the instructions. It's a pcs controller so I went to their site and found the wiring diagram for the connector.


http://www.flickr.com/photos/73086763@N03/9349383122/ by Badger009er, on Flickr

 

I think the New GM perf trans is a variant of the 2009 Trailblazer ss transmission since they dropped the 3-2 solenoid in that trans. I only have ALLDATA for my 2010 truck. If someone would be so kind to get me the pin out for a 09 TBSS at the Transmission, at the TCM and Some sort of Diagram for the Park Neutral switch. I cannot find anywhere if that model is external and on the shaft like the older versions of 70e.