TCCM diagram MP1626XHD NQF

2012 CHEVROLET SILVERADO
10 MILES • 6.6L • V8 • 4WD • AUTOMATIC
Avatar
SBORNOE
  • MEMBER
  • 17 POSTS
Is there anyone who can provide a diagram for the wires on these?
Dec 7, 2021 at 6:48 PM
Advertisement
Avatar
JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi,

As far as the schematics, I attached them below. What is happening? Are there any diagnostic trouble codes?

Let me know.

Joe

See pics below. Note: I had to cut the schematic in half to make it readable. I did overlap them so you can follow from one to the next.
Dec 7, 2021 at 9:18 PM
Avatar
SBORNOE
  • MEMBER
  • 17 POSTS
Thank you so Much! Also need same for 2003-05 for comparing. I am using a LB7 and Allison 1000 in my Hummer H1 conversation. Also have a 11 bolt MP1626XHD NQF with new back housing for the transmission. Ideally, I would have used the manual shifter MP1625, but I was lucky to get the 1626, only that I need to wire up the shifter actuator with the correct round dialing wheel shifter switch as a standalone in some way. Also looking for 4 high/low switch, TCCM controller and wiring harness from the switch to the TCCM and T-case.
Dec 8, 2021 at 2:38 AM
Avatar
JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi,

The additional schematics needed, are they for the same model?

Joe
Dec 8, 2021 at 7:42 PM
Avatar
SBORNOE
  • MEMBER
  • 17 POSTS
Hi again. Really late reply here! Can you help me with schematics for ecm, tcm and tccm for LB7 Duramax, Allison 5 speed and t-case 263xhd? 2003-2005
Oct 20, 2022 at 4:10 AM
Avatar
JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi,

The first 4 pics are of the TCM. The remaining pics cover the entire powertrain management system.

Let me know if this helps.

Take care,

Joe

See pics below.
Oct 20, 2022 at 6:12 PM
Avatar
SBORNOE
  • MEMBER
  • 17 POSTS
Thanks, that helps a lot! I could also need diagrams for the can bus data and specific the Wake-up signal for all the different BCM TCM TCCM and so on. For both LB7 2003-05 and LML 2011. I know the GMlan system is not the same on both. Thanks again.
Oct 25, 2022 at 4:09 AM
Avatar
JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
I realize these are both diesels. On the 2005, do you want the CAN schematics for a truck or the Hummer H1?

Let me know.

Joe
Oct 25, 2022 at 8:07 PM
Avatar
SBORNOE
  • MEMBER
  • 17 POSTS
I need only for Silverado Duramax trucks (LB7 and LML), everything will be standalone in the Hummer H1.
Oct 26, 2022 at 12:45 AM
Avatar
JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi,

The attached are for a 2004, 2500 2wd and a 2011, 2500 2wd.

The first two pics are for the 04. The remaining pics are for the 2011. Take a look through them and let me know if they help.

Take care,

Joe

See pics below. Note: each page was cut in half to make them readable. I overlapped them from one to the next. There is a big difference between the model years.
Oct 26, 2022 at 5:20 PM
Avatar
SBORNOE
  • MEMBER
  • 17 POSTS
Thanks again for all the help. But do you have the same schematics only for 4wd?
Oct 27, 2022 at 4:59 AM
Avatar
JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi,

I do, LOL The first two pics below are for the 04, 4wd and the remaining pics are for the 2011, 4wd.

Let me know if that is what you needed.

Take care,

Joe

See pics below.
Oct 27, 2022 at 5:08 PM
Avatar
SBORNOE
  • MEMBER
  • 17 POSTS
That's great, thanks.

Now I need to compare to something else, do you have the schematic for Jeep 2014 with the NQH MP3023

shifter actuator with the correct round dialing wheel shifter switch as a standalone in some way. Also looking for 4 high/low switch, TCCM controller and wiring harness from the switch to the TCCM and T-case.
Oct 29, 2022 at 3:20 AM
Avatar
JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi,

I would be happy to get that for you, but I have a favor to ask. Is it possible for you to start a new post? We try to keep the topics specific to one type of vehicle, so it is more helpful to others. I hope you understand.

Here is the link to start a new one:

https://www.2carpros.com/questions/new

Just copy and paste your last question.

Again, I hope you understand.

Take care,

Joe
Oct 30, 2022 at 12:23 AM
Avatar
SBORNOE
  • MEMBER
  • 17 POSTS
Can you help me with schematics for ECM, TCM and TCCM for LB7 Duramax 2500HD , Allison 1000 5 speed and t-case 263xhd? 2003-2005?

Need to compare.

Thanks again.
Nov 6, 2022 at 9:02 PM
Avatar
JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi,

As far as the wiring for the ECM, the first pics below are the entire powertrain management circuit schematic. I had to cut each page in half to make it readable for you.

The last two pics are for the transmission control module with the Allison.

Let me know if this helps.

Take care,

Joe

See pics below.
Nov 7, 2022 at 6:09 PM
Avatar
SBORNOE
  • MEMBER
  • 17 POSTS
Thanks again!

It looks almost correct; can I have the same schematic for the year before this one also? Up to 2003 maybe?

Because my TCM has a date 2003 on it and has two connectors red and grey.
Nov 8, 2022 at 7:57 AM
Avatar
JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi,

No problem. I attached what I have below for the 2003. Pics 1 and 2 are from the transmission circuit. The remaining pics are the powertrain management schematics.

Let me know if this helps.

Take care,

Joe

See pic below.
Nov 8, 2022 at 6:51 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.