I have rebuilt the transmission with new clutches and TCC solenoid and torque converter.
Feb 14, 2023 at 3:53 PM
Code P2769?
2008 CHEVROLET SILVERADO
ANTHONEY1
- MEMBER
- 1 POST
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JACOBANDNICKOLAS
- ✓ASE Certified Mechanic
- 110,194 POSTS
Hi,
The code you have is specific to the TCC, which I believe you are already aware of. It doesn't appear to be the TCC, but instead, it indicated there is an open circuit or a short to ground when the TCC is commanded on.
So, anytime I have both possibilities (open or shorted) I always start by checking connector ends to make sure there are no pins crossed shorting, or damaged and not making contact. In this case, it will be between the TCM (trans control module) and the TCC.
Have you done this yet? If not, start with this. If you find everything appears to be in good condition, then we need to start checking via the schematics.
Here is a link you may find helpful:
https://www.2carpros.com/articles/how-to-check-wiring
Let me know.
Joe
The code you have is specific to the TCC, which I believe you are already aware of. It doesn't appear to be the TCC, but instead, it indicated there is an open circuit or a short to ground when the TCC is commanded on.
So, anytime I have both possibilities (open or shorted) I always start by checking connector ends to make sure there are no pins crossed shorting, or damaged and not making contact. In this case, it will be between the TCM (trans control module) and the TCC.
Have you done this yet? If not, start with this. If you find everything appears to be in good condition, then we need to start checking via the schematics.
Here is a link you may find helpful:
https://www.2carpros.com/articles/how-to-check-wiring
Let me know.
Joe
Feb 14, 2023 at 5:14 PM
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