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Where is the TCM located?

Tiny
CHRISTY EDWARDS
  • MEMBER
  • 2012 GMC YUKON
  • V8
  • 2WD
  • AUTOMATIC
  • 166,000 MILES
Can someone please tell me where the transmission control module is located on the vehicle listed above SLT model with a 4.7 v8? My husband has looked in multiple places, but we cannot find it. Can someone help me please?
Saturday, December 11th, 2021 AT 11:29 AM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

Yes, the TCM is located in the transmission and the transmission pan needs to be removed in order to access the TCM.

Let me know what kind of issues you might be experiencing.

Here is a guide on typical issues with automatic transmissions:

https://www.2carpros.com/articles/automatic-transmission-problems

I have attached diagrams for your reference.

Please let me know if you have any questions.
Thank you.
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Saturday, December 11th, 2021 AT 9:25 PM

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