ECM diagram needed

Tiny
RONKAE
  • MEMBER
  • 2006 CADILLAC STS
  • 4.6L
  • V8
  • 2WD
  • AUTOMATIC
  • 195,000 MILES
ECM diagram, I need to test.
Wednesday, April 27th, 2022 AT 6:23 AM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

The ECM is located on the left front frame rail.
In order to access it you will have to remove the engine splash shield first.

https://www.2carpros.com/articles/how-a-car-computer-works-pcm-ecm-bcm

I have attached the location diagram as well as replacement and re-programming procedure in case you will have to replace it.

Let me know of any questions.
Thank you.
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Wednesday, April 27th, 2022 AT 7:36 AM

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