Hi,
As far as the code is concerned, yes it deals with the knock sensor. I started looking up diagnostics for you but was stopped. I need to know the transmission model in the truck. One is an electric shift 4L60E and the other isn't electric. They point me in different directions.
Also, let me know if you are experiencing any drivability issues. Do you ever notice ticking or valve ping? Is there a loss of power?
If you aren't sure about the transmission, see pic 1 below and let me know what you find.
Take care,
Joe
See pic below.
Image (Click to make bigger)
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Monday, March 28th, 2022 AT 7:23 PM