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Not sure if this will help, but here's a 16 Yukon 5.3/ A6.

94154

Seem to remember others using the LC-2 through the computers USB port with a serial to USB adapter cable.
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There’s a brief discussion regarding permenant codes here:

https://forum.hptuners.com/showthread.php?73319-DTC-No-Error-Reported-SES-Off-The-DTC-code-is-still-pulled-when-scanned
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Transmission tab > manual > Disable TPS & speed to 0

Don?t take what I?m writing here as gospel because I myself just purchased a Mpvi2 and am trying to figure things out.

With that disclaimer being said, from what I can see, it looks like you...