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I got the dreaded P0700 & P0711 on Monday on a 2015 GMC Yukon Denali. Cleared the code and it came back. MIL hasn't iluminated yet so I'm waiting on another drive cycle before I schedule an appointment with the dealer.
In the meantime I wanted to understand the conditions of P0711. GM has a great PDF but I can't quite understand it.
https://gsi.ext.gm.com/gmspo/mode6/pdf/2015/15OBDG08A Transmission Diagnostics.pdf
I don't quite understand how to apply the table to the conditions.
Further to add confusion, my scan tool is reading -40F for TFT although in tow mode my transmission temp reading hovers between 125 and 150. I did watch it once and see it dip to 100 flat from 125-150 for a brief moment so I imagine its just a flaky sensor but I'm more curious about what triggers this based on those conditions.
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