Okay. The transmission code of 49 - Selector switch invalid would not be related to this issue so unfortunately we have to start another post on that issue as we have to keep each one related to the heading of each one.
As for the code 26, take a look at the attachment. Based on what you said, I answered the questions and got to the box circled. We need to check this voltage and go on with the testing. Basically it means you either have a wiring issue or a possible cluster issue.
Image (Click to make bigger)
Monday, June 1st, 2020 AT 4:47 PM