Rebuilt trans throwing an m3 display

Maycor181

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I have a 2006 g6 with a 4t65e trans. I pulled it out and rebuilt it. Once I got the car back together it wouldn’t start. It’s saying that it’s in m3 and won’t allow the car to start. So I took off the side cover of the trans to see if the range selector was installed correctly and it looks like it’s in the proper place. Does anyone know what could be causing this?
 
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