2015 corolla 180k - cvt wont shift

#1
im trying to help a friend.

I dont know the details but it was stuck in reverse then stuck in park or soemthing. It was towed to a shop but now its in my possession.

How do i go about diagnosing this transmission?

Its not the shifter - i disconnected it from the linkage and it moves smooth. Its not the linkage cause I can see it move freely when disconnected from the transmission.

Whats my next steps before shelling out a couple grand?

Also for the 2015 CVT, how do i knwo which one i have? like A42DL A44DL etc
 
#2
Also for the 2015 CVT, how do i knwo which one i have
K313 Toyota-Aisin. Check fuses as a simple blown fuse for brake lights might prevent shifting. Can't help more. If a new trans is in the end needed, you may find a used one for $700 - $1000 (sometimes less) if you're lucky at the scrap yard.
 
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