Do you need to recalibrate the tcm if you change out with another used one.

Question

Do you need to recalibrate the tcm if change out with another used one.

Answer 1

Yes you have to reset the adaptive values, provided you have the correct TCM installed, to reset the adaptive value a dealer grade scan tool has to be used, you can also do a static sift relearn, shift in nuetral for three seconds shift N to D for 2 seconds repeat 3 to 5 times unlil there is no N to D shock, then you go to N to R to 2 seconds repeat 3- 5 times until there is no N to R shock.