hi guys was wondering if low/dirty transmission fluid can cause a code of p1643 which is engine control module/transmission control module fault.car drives but it appears to be straining. Also what causes the code of 1638 which is link ecm circuit network. thanks much.

 

hi satwares what did u find out about your code 1643 . was it low on fluid or the tcm ?
just wonted to know , I have that code to.