Thursday, October 30th, 2008 AT 1:55 PM
When I changed from Park to Drive in the car, there is a hard shifting, and when on the road it has trouble changing gears. Took the car into a tranmission shop where they diagnosed the problem to be the Powertrian Control Module with code P0622. Shop told me that I need to replace the PCM which is $1K. Is that really what I need to do, or is there a simple check that I can do? Do I need to replace anything else along with the PCM and what is it and is there possibility of damage to the transmission?