First of all you probably have a trans issue that's not software related.
Second, the scan tool used for your car uses the DRB. Or the Witech in emulator mode. If it was newer it would have the can bus system that uses Witech and shows the network topology and any updates for all the modules on the network.
With the DRB, you have to look up every module part number it tech tools for updates.
Just to clear that up.
Ya, the software update didnt help. Do you have any clues of what inside the trans would cause this? It does just like the bulletin says, harsh 4-3 downshift at 30 mph, thats why i really thought that would take care of it..
