Hi Randy, thanks for your help..a couple of further questions...
its OK to disconnect the negative battery terminal when engine is running? And how many times can i do this for?
the garage that fitted the new alternator said there was a blown fuse that had to be changed before the engine would start..is it likely the recovery driver caused the damage to the TCM when jumpstarting the car to load/unload from recovery truck?
is the TCM located inside the gearbox?