2006 GTO E40 cruise issues.

Ok I don't know what is going on with the cruise on this car. I see that there are cruise pins in the ECU, the thing engages and then disengages right away. I can't find any other control boxes etc that could have fault, does anyone know if the ECU itself runs the cruise or is there some other part in the system that I need to look for? Could be fault with the cruise switch I suppose. I don't see any cruise related stuff in the ECU programming.

Cruise switch feeds into Powertrain Interface Module(PIM) before going to pcm, I seem to remember having to link them when I replaced a pcm. Under status bits add the cruise ones and make sure the brake switch is working also.

OK thanks, will look for that module then, any idea where it might be? Cruise clicks on the off again.