sorry I left out the r on mine, and was going by memory , so cant remember the rc40 bit but that rings a bell. Perhaps at some stage your car has had a different trans in it. On the dash does it have the spot to display what gear you are in (only lights up when in manual mode, but you should be able to see if it is there or not) Are you in adelaide? If yes just go to mv and let them have a look at it.