hello mate , i was thinking of getting a diagnostic tool because of the number of different faults i have on the car , one of the annoying faults is that the side lights are flashing instead of the indicators when arming & disarming the alarm , & i believe that you can change this setting with the nanocom , also , it might point me in the right direction to fixing the random flat battery syndrome , & why , when i return to the car the side lights are on without the light switch being left on , these are just three faults out of the 101 faults that i have with this car , so i thought a diagnotic tool would be the right way to go instead of it going back to the dealer every time it needs to be plugged in . thankyou & all of the other people for all your continued good advise on this subject . happy range rovering , Paul .