Right have a strange one, the old "Key Fob" decided to pack up, (after checking the battery first) so called out a Mobile auto key guy, he came out saying "no probs fixed in a jiffy" well 1 hour later and him serious scratching his head he said" this does not make sense" then I happen to mention that my truck was a Jap import. (to say the look on his face explained he was not best pleased was an understatement). It turns out the Britsh to Jap Landys use a different frequency on the Alarm/immobiliser. British 433 Mhz. Japs 315 Mhz. What I want to know is can I just simple replace the little Green box under the pasenger footwell (that contains the alarm/immobiliser) and have him re-program the box and fob OR is there any other items / specifics that need to be adjusted /re-programmed due to the frequency difference? Any help would be greatful. (Note Point:- the landy will still unlock/lock on the key AND will start and drive, so even more confused.com, also the "flashing" indicators have NEVER worked on arm/disarm) Thanks Rob