Stevelyons

Hi guys, I've got a 2007 GS 300 SE, and the immobiliser has stopped working, meaning I can't move it. My son in law came up and plugged in his laptop and told me that although the car recognises the keys, and he could spin up the starter motor the immobiliser wont respond.  He's used to playing with is200's so doesn't know how to bypass the immobiliser,  can this be done? Help, I'm disabled and now car less!