my daughter has a 2002 VW Beetle Turbo and is starting to have a few problems and think it is with immobilizer. What is happening is sometimes the immobilizer icon is staying on for a little while on dash of car and also car is hard to start at times, this is not happening all the time BUT it is starting to happen more often and would like to know what I might be able to look at to try and fix this problem, Thanks