Hi i have a 51 plate Galaxy TDI 90 my problem is the key fob key has stopped working the ignition, But the engine runs albeit on lower power on the get you home key ie the plain key and the black plastic, On the diagnostics it shows the immobiliser is active ie immobilised, should this reduce the power and how do i get the main key fob to work the ignition again ie turn the immobiliser off.. any advice would be helpfull the key fob still works the central locking etc Thanks in Advance Andy