Question: The Alarm System and Central Door Locking (CDL) on my Turbo RL have suddenly failed and the Ignition will not operate. On turning the key the instruments do operate and a gearbox warning comes up on the panel. All fuses appear to be intact. Any ideas?

Answer: It does sound like it is an alarm/immobiliser problem and this would be a good idea to change this first. Although it would be advisable to have the car plugged into a diagnostic testing machine to make sure this is the case.