Locate the immobilser box,which is bolted to the steering column ,behind plastic column shroud.Check the multi pin connector plug.There should be a constant battery supply to one of the pins (red if i recall)and ignition to the orange.Also check the black wire for a good earth supply.Do you have the emergency access code?If you do,then the engine should start with seguencing the throttle pedal.(refer to owners handbook,it's all in there)