My renault megane will not start, the immobiliser will not switch off, I can unlock & lock the car but not start it. This problem occured after I left the lights on and the battery went flat. I have obtained the code needed to override, however the central locking does not respond (when I press it the flashing does not slow down, hence I can't insert the code) I have tried pressing the accelerator pedal & pressing in the end of the window wiper wand with no avail, do you know of any other way of inserting the code and hence overriding the immobiliser?
Many thanks

Barb Foster, December 2010