I bought a 2003 c3 exclusive sensedrive month ago, last drive was 3 days ago, today when i want to start it, it cannot start. display shows 1) flashing auto with little snowflake symple above it, 2)also shows P instead of N when door opened, 3) the brake pedal cannot be pressed down, 4) no enginee sound when turn key aroud. any ideas what problem it is and how to fix it much appreciated