Hello, I sure hope someone can help me with my problem. So I have a 2003 Xsara Break car. I was messing with my radio when then I think I did something wrong and it caused my car to go into "Eco Mod". Now the car will not start! The motor turn but it does not start. On the dash the Immobilizer light comes on when I try to start the car. The remote key also does not open the doors or do anything. I tried the spare key but it also does not start the car. So I need HELP!!! I have searched everywhere in Internet for help but nothing has worked. There are some help ideas that require me to open the windows and turn the key, but I can not open the windows while the car is in Eco Mod. Someone told me that there is a way to get out of Immobilizer mode by keeping the key ignition to On for 25 minutes, then start the motor. But it did not work, or I did not do it correct. If someone knows about this, please tell me how to do it. So again, I really hope I can find help in the forum.