Car won't start "Economy Mode"

Sounds like a flat battery, get it jump started, the warning on dash is just CAN systems shutting down to try and prevent a flat battery.

Once it's running, drive it a few miles, then get battery and charge rate checked as soon as.

Hope this helps...

try taking out shunt fuse wait afew minutes replace and try it shunt fuse should be grey fuse in fuse box in the car

hi i figgered it out!!!! citroen c2 eco mode wont start// take the plugs from your computer box situated next to your battery, look for any missing pins rust or water,if a pin is missing(all the pins should be there no open spaces!!!) open the computer box locate the pin connector solder a new wire on and connect it to the incoming wire.put back together and it should start.Remember eco mode is only there to tell you that you're saving power now, not an indicator of something else that is wrong.so if there is nothing else wrong with your car it should start even if eco mode is on.hope this helped,i fixed it, so can you.