No Starting With High Speed Fan

[rezapanahirad]

my c5 is 2006 there is a big problem happened for me:

engine was working good but suddenly stopped and after that don't start . when I change the position of car switch to start , nothing happened and after 2 second high speed fan is start to working. on multifunction display write: economy mode and I have check the fuses under steering in the saloon and all of them are ok. please help me this is a big problem and I don't know what can I do? which part of vehicle maybe cause of this problem?  I must comfess that problem is happened after I install xenon light on front of car and as soon as I turned on xenon this problem happened. please help help help   thanks

[Parkesie]

Remove the xenon kit. Check main engine bay fuses and how charged the battery is. Sounds like a flat battery but best return it to how it was before to help fault find.

[MikeLane]

Remove the xenon kit. Check main engine bay fuses and how charged the battery is. Sounds like a flat battery but best return it to how it was before to help fault find.

If after removing the xenon kit the engine starts check the voltage at the battery terminals (with the engine running). If it's not around 14Volts the alternator may be damaged.