Where is the main fuse on the 2003 911 Carerra?

I hope it is just a main fuse I hear horror stories of ECU's getting damaged. Does the engine crank over and not fire or just not crank over. I looked at a wiring diagram and fuse chart it runs several pages in the manual. There is a company that independent auto repair shops get their information from, this same information is available inexpensively for people that work on their own cars.. The information is year make and model specific, covering repair procedures, torque specifications, fluid capacities and specifications, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate http://bit.ly/AllData_Repair_Manuals_Online But first look at fuse identification in your owners manual. Check here http://repairpal.com/automobile-owners-manuals-online or try this link you may be able to down load a free copy of the owner's manual for your vehicle http://www.autousermanual.com/