Electrical Drawing Software

Gentlemen, is there any software where I can get my own schema that contains electrical, switches, relays, fuses, diodes, etc. and then at the end to virtually test the circuit on the screen before I start my son? There is something similar, but the AC voltage, it is called "The builder 9.0" but I need for the automotive industry ... Thank you - Al

Try Multisim10. It allows you to perform any type of circuit and you can even check the circuit simulations using the software itself!

I do not know of such a program. Let me start with a Google search (es), or perhaps make an inquiry to the author of another program such recommendations.