Renault logan won't start. Repair of a gas pump for a penny!

The Renault Logan 1 dorestyling does not start. Does not pump the gas pump. When you turn the key, the starter turns, there is a spark, but it does not start. We are looking for the cause, from A to Z (the sequence of solving the problem).
The circuit of the fuse box, which fuse and relay are responsible for the fuel supply, how to check the working gas pump or not, how and which contacts to ring with a multimeter, how to disassemble, get the gas pump. How to replace, get the motor (pump) and replace it with bosh for VAZ 2110 - 2112.