Problems with Chevrolet Corsa

I have a corsa and it does not start, gasoline does not reach the engine, take out the pump hoses and not pull any gasoline and gasoline I have more than half a tank, my question is, is the gasoline pump an electrical problem or something else?

There are some elementary tests, such as the very particular noise that the pump makes when giving the contact, with a logic tip test if there is a voltage, and earth, there are other tests not as elementary as they are to try the relief, the fuse, and the timer, if you removed the hoses and there is no pressure you have these tests I hope I have helped you.