Astra Transmission problem

Hello I hope you can help me I have a problem with a Astra 2004 starts in third and repair the box but the problem is still cheke lines, computer, module and everything is fine

You should scan to see if you give you any fault code, if you have any communication, it is because the transmission module is not working, if you give you a specific transmission code, that is blming the transmission, if you are not very difficult until you can miss a voltage or earth polo. You always have to diagnose before disarming because it is spent too much.

I scan it, I do not give the transmission entrance to the transmission, the module is already cheke and a seleenoid of the valve body does not work but the problem is that it costs 3000 and I am not sure that the fault
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