Washer spins but won't drain

Hi I have a Maytag Neptune . The machine will spin but does not drain the water. Is this a pump problem or something else.

You need to access the pump. First, check it to see if there is an obstruction (like a coin on the discharge flapper). If no obstruction, disconnect it and put a test cord on it. plug in the test cord and see if it runs. If it does, the problem is probably the main control board. If not, replace the pump.

I Have accessed the pump and with the test cord it works. I may need to explain further that when the washer spins with a load it does not drain but when it is empty and I put it on the spin cycle it will allow it to drain sometimes. Do you still feel that this is a control board issue or could it possibly be something else like the pressure switch on top of the pump. Also if you feel it is the control board the online schematics show it behind the control console on top of the machine but when I was under my machine I noticed a similar board with the electrical leads coming out of it . Which board is it ??? HELP