Agreed. The pump will only work if the control board circuitry is working and supplying it with a switching voltage. Thus if the pump checks out OK, this is where to start looking using the wiring diagram.
Note that these motors are usually indirectly controlled via a solonoids and not directly via a smaller switching current from the control board.
Thus if the solonoid receives a voltage from the board and not responding it will point the finger to the solonoids which can be easily tested for coil continuity with a multimeter.