I looked up your model number and this dishwasher does not have a mechanical timer with contacts.
The same pump and motor washes and discharges.
The diagram I looked at for this model shows a separate drain pump.
The way I would test it is with a volt meter. During the wash cycle I would check to see if I had voltage to the main motor. If I had voltage and the motor did not run then I would replace the motor.
If you do not have voltage to the motor you would need to trace it back with your meter to see why, but chances are if you had no power to the motor the control board would be at fault.