Set feeding times when you can be home to take puppy to the bathroom.  That usually triggers a ‘go response.’ So does walking the dog, allowing the muscles to do their work to help them void their wastes. 

The hard part will be to maintain the same schedule on the weekends.  You may be tempted to sleep in, but for the sake of puppy and the various corners of your home, keep to the status quo as much as you can. You can always go back to bed once he’s done his business. 

Offer puppy praise or discipline when he deserves it.  When it is time to go outside, lead puppy to the area that you have designated as his bathroom.  Be patient while he does his business.   

Think up a command to use each time he goes to the bathroom.  Afterwards, praise him for doing well. 

Do this as many times a day as you need to in order for puppy to remember the spot.  This includes using the same route to reach the back yard.   

Keeping everything the same will help speed up the process and make it easier for puppy to learn.  Be patient with puppy as he learns his new routine.