Question: how to house train a 3 year old yorkie?
Answer: Place several puppy training pads down on the ground next to each other to cover a few square feet. ... 
Feed your Yorkie and take the dog to the pads about 20 minutes after eating. ... 
Give the dog a verbal bathroom command, such as "Potty." If your dog eliminates on the pad, click a training device and give the dog a treat.