Yes, if you can find the valet switch. A clever installer can put this switch anywhere though. It's basically a black button, usually the wire that runs to the button is a flat, thin gray wire. You can follow those procedures that you have if you can find that button.
Looks a lot like the switch below except that the collar around the button is chome. There is part that is right under the button is a threaded so that what you do is you drill I think a 5/16" hole, push the head of the button through the hole, and use a nut to tighten the button down from the top. The button is usually harder to find than the brain. But if you can peek behind and find that gray wire, you can trace it to the button most of the time. It all depends how clever your installer was. Look for a shiny little black button with a thin chrome hex nut around it. It is possible to leave this valet button out as well but most installers will put it in.