VOLVO 850 BRAKE LIGHT NOT WORKING

I Have No Brake Lights. The Bulbs Are Good, Fuses Are Good. Changed The Stop Light Switch Out A Few Months Back. So It Makes Me Think It...

First I Put A New Bulb In And Cleaned The Contacts, Nothing. A Friend Checked For Power And Found None. He Said My Haynes Manual Schematic...

Brake Lights Do Not Work. Fuses And Bulbs Have Been Replaced.