You must remove the dash panels to gain access to the switch here are some diagrams (below) that will help you get the job done.
Please let us know if you need anything else to get the problem fixed.
Cheers, Ken
Images (Click to enlarge)
Jul 24, 2017 at 3:51 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.