2001 Dodge Dakota Recirculation Door

We have a 2001 Dakota Quad Cab and it has started allowing air to come through the air vents when the truck is moving. Although the switch is
set to off air still flows through the vents as the truck is traveling. I believe the recirculation door is a fault but I don't know how to access it, so I can repair the door. Any help would be great
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.