How do you change the AC relay in a 2003 Toyota Avalon?

To change the AC relay in a 2003 Toyota Avalon, first locate the fuse box, which is usually found under the dashboard on the driver's side or in the engine compartment. Open the fuse box cover and identify the AC relay, typically labeled on the diagram inside the cover. Use a flathead screwdriver to gently pry the relay out of its socket, then replace it with a new relay by pushing it firmly into place. Finally, close the fuse box and test the AC system to ensure it's functioning properly.