Clicking noise under passenger side dash, headlights flash when off? on 2005 Ford Explorer Sport Trac

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
Does this intermittently, continues to click when lights are on
(3) Answers
1. Access the driver's blend door actuator, located to the left front of the center console, just under the dash.

2. Put your hand on the actuator, if this is the clicking noise you are hearing, remove the actuator and verify the door is not sticking, if the door is not sticking, replace the actuator.

3. Note, it is not necessary to remove the dash to replace the actuator.
as far as your lights flashing that could be another issue.
Qualified Local Ford Shops
Qualified Ford Shops For This Repair