Headlight Leveling Motors
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 Honda Odyssey, 2016 Honda Odyssey, 2015 Honda Odyssey, 2014 Honda Odyssey, and 2013 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.
The headlight leveling motors are located behind both headlights, and they adjust the headlight's vertical position based on the voltage signals (between 2-11 V) received from the headlight leveling control unit.