Before aiming the headlamps you should have a full tank of gas, and make
sure the tires are properly inflated.
Position vehicle on a level surface perpendicular to a flat wall (25 ft.)
away from front of headlamp lens
tape a line on the floor  (25 ft.) away from and parallel to the wall.
From the ground up  (5 ft.), tape a line on the wall at the center line of
the vehicle. Sight along the center line of the vehicle (from rear of
vehicle forward) to verify accuracy of the line placement.
Rock vehicle side-to-side 3 or 4 times to allow suspension to stabilize.
Jounce front suspension 3 or 4 times by pushing downward on front bumper and
releasing.
Measure the distance from the center of headlamp lens to the ground.
Transfer measurement to the wall (with tape) Use this line for up/down
adjustment reference.
Measure distance from the center line of the vehicle to the center of each
headlamp being aligned. Transfer measurements to wall (with tape) to each
side of vehicle center line. Use these lines for left/right adjustment
reference
A properly aimed left low beam headlamp will project the center of the low
beam hot spot on the alignment screen 8 in.  below the horizontal center
line and 5 in.  right of headlamp center line. A properly aimed right low
beam headlamp will project the center of the low beam hot spot on the
alignment screen 7 in.  below the horizontal center line and 9 in.  right of
headlamp center line wall

Glenn Beasley
Chrysler Tech