Not sure I understand the question
Ford uses a Brown wire for 12volts to all the Parking lights
In the front there can be a dual filament bulb that has a brown wire for Park filament and another color for Turn filament(turn filament is brighter than Park)
The side markers just have the one brown wire
All have a Ground wire as well, usually solid black color
Brown wire is a common wire on both sides, same wire shared, even in the rear
If you have keyless entry the brown wire comes from a Park Light Relay, so the Keyless entry module can Flash the Park Lights when locking or unlocking
The high beams share a common wire and fuse, light green/black wire, so that wire will be on both sides
Low beams each have a separate wire and fuse, specific to that side
High or low beams both go thru the Multi-function switch(turn signal stalk) before going out to the headlight bulbs
High beams are used for DRL(daylight running lights) so if you have that option then they will be on when driving but at about 70% of brightness, DRL module "pulses" the voltage to lower it and the brightness, called PWM
DRL does not go thru multi-function switch
This is the same for 2000 and 2001 as far as my diagrams show