So, I found the wiring diagram for a 2015 Panigale 1299S here:
https://www.manualowl.com/am/Ducati/2015-Superbike 1299 Panigale S/Manual/10271?page=333#manual
You can zoom in to item #65, which is the headlight. You then find the following colored wires that correspond to the LED headlights function:
V key +12: W (white)
GND: Bk (black)
Hi beam: Y/Gr (yellow/gray)
Low Beam: Y/W (yellow/white)
Pilot Light: Y (yellow)
Unfortunately, the 1299S LED headlight I have in my hand, of which I am reasonably confident is from a 2015 bike (p/n 52010341B, date of mfg. 13/05/15) does not have the same colored wires as shown in the diagram above. Instead, I have the following solid colored wires:
Can anyone offer any suggestions?
Hi beam - Yellow/Gray to Yellow (headlight)
Low beam - Yellow/White to Green (headlight)
+12v - White to Red (headlight)
Pilot light - Yellow Blue (headlight)
-12v - Black to Black (headlight)
Use a Sumitomo HM-6p plug instead of butchering the headlight plug
You can cut off the relays and direct wire using the above plug.
or be really gangsta and add 2x diodes (or rewire relays if you must) so you can have low beam on during high beam.