The six pin plug from the bike shows all pins shorted to ground. This on the headlights. I have a 2008 Roketa 250. Also I cannot switch from lo to hi.

Well, electricity is electricity and wiring circuits are wiring circuits. I do not have a 2002 fxdl electrical service manual either so cannot help there. On a 2003 the white wire goes from the headlight to four pin connector 38B and from there to four pin main harness connector 38A pin 2 and from there to connector 20A pin 4 and from there to (fxdl only) connector 21A pin 2 to connector 21B pin 2 to high beam indicator light which has BK wire ground going to 21 B pin 6 to 21B pin 6 after which it joins other BK ground wires to speedo and to 20B pin 12 and then to 20A pin 12 to TS/TSM pin 12 (ground)

POWER from ignition switch into lighting 15 amp fuse by connector 38 pin C R/BK and out from fuse by BE to connector 24A pin3 and out connector 24B pin 3 BE into handlebar switch then out from handlebar hi/lo switch into connector 24A pin 4 W and then out from 24B pin 4 W to connector 20A pin 4 W (which joins to speedo connector 20B W and also goes to connector 38A pin 2 W which goes to 38B W pin 2 to the headlight high beam element on the right side pin with the low beam element connection on the left side (on the wiring diagram) (Ground wire is also on the (diagram) right side and goes also to HDI position lamp is on the bike and HDI position light power is from connector 38B pin 1 O/W etc.


Connector 20 is a 12 place Multilock is console gauges connector located under the console on fxdl

Connector 21 is a 10 place Multilock console gauges connector located under the console on fxdl

Connector 24 is a 6 place Deutsch left hand controls and horn connector located on the frame backbone

Connector 38 is a 4 place Multilock headlamp connector located on the frame backbone

What kind of bike?

Check the ground, the resistors are accully resisnting the Negitive Current.