Led lights showing fault, what is the best resister to fit.
 

Since fitted led dipped h/ light bulbs it is showing fault , which canbus resister to fit ?.

Maybe a H11

You need to get a resistor that will draw the same kind of power as your (now missing) halogen bulbs. And of course make sure that they're rated for enough watts to not melt or start a fire.

There should be approximately 10 million resistors out there for this application - just google it.