Join Date: May 2004
Location: Hazel Green, AL, USA
Re: Bushtec Trailer lights not working
Normally the fuse that feeds the isolator is the culprit. I would go ahead and replace it any way even if it looks good or at least jumper it to eliminate that as a problem. Then check the black wire coming from the isloator - it should go to the battery (-) terminal not a frame ground. I have had one of the internal relays go bad on mine so I replaced the isolator but that only affected one circuit not all the lights.
The red wire/fuse to (+) and black wire to battery (-) will kill all the lights if they are not hooked up.
2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT
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