Discussion in 'General Harley Davidson Topic' started by tdward, Sep 1, 2014.
What would cause headlights, auxiliary lights and running lights to shut down all at once
Power supply (fuse) is my 1st thought.
Always check to see if you have needed power and if not, trouble-shoot the path of supply.
gotta be relay or circuit breaker in there somewhere. my '10 has a "high current relay" that will cause the same symptoms.
Do you have ignition? The contacts in the switch may be dirty
if you check your fuse and it is good then check out the lighting relay, they seldom go bad but it does happen, I know, long ride home in the dark they don't cost much so I carry a spare one now. mine was on a 2010FLHTC
Year make and model please....:s
The OP has a 1999 ultra classic.
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