Tony,
Typically the headlight switch does not use a fuse, there is usually a
circuit breaker built into it. The classic symptom of that is the lights
will work then blink off as the breaker pops then they will work again then
go off and etc etc until the problem is fixed.
Id say dimmer switch, as it is the next link between headlight switch and
headlights. IF you have that sentinel system then Im not entirely sure,
otherwise here is all you need to do to check the dimmer.
Unplug the dimmer, take a 12 volt test light and clip one end to ground, any
chassis metal should work, then take the test probe end and touch the center
terminal of the plug that goes to the dimmer, if you have power there then
the electricity is going from the headlight switch down to the dimmer. If
not, then its upstream at the headlight switch most likely.
If you have power at the center terminal of the dimmer switch plug, take a
short piece of wire and go from that terminal to either of the other two
plug terminals and when you turn the headlights on one set of your lights
should work, hi or lo will depend on what one of the two outer terminals you
connected to. Then go from the center terminal of the plug to the other
outer terminal and the other set of lights should come on.
The dimmer is just a single pole double throw switch, it sends power from
the headlights to either the hi or the lo beams, they are cheap to buy and
easy to install and rather generic for a lot of years.
If that doesnt help or you have questions, send me an email or catch me
online!
Mikey
62 Crown Coupe
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