The diagram is for headlamps, The top wire to headlamps in diagram is voltage, fuse protected and hot all the time. On/off--hi/lo beams are controlled on the headlamp ground circuit, bottom wire coming from headlamps in diagram. The dimmer and headlamp switch are part of the headlamp ground circuit.
First check power to the headlights with a test light,you might just have bad sockets or a break in the wiring,while you have the test light in the haedlight connector wiggle all wires going to it and turn off and on your switch,if you see it the test light light up at all check where you are,also by pass relay with a paper clip and see if you get power,let me know what you find.
THANKS,TIM..
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dash lights don't work when head lights are on
Any update on how you fixed this? Having similar issues and have replaced switch and bulbs.
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