advise on wiring

[globalmaa]

so my horn doesn't work, signals don't work and brake light doesn't work. the brake light did work until a day ago. any advise would be great. i took horn off and hooked it to battery and yeah it works hooked it back up to brown and pink nothing.

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[Grinder]

Check the black ground wire comming from the left switch assembly for the horn, signal problem. not sure what year your bike is but maybe fuses?