broken indicators

[Pewee2000]

Iv been trying to fix a problem on my volvo
340 GL 1.7 which has been intermitant for a long time now. Basicaly the indicators are playing
up and one min they are working and the next they aren't. there is a buzzing noise that comes
on whilst trying to indicate, but only when the headlights are on. Iv tried replacing the multi
switch lever, but no luck.if u could help id appreciate it very much.
Peter Welton

[mgarageu]

have checked ground screwed to
the turn and headlights switch? hazard lights working or not?

[Janitor]

buzzing sounds like a relay.