buzzing light box

[350matt]

Gents

Got a slightly unusual problem, when the main headlights are turned on the light power relay box ( metal cased one) starts to emit a high pitched buzzing noise?
This is on both dip and main, fine on sidelights.

Any ideas other than replace the box?
Could it be something else in the circuit?

Matt

>> Edited by 350matt on Thursday 27th October 17:22

[simonsparrow]

Any different between ignition on/off? There is a 'dim dip' function which provides dimed headlights with ignition on, sidelights on.

Drove me mental when I re-wired mine with direct feeds.

Other than that, try removing the fuses for the headlights and see if its load related.

[350matt]

[redacted]

[simonsparrow]

I had to re-wire mine, as the main connections do burn out. Fairly common to have to do this.