Main beam and driving lamp

[bootie3367]

Hello everybody, just checking my lights prior to annual test and found that the main beam and the same side driving lamp does not work. Checked the lamps with 12v direct and all is good.
It's a 1989 square headlight model. I thought the fuses so checked them, nothing untoward there, the sidelight works but when checking the voltage at the connection to the main beam and the driving lamp there is nothing.
I have not been doing anything in that area at all so I am now at a loss.

Oh the dipped beam for that side is fine, and both the dipped and main and the driving lamp work fine on the other side.

Anyone got any ideas please?

Cheers
Jon

[Hacksawbob]

Earth crowns above fusebox probaly need attention. Look in the wiki link at top of page.

[bigherb]

Check the multiplug C (bottom middle one) at the rear of the fusebox not unknown for the contacts to overheat and melt.

[bootie3367]

Earth crowns it was! Just cleaned up and everything working fine again.
Just got to book the ITV (MOT) ASAP and I'm back on the road again!

Cheers for the advice chaps

Jon