Headlights don't work

[LeslieHedley]

Help. I know from searching the forum that it's common to have problems with the pods, but I've got a problem with dipped beam. The pods work fine and when I put my sidelights on the pods rise and I get dim dip. But when I click the switch to the second position for full dipped beam, they go out! It's just started doing this, last week they worked fine. I still have main beam, so it's not the column or dash switch. It can't be the bulbs because I get dim dip on the sidelights position and that suggests the wiring is ok. So what's the difference between dim dip and full dip? It's got me stumped. Oh, and I can hear the relay click when I switch from sidelights to dipped beam, so I guess that is working too. Any electrical experts out there have any ideas?

[LeslieHedley]

Thanks for all the advise chaps. It turned out to be a relay. The circuit diagram in the bible doesn't have the dim/dip wiring so my wiring didn't match it. I had to try every relay in turn until I found it. There are more relays for the headlights than you can shake a stick at. But at least I managed to identify it eventually.