Decided to travel down to Cornwall last night for the start of the family holiday (usually travel Saturday but decided to get an extra day be leaving early evening Friday
) but at about 2130 realised it wasn't so bright in front of the van. Pulled off at Tiverton, had a quick check and headlights were off. All other lights were fine (side, rear, full beam, dash lights). Did a cursory check of the fuses (after cursing a little!) and they all appeared fine too. So it was a call to Green Flag who arrived, checked all that they could too put to the point where it was very dark and no more could be checked at the roadside. We were then recovered to Bude on the back of a flat bed arriving at almost 3am 
Had a quick look around the forums to try and work out what I should be checking; discounting fuses, bulbs and the actual control stalk, I'm thinking relay (passenger side front wing - nearest the cab). I've had a relay go before - one for the side/rear lights and replaced with a bongobits part.
Are all of the relays along that wing the same? If I swapped over the Headlight and Rear/Side relays would that be the test to confirm my assumption?
If I can pinpoint this as being the problem I could get the part shipped to my holiday address quite quickly.
Any advice would be gratefully received
I've no idea how long the lights have been out as in these Summer months I'm rarely out at night-time and only had to have sidelights on in the rain. My own fault for only checking oil/water/tyres before journeys....
. and the front 2 on the off side.