Phil, if the same as my Federal Plus 2
(big assumption!), the two microswitches attached to the dash vacuum switch replace the two microswitches located in the light pods. The vacuum raises and lowers the pods. The two microswitches electrically activate the side / running lights and the head lamps. Sorry, thought I had posted a pic of the bracket and switch, but not finding it now.
Here are a few links to threads that include a link to the correct microswitch from Allied. The original Burgess switch is NLA, and superseded by Johnson Electric Mfr's Part #: XGG2-88Z1. They are a button type switch with both NO and NC contacts.
I also posted a wiring diagram for the Federal Plus 2 side light circuit; not sure if this is the same for the Federal Elan though. Note my Federal Plus 2 did not use the giant Lucas light relay thingy that seams to be a complete original equipment bodge, presumably needed to get the emergency flashers and side light head lamp circuits to work with minimal changes to the loom?
I understand some Elans use the pod mounted microswitches for turning on the headlamps and for the problematic "come up flashing" circuit. Not sure how the sidelights are handled with this configuration, and assume this was not part of a Federal configuration..
A side note. The provision of both NO and NC contacts in the Federal microswitches makes wiring the Toyota / Mazda pod motors easier. Details if req'd.
One of the treads shows another option, using lever style replacement micro switches mounted at the pods to replace the originals, which are sort of like door switches.
lotus-electrical-f38/micro-switches-t19608.htmllotus-electrical-f38/side-lights-t17589.htmlhttp://www.alliedelec.com/Search/Search ... 2f-0062|3|HTH