86 vanagon GL

Last night about 2 miles from home I made a left  and lost the
headlights and the heater blower fan at the same time...
Luckily- If I hold the high beam/low bram switch I get high beams.  The
taillights work fine.

Full moon last night and living in the middle of nowhere made the drive
easy.
I haven't had time to check anything or crack open the Bentley wiring
diagrams yet.

Anyone have any suggestions,

Thanks,

chris