In '86-91 Vanagons, the outside headlights have both low beam and high beam filaments in them, and change from one to the other when you turn on the high beams;  the inside high beam lights come on at the same time.
 
At least, that's how our '91's headlights work - but it's a Canadian market model.  Maybe the US market square headlights were different.
 
(On a side note, the low beams on our 2003 Toyota Matrix stay on when the separate, inner high beams are turned on.)
 
James
Ottawa, ON
 
> Date: Sun, 6 Apr 2014 18:49:26 -0600
> From: OlRivrRat@COMCAST.NET
> Subject: Re: Headlight Operation
> To: vanagon@GERRY.VANAGON.COM
> 
>          ~ Something like this ~ It's a '90Westy ~
> 
> https://picasaweb.google.com/109991183317103413704/VDUBARU?authkey=Gv1sRgCMW42OH705nRDA#5999344609026723170
> 
>         ~ Sorry about the DelayedResponse ~
> 
>                                                                                         ORR ~ DeanB
> 
> 
> On 30 Sep , 2013, at 10:07 PM, JRodgers wrote:
> 
> > Was there ever a model year of Vanagon with dual headlights where both
> > high and low beams were on at the same time??  Like low beams are just
> > on  and when the dimmer control switch was pulled the brights come on
> > and the low beams remain on as well? Or something simmilar?
> > 
> > Just curious.
> > 
> > John