----- Original Language Text -----

If it's blue, it's a filament bulb with a blue cover over it.  Sounds like 
a poor connection, maybe at the instrument panel plug, but I suppose it's 
barely possible that the bulb has so much tungsten deposited on the inside 
that it has turned black.  It's more of a problem with these tiny bulbs b/c 
there's so much less surface compared to the amount of filament.  But you'd 
have to be running your high beams an awful lot.  Might also be bad contact 
where the bulb plugs into the flexi-circuit, but I tend to doubt it.  Or 
the series resistor going bad.  If you can, follow the volts around the 
circuit -- the only drops should be across the resistor and across the 
bulb, and those two should total to system voltage.  I would imagine that 
they're running the bulb at around ten volts, but don't know.  Could 
measure and find out if you need it, but it's a minor PITA.  I have a panel 
lying open; unfortunately it has a green LED so it won't match yours.

david

PS -- how does this Easy translator work in the other direction?
----- Draft Computer Translation -----

Si es azul, es una bombilla de filamento con una cubierta azul sobre lo. 
Los sonidos como una conexi�n pobre, quiz� en el tap�n de entrepa�o de 
instrumento, pero supongo es apenas posible que la bombilla tiene tanto 
tungsteno depositado en el interior que lo ha girado negro. Es m�s de un 
problema con estas bombillas b diminutas/c hay tanto menos superficie 
compar� con la cantidad de filamento. Pero usted tendr� que estar corriendo 
sus rayos altos un terreno atroz. Quiz�s sea tambi�n el contacto malo donde 
los tapones de bombilla en el circuito de flexi, pero tienden a dudarlo. O 
el ir de re�stato de serie malo. Si usted puede, siga los voltios alrededor 
del circuito -- las �nicas gotas deben estar a trav�s del re�stato y a 
trav�s de la bombilla, y esos dos deben totalizar al voltaje del sistema. 
Yo me imaginar�a que ellos corren la bombilla en alrededor de diez voltios, 
pero no saben. Podr�a medir y poder averiguar si usted lo necesita, pero es 
una PITA secundaria. Tengo un entrepa�o que miente abierto; 
desgraciadamente tiene un verde DIRIGIDO tan no emparejar� suyo.

At 16:45 3/31/2000, Jose R. Moscoso wrote:
>Fellows and fellaws:
>Some time ago there was a subject running around about high beam led light
>dimming to off.  I have just receive this fairy on my '84 Westfalia.  The
>LED was coming on dimmer and dimmer each time until know it is impossible to
>guess if its on.
>
>I don't recall having seen a final determination on cause, possibilities or
>cure for this, except that it was not clear if this was a bulb or an LED.
>Can someone help?

David Beierl - Providence, RI
  http://pws.prserv.net/synergy/Vanagon/
'84 Westy "Dutiful Passage"
'85 GL "Poor Relation"