Sounds as though the right taillight ground is corroded, if the backup
lights are using that path to ground.

Maybe pull that cluster and remove, clean & replace all the bulbs and
sockets

On Dec 3, 2007 12:05 PM, neil N <musomuso@gmail.com> wrote:

> first thing I'd check are connectors. Like the ones at the instrument
> cluster.
>
> Cheers,
>
> Neil.
>
> On 12/3/07, mordo <helmut.blong@gmail.com> wrote:
> > I'm no genius when it comes to wiring diagrams - I think it's somehow
> > related to math aversion. I have an electrical gremlin that makes me
> chuckle
> > a little that maybe someone can shed light on:
> >
> > When I use the right turn signal, the reverse lights flash along with
> the
> > turn signal. This doesn't happen when I use the left turn signal.
> Likewise,
> > when I put the van in reverse, the right turn signal lights up, solid,
> not
> > flashing. This morning I noticed that when I move the auto trans
> selector
> > from D to N, I can hear the turn signal flasher relay click. Or maybe
> it's
> > not the signal relay? That seems the most likely.
> >
> > Do these lights share the same circuit? If so, what and where is the
> most
> > likely fault?
> >
> > --
> > mordo
> > 1990 Carat
> >
>
>
> --
> Neil Nicholson. 1981 Air Cooled Westfalia -
> "Jaco"  (Bustorius) http://web.mac.com/tubaneil
>
> Engine swap beginings: http://musomuso.googlepages.com/home
>

--
Jake
1984 Vanagon GL
1986 Westy Weekender "Dixie"
Crescent Beach, BC
www.crescentbeachguitar.com
http://subyjake.googlepages.com/