Check engine with trailer connected

[Larry Newman]

Mark - Do I understand this converter to use the signal from the
directional/brake/parking brakes to activate the relays which direct 12V
from the battery to the appropriate trailer bulb?  And this circuitry
doesn't convince the Audi sensors that something requiring a warning is
happening?

Larry

I would suggest a standard converter box.  They range in price from $29.
to
$59. and are wired up to the factory lights, but also to separate ground
and
+12V power.  The lights then just activate solid state relays and not
the
lights themselves.  Most European cars are MUCH more happy with this,
and
you'll see why if you look at the wire gauge size running most tail
lights.

Mark Rosenkrantz
AudiBiTurbo at aol.com