Audi Trailer wiring

[Robert Deis]

On Mon, 21 Jul 2003, George Harris wrote:

> Problem is when I put on the brakes, the proper bulbs light up, but the
> brake warning light comes on. Is the system detecting an imbalance
> between left and right?

You got it.

> Do I have to wire the left trailer brake light
> to the left car brake light, and the right trailer brake light to the
> right car brake light?

That might work, but there is some concern about the stock wiring holding
up under the extra current draw.

The reccomended solution sems to be a separate power module that draws
power directly from the battery and takes signal from the light harness.
You can draw the brake signal from upstream of the wiring module that
detects the imbalance.

--
------------------------------------------------------------------------------
  Rob Deis                  "Let the people know beforehand what the law
  MiB3347                      is and what they are to expect."
  rdeis at io.com                              -- 18th Congress, Rec. 75