Date: 2 Jun 2006 08:09:13 -0700
From: "R. Frist" <>
Subject: Re: 95 towbar wiring

graham wrote: > Does anybody know whether a relay is required when wiring in the trailer > lights (just brake & indicators)? > As a matter of course I'd think isolating the electrics like this would > be a good way to go. > You should be good to go as is if the trailer has the European lighting system (separate turn indicator wiring) and it only has one set of lights. With the U.S. system I use a simple converter for our small boat trailer. A relay is called for if the trailer has electric brakes. One should not be pulling such trailers with a Saab in any case.

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