Date: Wed, 07 Jun 2006 13:06:22 GMT From: Bob <uctraingnospamanet.com> Subject: Re: 95 towbar wiring
On Mon, 5 Jun 2006 18:22:58 +0100, "John Hudson" <mypcnospam.com> wrote: > I have just fitted a factory supplied tow bar and its electrical lighting >equipment to a two year old Land Rover. The wiring for the trailer lights >did not pass through a relay ( or do you mean some type of fuse). I am not >familar with the Saab in question but as on the three previous tow bars I >have fitted no relay for the lights. >What type of relay do you mean, I am interested in a relay of the type you >suggest. If the trailer lights overload the cars lighting circuit it will >operate an existing fuse. You could use any standard automotive relay. But, as I see it, you would need four - one would relay the brake lights, one for the parking lights, and one each for the turn signals. You would have one power source from the fuse box feeding all four but the trigger would be a tap from each of the other circuits. I would assume that a Saab kit would include a module that would handle all this. I've never seen their kits.Depending on the current flow, they might be able to do it with a solid state module. Or perhaps someone with circuit knowledge would be able to design that. However, I do know that the wiring for the current lights is fed from an Integrated Electronics module and I would not be comfortable pulling additional power through that.
