Tow bar wiring

[badger]

Van already had a towbar fitted when i bought it, which i presumed would be wired...bought a trailer today, but found most of the lights don't work. Looks like just the indicators and rear lights were wired up!
i've sussed out all the other conections, but am i right in presuming i'll need to fit a relay into some circuits? Adding 2 more 21w brake lights into the brake circuit might overload the wiring i presume?

[Ivorblueun]

brake lights should be ok as they are only on for short periods at a time if you have fog light on your trailer i believe its usual to fit a switch to turn the fog lights off on the towing vehicle when trailer is plugged up

[DiscoDave]

like dan say's i wouldn't worry about extra barke lights! haven't got any relays in my triler plug!!

[Mocki]

If the tow vehicle has read fog guards then the trailer "should" have them too, however most dont........

you can buy a 12n socket which should have the switch to disconnect the tow vehicle fog gaurds, but with a small trailer it isnt needed really, it only to stop glareback in your mirrors.....


just dont bugger about with scotch "botch" locks, 5mins longer now will save 2hrs in 6 months rewiring it properly......

[dp67bug]

white ............ brown on van earth 1
green.............green +black drivers indicator 2
yellow.............white +black passenger indicator 3
red..................red+black brake lamps 4
blue..................grey+white foglamp 5
brown.................red+grey side lamp 6
black....................black+grey side lamp 7

tow bar..................colours on
colours...................the wiring on the van lights