mcc1979ian Posted August 5, 2016 Share Posted August 5, 2016 Ok so on my old plug i have a red, yellow, blue, brown, green, black and a white wire but on the tow bar i bought at the weekend i have a purple, black, red/orange, red/yellow, red/black, green/white, green/red, green/brown and green/purple wires. Would anybody know which corresponds to which? Quote Link to comment Share on other sites More sharing options...
western Posted August 5, 2016 Share Posted August 5, 2016 These are the vehicles wiring colour codes NOT the 7 core trailer wire.which are plain colours, red,white,black,blue,green,yellow,brown. plain purple is 12v permanent live feed red/orange = RH tail light red/yellow = rear fog light red/black = LH tail light & rear number plate light green/white = RH indicator green/red = LH indicator green/brown = feed from reverse switch to reverse lights green/purple = brake light L & R. Quote Link to comment Share on other sites More sharing options...
mcc1979ian Posted August 5, 2016 Author Share Posted August 5, 2016 Ah. Them colours are what's on the new tow bar but the solid colours are what's on the loom. Can they be mated? Quote Link to comment Share on other sites More sharing options...
western Posted August 5, 2016 Share Posted August 5, 2016 Yes, the trailer socket pins are numbered as noted in diagram ,view from the face the wires fit into, not where the trailer plug pushes in. the 12N trailer socket should have the plain colour wires which go up inside the vehicle & connect into the parent vehicles wiring loom usually in the right rear corner. Quote Link to comment Share on other sites More sharing options...
mcc1979ian Posted August 5, 2016 Author Share Posted August 5, 2016 So I'm guessing I don't have to connect the purple that's on the new towbar Quote Link to comment Share on other sites More sharing options...
western Posted August 5, 2016 Share Posted August 5, 2016 No, leave the purple unconnected but ensure it cannot short out on any metal. with a suitable fuse you can use it as a power feed in the rear. your 'new' towbar electrics, read like the previous owner used the vehicle wiring colour code wires, maybe to make his fault finding easier. Quote Link to comment Share on other sites More sharing options...
mcc1979ian Posted August 5, 2016 Author Share Posted August 5, 2016 New towbar i assume came from a much newer vehicle. It also has caravan electrics but thats a question iv yet to approach. Im thinking for that i need a voltage sensitive split charge for starters. Quote Link to comment Share on other sites More sharing options...
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