Hi,
Sorry to thread revive but I'm having a similar problem with my Peugeot 307SW, 2007 model year.
I have bought a proper (or so I believe, it went straight on) 307SW towbar from a breakers along with the loom to go with. I'm struggling with the wiring.
The pictures hopefully explain. I have worked out that the towbar loom plugs into each light cluster, and that there is another plug for each light cluster. That leaves two green/yellow stripe wires (earths I'm sure) and then a two pin connector, which on one side has a large red and small brown wire going to one terminal, and a light grey to the other. On the vehicle side, however, I have just a large plug with a large red wire to it, then a ten pin plug (which only has five wires going to it - white, purple, light blue, brown and red). Only the purple wire seems to have a permanent live to it.
My question is really two questions.
1 - can I use what I have here between the vehicle plugs and the towbar wiring to make it work?
2 - if I can't, is there any harm in using the purple wire from the 10 pin plug to run a towing relay? (Aka where does the purple wire go?).
Blue plug is towbar plug, other two are vehicle plugs.
Close up of vehicle plugs.
Vehicle plugs.
Towbar plug.
Thanks in advance.
Jack.