Tow bar sockets does not have power

[dgk]

I am busy installing a tow bar to my Tiguan. Fortunately, the car came with the trailer preparation wiring. I have purchased a PF Jones Dedicated Wiring Kit for the tow bar socket, which includes a vehicle-specific trailer module. The installation was straightforward, and I could not be more than happy. That was until I tested the tow bar socket with a multimeter. I have gone over the installation and proof all connector fittings to be 100% and proofed the earth to be 100%, there are no blown fuses, but the socket does not have power. The trailer module LED do come on when I connected the battery terminal, but I do not get any response from the trailer controller through OBDeleven.

Will a faulty module cause this power issue? My logic tells me that the function of the module is to let the car know about the tow bar and when a trailer is connected and to activate the relative features.

Does anyone know what I can do next to resolve the problem?

[Guest001]

Hook the trailer up and see if lights work

[dgk]

I did, hence using my multimeter.

[dgk]

I have contact PF Jones technical support. They said that the reason the tow bar connector does not have power is due to the CANBUS which is not wired to the harness. Where do I find the CANBUS wiring for the pre-instaled trailer harness? I will start a new thread with the heading “CANBUS wiring for the Tow bar”.