Wiring a towbar

popa smurf

Posted this over in the motor tread and there was no takers or chancers. I am sure some of ye have wired up a towbar to a car or jeep at some stage I am wiring a towbar to a 2010 mazda 5 they don't seem to be any wiring harness for this model, just wondering could I just cut in to tail lights on car and tape up securely what ye think.

patsy_mccabe

Is it the socket or the trailer plug you are wiring?

popa smurf

Socket to car

patsy_mccabe

Get an auto electrician to do it. A handyman job could end in disaster.
I have wired trailer plugs plenty of times, but not the same.

mad-for-tar

Considering the age of the car, I’d say it’s CAN Bus electronics so you’re going to need a kit that has an interface box as you can’t wire the 7 pin socket directly into the tail light clusters, will cause all sorts of grief. With interface box, you have a battery supply to it, the tail light clusters are wired to the box to give the box signals and the 7 pin socket is wired to the box but uses the power supply to light the bulbs on the trailer so it doesn’t interfere with the cars circuits directly.

Can be done yourself if handy with electrics etc., otherwise as Patsy has said, get an auto electrician to put one on for you.

popa smurf

mad-for-tar wrote: »

Considering the age of the car, I’d say it’s CAN Bus electronics so you’re going to need a kit that has an interface box as you can’t wire the 7 pin socket directly into the tail light clusters, will cause all sorts of grief. With interface box, you have a battery supply to it, the tail light clusters are wired to the box to give the box signals and the 7 pin socket is wired to the box but uses the power supply to light the bulbs on the trailer so it doesn’t interfere with the cars circuits directly.

Can be done yourself if handy with electrics etc., otherwise as Patsy has said, get an auto electrician to put one on for you.

Thanks for that I will have a look for one of those kits and have a go myself , can't be too difficult only a few wires what can possibly go wrong. TBH my garage man is a pain in the arse, a sound lad but he works at a snail's pace and I am looking for a bill of him with 3 months for a few other jobs he did for me which I want to pay while I still have a few quid left.

9935452

They are called a bypass relay.
Easy enough to install.
I put one on sn audi a few months ago

There are plenty of videos on you tube for them and how to do it