Trailer plugs &
towbar wiring.

New towbar? Plug not working? Lights playing up on the trailer? We install, repair and diagnose every type of plug and towbar wiring setup.

Overview

Trailer and towbar wiring causes more headaches than most people expect. Connectors corrode, earths fail, and modern vehicles need proper wiring kits that talk to the body control module rather than just splicing into the rear lights — which can cause warning lights and even damage on newer vehicles.

We install proper towbar wiring kits — including smart modules where required — and we repair trailer wiring, plugs and connectors so they actually work the first time you hook up the trailer. No more wiggling the plug in the rain trying to get the indicators to come on.

What we cover

  • 7-pin flat, 7-pin round and 13-pin Euro plugs
  • Vehicle-side towbar wiring installs (including smart bypass modules)
  • Trailer-side wiring repairs and full rewires
  • Brake controller installs for electric trailer brakes
  • Caravan electrical hookups and battery charging circuits
  • Reverse light, fog light and auxiliary power on towbar plugs
  • Plug and socket replacement on car or trailer
  • Fault diagnosis when lights, brakes or indicators aren't working

When you need this

  • You've just had a towbar fitted and need it wired up
  • Lights on the trailer or caravan aren't working properly
  • Towbar plug is damaged, corroded or has the wrong fitting
  • Adding a trailer brake controller for electric brakes
  • Vehicle showing fault codes or warning lights when towing
  • Caravan or camper needs auxiliary power and battery charging while towing

Our process

We use the correct OE wiring kit or smart module for your specific vehicle — modern cars often need a module to control trailer lights properly. Connections are sealed and routed cleanly, and we test every function (indicators, brake, tail, reverse, fog and 12V aux) before we leave. For brake controllers we calibrate the gain to your specific trailer.

Why us for trailer wiring

We do a lot of towbar wiring and we know which kits work for which vehicles. Cutting corners with cheap connectors or splicing into rear lights causes problems down the track. We do it once, do it right, and you'll never have to fiddle with the plug again.

Ready to book?
We come to you.

Fully mobile across Wellington City, Lower Hutt, Upper Hutt and Porirua. Call us or send a message and we'll get you booked in fast.