Towbar & trailer wiring

One indicator not working, brake lights that cut out over bumps, or a trailer plug that’s corroded solid — trailer wiring takes a beating from water and road grime, and it shows.
Signs you need this
- One trailer light works, others don’t
- Lights work sometimes, cut out over bumps or corners
- Trailer plug pins are corroded or bent
- New trailer or caravan needs wiring fitted for the first time
- Towing electric brakes that aren’t engaging properly
What we do
We check both ends of the connection — the vehicle’s towbar wiring and the trailer’s own loom — since an intermittent fault is often a corroded pin or a loose earth rather than a broken globe. New installations are wired to suit the vehicle’s existing lighting system, including LED-compatible wiring where needed.
What it costs
A straightforward plug or connector repair is a quick job. A full towbar wiring installation on a vehicle that’s never had one costs more and depends on the vehicle. We’ll estimate before starting.
What we work on
Cars · 4WDs and utes · Trailers · Boat trailers
Questions
- Can you fit trailer wiring to a car that’s never had a towbar?
- Yes, including wiring compatible with LED trailer lights.
- Why do only some of my trailer lights work?
- Often a corroded plug pin or a bad earth connection rather than a blown globe — we test both ends to find the actual cause.
- Is this a quick job?
- Most plug and connector repairs are — a full new installation takes a bit longer.
- Do you do 7-pin and 12-pin plugs?
- Yes, and we can advise which is right for your setup.