Towbar Wiring Diagnostics

Solent Towbars can now offer our customers a complete Vehicle specific wiring service using both wiring and industry leading diagnostics technology. Vehicle specific wiring(VSW) kits are individually designed on the requirements of each individual vehicle.

They are designed in accordance with the vehicle manufacturers requirements and when installed will ensure any towing related feature and safety feature is active and functions as required. So working in harmony with the vehicles electrical system and technology.

Here at Solent Towbars we have invested heavily in the latest diagnostic equipment, the Westfalia Diagnostic Tool.

The only tool at the moment specifically adapted for the towbar industry. This now enables us to fit Vehicle Specific Wiring kits and recode if necessary without the need for main dealer downloads or extra costs.

This tool is a must for any towbar fitting company that wishes to move on within the industry, without it, companies will be unable to utilise safety and comfort features built into vehicles from manufacturer.

VSW (Vehicle specific wiring)

An increasing amount of modern vehicles are now being equipped with electronic systems dedicated to towing, such as:

  • TSP (trailer stability programme)
    *This detects snaking on a trailer or caravan and uses the vehicles braking to bring it back under control.
  • Fog light cut out
    *This turns the vehicles fog lights off when a trailer is plugged in.
  • Reversing sensor cut out
    *This deactivates the vehicle reversing sensors when a trailer is plugged in.
  • Dashboard indication
    *Uses a light to signal trailer indicators are working.
  • Bulb failure detection
    *Can detect if a bulb is not working on the trailer.

*Vehicle make and model dependent

Many vehicles upon fitting VSW will require a vehicle-recoding download, which we can do with our Westfalia Diagnostic Tool.

"Vehicle specific wiring is the way ahead, it is more expensive than standard wiring but if you have features built into your vehicle…. Why not use them?"

Vehicle specific wiring (VSW) is an after market part, but is specific to your vehicle. When fitted it integrates into the vehicles electrical system and works any towing related features on the vehicle. (Sometimes this requires a vehicle diagnostic recode which we will do during the fitting.)

VSW is fitted using either factory prepared connectors, original vehicle harness connectors or connecting directly into the vehicles network via the can bus and other specified points using automotive grade connectors.


Quality towbars fitted with our fast efficient service by our fully qualified engineers