
Protected: stands rough treatment, accidental current reversals, etc.Fully snubbed against "spikes" and other hazards.Totally transparent: the car does not detect it.Monitors the trailer flashers, with both a built-in audible output and terminal outputs for a remote sounder or warning lamp.When the car "swaps" bulbs in the event of a bulb failure, the relay again interprets correctly and keeps the correct trailer lights on. brake and tail) the relay interprets the modulated signals and switches on the correct trailer lamps.ī. When the car uses a modulated power feed to make one single filament bulb perform the function of different lamps (e.g.

The following two examples are common in cars.Ī. No chatter, no dim lights, just on and off as they should be. The smart bypass relay has a controller that measures the signals from the vehicle's lighting systems against exact criteria to determine which trailer lights should be switched on. Many cars send complex or modulated power signals to switch their rear lights, so making the towing relay work correctly is not simple. Universal bypass relays do not interact with TSP or cut the reverse sensors out. If you want to make sure that your trips will not be held up by pointless breakdowns caused by malfunctioning electrical installations, then you should definitely invest in the accessories of most renowned producers, which can be found all over our website.Bypass relays are fitted to stop the vehicles light check control system putting a warning light onto the dashboard to suggest that one or more bulbs has blown when actually the trailer lights are taking away a small amount of electrical current.īypass relays are also used when wiring onto CANBUS systems to prevent any electronic component failure. Wiring harness for trailers Wiring harnesses for trailers can be as long as 8 metres and can have as much as 13 pins in their connector (for trailers with a GVW of 750 kg or more). The wiring harnesses sold at .uk are extremely robust and resistant to adverse weather conditions. It is therefore very important that you check the necessary dimensions before making a purchase or that you consult the purchase with our sales department. All electrical wirings sold at .uk have a specific length, which means that they are not universal in size and must be chosen carefully, depending on the trailer's transport surface dimensions. In light-duty trailers, all you need in order to mark the sides is a reflective tape, hence why such wiring harnesses will prove to be an ideal accessory. They are not equipped with connectors to side-marker lights by default, which would otherwise mean that they could be used in heavy-duty trailers also. Light-duty trailer wiring harnesses Wiring harnesses for light-duty car trailers allow the towing vehicle to stay connected to the rear/tail lights of your trailer.


Coupling head for square shaped drawbar (13).Trailer light kits | Rear trailer light sets (29).Trailer anti-theft devices & hitch protection (29).Rollers and accessories for boat trailers (29).

