Description
The Holroyd Smart Signal Adaptor is a specialized electrical component designed to ensure proper detection and operation of brake controllers in vehicles towing trailers. It’s particularly compatible with Holroyd BMPRO systems and is commonly used with Ford vehicles equipped with sway control, such as Rangers and Everests.
Key Functions
Load Compensation for Brake Circuits
The adaptor incorporates a 47-ohm resistor between its blue and white wires. This resistor increases the electrical load in the trailer’s brake circuit. The additional load helps the towing vehicle recognise that a trailer is connected, enabling the brake controller and sway control systems to function reliably.Compatibility Requirements
Note that this adaptor must be used alongside the Ford patch lead—the patch lead remains necessary for proper functionality in certain Ford models.Supported Products
It has been tested and confirmed to work with TUSON, DEXTER, and BMPRO systems, ensuring a fit with Holroyd’s range of products.
frequently Asked Questions
What is the Smart Signal Adapter used for?
It ensures correct detection and operation of trailer or caravan lighting systems when connected to modern tow vehicles, especially those using LED lights or advanced vehicle detection systems.Does it work with LED trailer lights?
Yes, it helps prevent issues such as flickering indicators, dashboard warnings, or the vehicle not detecting the trailer connection due to low current LED loads.What vehicles is it compatible with?
It is suitable for most modern vehicles towing trailers or caravans, including those with electronic stability control or sway control systems.Is installation difficult?
No, it is designed as a plug-and-play module. Just ensure the wiring and plug connections are correct for your vehicle and trailer.What happens if I don’t use one with LED trailers?
Without an adapter, the vehicle’s monitoring systems may misread the LED light load, causing warnings, lights not working properly, or disabling certain safety systems when towing.Will it interfere with my vehicle’s electronics?
No, when installed correctly it allows your trailer lighting circuits to match the expected load from the tow vehicle, so all systems work normally.What maintenance is required?
Very little. Keep connectors clean, dry, and secure, especially if exposed to dirt or moisture.
Tips & Tricks
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Check trailer wiring and plugs before installing the adapter. If there are faults or corrosion, fix these first.
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Use weather-resistant connectors, especially for coastal or off-road use.
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Test all trailer lights after installation to confirm correct operation and that no warning lights appear on your vehicle’s dashboard.
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Mount the adapter in a dry, secure location near the vehicle’s trailer socket but protected from road debris and moisture.
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If upgrading to high-output LED lights, use the adapter at the same time to prevent signal issues.
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After towing, especially over rough terrain, inspect plugs and connectors for wear or damage.
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Carry a spare 12V fuse for the towing circuit to quickly fix any loss of signal.
Product Specifications
| Specification | Value / Description |
|---|---|
| Model | Holroyd Smart Signal Adapter |
| Application | Ensures correct communication between vehicle and trailer lighting systems |
| Compatibility | Works with vehicles and trailers using LED or standard globes |
| Voltage | 12V DC (check model for 24V or dual compatibility) |
| Function | Stabilises and converts trailer lighting signals for correct detection |
| Installation Type | Plug-and-play adapter or inline wiring module |
| Construction | Durable housing for automotive and towing environments |
| Environmental Rating | Designed for outdoor use and vibration resistance |
| Use Case | Caravans, trailers, camper trailers, 4WDs, and towing setups |
| Maintenance | Low maintenance; occasional cleaning of connectors |
| Country of Manufacture | Australia |
| Warranty | Manufacturer-backed warranty for defects in materials and workmanship |
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