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B&Q£12.57Visit shop B&Q - Twin 2 Way 12V Bypass Relay Module For High Load Trailer Side Lights
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This guide is for users of the AB Tools Twin 2 Way 12v Bypass Relay Module (TR448), designed to manage high-load trailer sidelights. It allows you to safely operate trailers with numerous sidelights without overloading your vehicle's electrical system. A key benefit is its ability to support up to 60W per sidelight circuit. However, it's essential to ensure correct wiring to prevent electrical issues.
| Model Part Number | TR448 |
|---|---|
| Brand | AB Tools |
The relay can handle up to 60W (5A) per sidelight circuit, with a total unit load of 10A (5A per sidelight circuit).
This relay operates on a 12V system.
Connect the brown wire to the right-hand vehicle sidelight, the black wire to the left-hand vehicle sidelight, the white wire to the vehicle's earth, the 12V terminal to the battery, the 7 terminal to pin 7 of the trailer socket, and the 5 terminal to pin 5 of the trailer socket.
Yes, a suitable fuse should be used on the 12V power connection for protection.
No, the relay draws very little current from the vehicle's sidelight circuits, so it should not trigger any fault codes.
Check all wiring connections, ensure the fuse is intact, and verify the trailer lights are functional.
Mount the relay module in a secure location, away from moving parts, heat sources, and moisture.
Check the wiring connections, ensure the fuse is intact, and verify the vehicle's sidelights are functional.
Check the 12V power connection and the ground connection. Ensure the fuse is correctly installed and not blown.
Check all wiring connections for tightness and corrosion. Check the trailer's lights for any faults.
Double-check the wiring to ensure there are no short circuits or incorrect connections. The low current draw should prevent this, but re-checking is important.
