Wabco 4461860000 Trailer Detection Module

Description

The Wabco 4461860000 Trailer Detection Module is a critical component within a vehicle's braking system, specifically designed for use with trailers. It integrates into the Brake Control Unit (ABS & ESC) to accurately detect the presence and status of a trailer, enabling optimized braking performance and stability. This module operates within a temperature range of -40°C to +75°C and utilizes a 24V system. Its dimensions are 38 x 83 x 130 mm, and it is designed to meet OE specifications with a protection class of IP 30 (IEC 529). This ensures reliable operation and enhanced safety by providing accurate trailer information to the braking system for improved control and responsiveness.

Key Features & Benefits

This little module basically tells your vehicle if you’ve got a trailer hooked up or not. It monitors the trailer wiring – things like the lights and ground connection. It sends a signal to your truck’s computer saying, “Hey, there’s a trailer back there!” It doesn’t control anything directly, it just provides information. Some modules can even identify if there's a problem with a trailer light, like a burned – out bulb. It works closely with your brake control system and your ABS/ESC. When the module detects a trailer, it tells the brake control to adjust how it works. Modern trucks use that information to account for the added weight and length of the trailer, so your trailer brakes and the truck’s brakes work together properly. It’s also crucial for things like trailer sway control – if your truck detects sway, it can use the brakes to help straighten things out. Without this module sending the right signals, those systems can’t perform as they should.

Symptoms, Risks & Replacements

Honestly, it’s a safety thing. It makes sure your truck 'knows' what's behind it. If this module fails, your trailer brakes might not sync up right with your truck's. You’ll notice if you're trying to slow down and it feels like the trailer is pushing you around, or if the trailer brakes feel weak. It can also mess up trailer sway control, making things unstable. It's a relatively small part, but it plays a big role in keeping everything under control when you’re hauling something. You can usually find these fairly easily; we stock a good range at Fixparts Online, and other auto parts suppliers will too.

Warranty Information

Wabco Trailer Detection Module (MPN 4461860000) comes with a 1-year warranty.