Land Rover Discovery Sport L550 Windscreen Rain Sensor Module CPLA-17D547-AN

The Land Rover Discovery Sport L550 Front Windscreen Rain Sensor is a component from the Electronic Control Units and Controllers category, responsible for the automatic operation of the front windscreen wipers. Precise precipitation measurement translates into driver convenience, improved visibility, and more comfortable operation of a Land Rover vehicle.

Specifications and technical data

• SKU: CPLA-17D547-AN
• Mark: Land Rover
• Condition: Used
• OEM Part Number: CPLA-17D547-AN
• Substitutable numbers: CPLA-17D547-AN, CPLA17D547AN, LR112878
• Category: ECUs & Computer Modules

Purpose and Function of the Rain Sensor

The front windscreen rain sensor in the Discovery Sport L550 model works with the wiper system and the vehicle's electrical system, analysing the amount of water on the glass and sending a signal to the body control module. This allows the wipers to operate automatically, without the need for constant driver intervention.

This component is particularly important in daily vehicle use because it:

• ensures quick response to changing weather conditions,
• reduces the risk of temporary loss of visibility,
• enhances driving comfort in rain and drizzle,
• supports the proper functioning of comfort and safety systems related to wiper operation.

Electronic Control Unit – Characteristics

As part of the Electronic Control Units and Controllers group, the rain sensor acts as a precise optical-electronic transducer. It reads changes on the windscreen surface and converts them into an electrical signal, which is then interpreted by the vehicle's control system. A properly functioning module:

• maintains stable communication with the vehicle's electrical system,
• ensures repeatable, predictable wiper responses,
• limits unnecessary operating cycles, which can contribute to reduced wear on the wiper mechanism.

Benefits of Using an Original Land Rover Module

Choosing a rain sensor dedicated to the Discovery Sport L550 allows you to maintain the factory logic of the system's operation. Proper matching to the windscreen, wiring harness, and body control modules translates into:

• guaranteed compatibility with Land Rover electronics,
• no need for modifications to the installation or mounting,
• consistent operation with other comfort functions, such as automatic wiper modes.

A component from this group is a good choice when replacing a damaged sensor after a collision, replacing the windscreen, or in case of system errors related to wiper operation.

Condition and Application in Vehicle Service

The presented rain sensor is offered as a used part, which is an attractive solution for users looking for proven components at a reasonable price. This type of module works well for both routine repairs and for restoring full vehicle functionality after replacing the front windscreen.

Before installation, the standard service procedure is recommended, including checking the wiring harness, connectors, and – if necessary – adaptation in the vehicle's diagnostic system, in accordance with procedures used in service centres for the Land Rover brand.

Land Rover Electronic Control Units and Controllers

If you are looking for other Land Rover Electronic Control Units and Controllers, check out our dedicated offer: Land Rover electronic control units and controllers. This will help you easily select compatible components for your vehicle within a single, cohesive category.

More About Electronic Modules in Modern Cars

Modern cars, such as the Discovery Sport L550, utilize an extensive network of controllers and comfort modules. To better understand how similar systems work in other brands and how to safely use parts from dismantling, it is worth reading the guide: how to care for electronic systems and modules using parts from dismantling. This is a practical addition to your knowledge when planning repairs and upgrades of car electronics.

Summary

The Land Rover Discovery Sport L550 Front Windscreen Rain Sensor is a functional component of the comfort system, responsible for the automatic operation of the wipers and improving visibility in difficult weather conditions. As a specialized electronic module, it is an important link in the body control system, and its proper functioning directly affects the convenience and safety of daily driving.