BMW E90 Max Brose Footwell Light Module Control Unit ECU FRM3R PL2 Lear 9240533

BMW E90 Max Brose Footwell Light Module Control Unit ECU FRM3R PL2 Lear is an original electronic footwell light control module designed for BMW vehicles. This component belongs to the Electronic control modules and controllers category, which ensures precise management of comfort functions and proper communication with the vehicle's electrical system. This solution is dedicated to users who expect stable lighting system performance and compatibility with the factory vehicle architecture.

Specifications and technical data

• SKU: 9240533-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9240533
• Substitutable numbers: 9240533, 61359240533, 9383050, 61359383050, 9187550, 61359187550, 9153779, 61359153779, 9230445, 61359230445, 9187563, 61359187563, 9159808, 61359159808, 9204540, 61359204540, 9166708, 61359166708, 9146059, 61359146059, 9187559, 61359187559, 9308371
• Category: ECUs & Computer Modules

Purpose and function of the FRM3R module

The presented controller acts as a central module responsible for managing the footwell lighting and related comfort functions in selected BMW E90 series models. As an ECU unit, it works with the vehicle's bus, overseeing the operation of interior lights in an integrated manner with other electronic systems. This maintains the consistency of lighting, signaling, and comfort component operations, which translates into predictable vehicle behavior under various operating conditions.

Construction, compatibility, and system integration

The FRM3R PL2 Lear module was designed as a factory component of the BMW electrical system, ensuring a perfect fit for the wiring harnesses, connectors, and software used in vehicles of this brand. As a part from the Electronic control modules and controllers group, it works with other body controllers, enabling correct data exchange and diagnostics using standard service tools. The presence of dedicated interchangeable part numbers allows for the selection of the appropriate variant for a specific car configuration, taking into account equipment versions and production years.

Before installation, it is recommended to verify compatibility by the OEM number and compare the hardware and software versions with the currently installed module. In many cases, after installation, coding or adaptation of the controller to the specific vehicle is required so that all lighting and comfort functions work to their full extent.

Condition, origin, and service application

The offered component is used, which makes it an attractive service solution for users looking for a factory module at a reasonable price. Such controllers are commonly used for repairs after flooding, electrical shorts, or damage resulting from lighting circuit overloads. Replacing it with an original dismantled module allows for the restoration of proper footwell lighting and related functions without the need for interference with the electrical system beyond the standard installation procedure.

Thanks to the preservation of the factory design and logic, the module works well with BMW diagnostic systems, facilitating error reading, actuator testing, and potential software updates at specialized service centers.

Installation tips and selection by part numbers

When selecting an FRM3R PL2 controller for a specific BMW E90, it is worth relying on the OEM part number and available interchangeable numbers, as well as vehicle identification data (VIN). This helps avoid compatibility issues, such as the lack of support for specific lighting functions or error messages on the dashboard. It is recommended to:

• compare the markings with the previously installed module,
• check the version compatibility with the vehicle's equipment (e.g., type of lights, comfort packages),
• plan for potential coding after installation at a specialized workshop.

This approach minimizes the risk of re-replacement and reduces vehicle downtime, which is particularly important for cars used daily.

Benefits of choosing an original BMW module

By choosing the BMW E90 Max Brose Footwell Light Module Control Unit ECU FRM3R PL2 Lear, you gain a controller designed specifically to work with BMW electronics, which translates into stable operation and predictable behavior of lighting systems. The original design reduces the risk of malfunctions typical of replacements with uncertain specifications. This solution is particularly beneficial for repairs where compatibility with the factory electrical architecture and the possibility of full diagnostics are crucial.

If you are planning a comprehensive repair or upgrade of the body electronics area in your BMW and need other components from the same group, such as light controllers, comfort modules, or body ECU units, check the available parts in the BMW electronic control modules and controllers category.

Expert support and selecting used electronics

When working with used controllers, it is important to correctly match them by part numbers, hardware and software versions, and to be familiar with installation and coding procedures. A detailed discussion of these topics, along with practical examples of selecting ECU modules and sensors, can be found in the Global Parts guide: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?. This will make it easier for you to plan your repair and consciously choose the right module for your BMW.