BMW E87 LCI Max Brose Footwell Light Module Control Unit ECU 9340339

The BMW E87 LCI Max Brose Footwell Light Control Module is an original part from the Electronic Control Modules and Controllers group, designed to manage lighting in the footwell area. A properly selected controller ensures stable operation with the BMW electrical system and reduces the risk of errors in the comfort system and excessive load on the onboard network.

Specifications and technical data

• SKU: 9340339-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9340339
• Substitutable numbers: 9340339, 61359340339
• Category: ECUs & Computer Modules

Application and Function in BMW Systems

The presented footwell controller is a dedicated component for the BMW 1 Series facelift models (E87 LCI), responsible for precise control of interior lighting in the foot area. A correctly chosen module maintains consistent operation with other electronic units in the vehicle, such as central body modules or comfort controllers.

Proper selection of the module for a specific car configuration is crucial to avoid communication issues on the bus and unwanted error messages on the instrument cluster. This type of controller is designed to work with the original BMW wiring harness and software, facilitating integration with the existing system.

Construction, Integration, and Compatibility

The Max Brose footwell light module is an OEM construction, prepared for installation in the original mounting points in the BMW E87 LCI body. The housing and connectors are adapted to the factory wiring harness, promoting plug-and-play installation while adhering to proper service procedures.

As a part of the Electronic Control Modules and Controllers group, the controller communicates with other units in the vehicle via the network, performing functions related to switching on, dimming, and potentially fading the lighting in the footwell area. This allows for consistent interior lighting logic, synchronized with door opening, central locking, or ignition status.

Benefits of Using an Original Used Module

Using an original, used BMW footwell light controller allows for the preservation of factory electrical system operating parameters without the need for universal or adapted solutions. This is particularly important for vehicles equipped with advanced comfort systems, where each additional module must communicate correctly with the rest of the system.

A used OEM part from this group is often chosen as a sensible alternative to new parts, enabling economical repairs while maintaining compatibility with the factory electrical architecture. A correctly selected controller reduces the risk of lighting malfunctions, flickering lights, or excessive quiescent current draw.

Condition, Verification, and Selection by Part Numbers

The module is offered as a used part, meaning it has been removed from a vehicle and previously operated. Before installation, it is recommended to verify compatibility by part number and interchangeable part numbers to ensure full compatibility with the specific BMW E87 LCI equipment version.

If you have doubts about selecting the correct controller for your car, it is advisable to use the OEM part number or reference numbers assigned to this model, and to compare the connector type and mounting arrangement with the currently installed part.

Expanding Knowledge on BMW Electronic Modules

If you want to better understand how the repair and diagnostics of BMW electronic modules work in practice – from the iDrive system to body controllers – it is worth consulting specialized materials. Practical tips for working with used controllers, including FRM modules and engine controllers in popular 3 and 5 Series models, can be found in the article Driving Pleasure for Years – How to Care for iDrive Systems and Electronic Modules in BMW 3 and 5 Series Models.

If you are planning a comprehensive repair or upgrade of the body electronics area in your BMW and need other parts from the same group, such as light controllers, comfort modules, or interior lighting management units, check the available parts in the BMW Electronic Control Modules and Controllers category.