BMW E90 LCI ECU Footwell Light Module FRM3R Rear Led Basis 9263800

BMW E90 LCI ECU Footwell Light Module FRM3R is a specialized component from the Electronic control modules and controllers category, designed for advanced lighting management in facelifted BMW 3 Series models. This controller operates in the rear section of the vehicle, ensuring precise control of lighting functions and consistent communication with the car's other electronic systems.

Specifications and technical data

• SKU: 9263800
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9263800
• Substitutable numbers: 61359263800, 9263800
• Location on the vehicle: Rear
• Category: ECUs & Computer Modules

Purpose and function of the FRM3R module

BMW E90 LCI ECU Footwell Light Module FRM3R is responsible for the electronic control of exterior lighting and selected comfort functions in the rear zone of the vehicle. As an ECU system component, it works with the car's communication bus, receiving signals from sensors and switches and translating them into proper lighting operation. This ensures that the lighting system works stably and that reactions to driver commands are consistent with BMW's factory logic.

The module's location in the rear of the car facilitates optimal routing of electrical harnesses and reduces interference, which is important for the reliability of the entire lighting system.

Benefits of using an original BMW module

Using a controller from the Electronic control modules and controllers group dedicated to BMW allows you to maintain the factory lighting characteristics without the need for installation modifications. The original hardware architecture and module software are designed for a specific vehicle platform, which translates into:

• proper cooperation with the electrical installation and other controllers,
• maintenance of diagnostic functions and communication with service testers,
• consistent operation of comfort systems linked to lighting.

For the user, this means stable lighting system operation and a reduced risk of errors resulting from incompatible replacements.

Technical characteristics and installation

The module belongs to the family of ECU controllers used in BMW, which ensures integrated cooperation with the vehicle's electronic network. Its location in the rear of the vehicle body facilitates access to the harnesses leading to the rear lamps and other lighting elements. As a result, installation in a specialized service center or a workshop dealing with BMW electronics is an orderly and predictable process.

Before installation, it is recommended to verify compatibility using the OEM part number and interchangeable numbers, and then perform appropriate programming or adaptation procedures, in accordance with service practices for ECU controllers in BMW.

Product condition and service application

The offered controller comes from the secondary market and is intended for service applications in BMW vehicles where the original light module has been damaged. Choosing a used component allows for an economical repair while maintaining the car's original electrical architecture.

The module will work well both for standard replacement of a damaged controller and for more complex work related to restoring full functionality of the lighting system after a collision or installation failure.

Support in selection and additional information

To correctly select a controller for a specific BMW configuration, it is worth using OEM markings and interchangeable numbers, as well as vehicle data (VIN). A detailed discussion of selection principles, hardware and software compatibility issues, and practical aspects of installation can be found in the Global Parts guide: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?.

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