BMW E81 Footwell Light Control Unit Module Controller AHL FRM3R PL2 9175649

BMW E81 Footwell Light Control Unit Module Controller AHL FRM3R PL2 9175649 is a specialized, used module from the Electronic Control Units and Controllers group, designed for managing footwell lighting and related functions in BMW vehicles. This is a factory OEM solution that allows for the restoration of correct electrical system operation in a manner consistent with the original installation architecture.

Specifications and technical data

• SKU: 9240526
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9240526
• Substitutable numbers: 9240526
• Category: ECUs & Computer Modules

Module Purpose and Function

The presented FRM3R AHL controller is responsible for controlling the lighting in the footwell area and for interacting with other comfort and safety systems in BMW compact series vehicles. The module integrates signals from the vehicle's body electrical system, ensuring proper control of interior lights and handling associated functions according to the manufacturer's logic.

By using an original module, compatibility with factory wiring, equipment configuration, and service diagnostics is maintained, which facilitates subsequent programming and adaptation in the vehicle.

Construction and Integration with BMW Installation

The module belongs to the Electronic Control Units and Controllers group, meaning it is designed to operate within the BMW vehicle's controller network, utilizing the communication buses employed by the manufacturer. The housing is intended for installation in the interior area, near the footwell, with access to the factory wiring harness connectors.

The OEM solution ensures:

• consistency with the vehicle's original electrical diagram,
• proper cooperation with other body controllers,
• diagnosability using standard BMW service tools.

Service Application and Benefits of Installation

The use of this module is particularly beneficial for repairs following installation damage, water ingress, short circuits, or interior lighting malfunctions. Replacement with a functional OEM part allows for:

• restoring stable operation of footwell lighting and associated functions,
• maintaining original operating parameters of comfort systems,
• avoiding problems with incompatible aftermarket replacements.

A used controller of this type is an economical solution that is also technically matched to BMW's electrical architecture, which is important for the long-term operation of the vehicle.

Condition, Verification, and Preparation for Installation

The module is offered as a used OEM BMW part, meaning it comes from a dismantled vehicle and has been verified for its suitability for further use. Before installation in a specific vehicle, it is recommended to perform a standard diagnostic procedure and, if necessary, programming or coding according to the car's equipment.

Due to the nature of the FRM3R AHL controller, installation should be carried out by someone experienced in working with BMW electrical systems, observing safety procedures when disconnecting and reconnecting vehicle power.

Technical Support and Additional Information

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

To better plan the repair of electronic systems in your car, including FRM modules and controllers related to the multimedia system, it is worth reading the practical tips contained in the article: Years of Driving Pleasure – How to Care for iDrive Systems and Electronic Modules in BMW 3 and 5 Series Models Using Dismantled Parts?