BMW 3 Series E91 Xenon Footwell Light Module Control Unit ECU PL2 FRMFA 6987999

BMW E91 Light Control Module 6987999 is an original part from the Electronic Control Modules and Controllers group, designed for precise lighting management in BMW vehicles. A used control module allows for an economical yet professional repair of the lighting system, maintaining factory operating logic and compatibility with the vehicle's wiring.

Specifications and technical data

• SKU: 6987999
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6987999
• Substitutable numbers: 6987999, 61356987999
• Category: ECUs & Computer Modules

Purpose and Function of the BMW Light Control Module

The presented module belongs to the Electronic Control Modules and Controllers group, responsible for advanced management of electrical circuits in the vehicle. For a light control module, correct control of the following is crucial:

• vehicle's exterior lighting (low beam, high beam, parking lights, turn signals – according to the car's configuration),
• communication with the electrical system and other body modules,
• lighting fault indication on the instrument cluster.

By using an original module, consistency with the factory BMW electrical architecture is maintained, which reduces the risk of communication errors and diagnostic problems.

Benefits of Using an Original BMW Module

Choosing a light control module from a dismantled BMW vehicle allows for a reasonable repair cost while maintaining manufacturer-specified parameters. An original module:

• is designed specifically for the electrical system of BMW 3 Series,
• works with factory wiring harnesses, switches, and other control modules,
• facilitates diagnostic work using dedicated BMW service tools.

For workshops and private users, this means stable lighting system operation and faster configuration and coding compared to non-original aftermarket replacements.

Selection, Installation, and Technical Aspects

Before installing the light control module in a BMW E91, it is recommended to verify compatibility with your vehicle's equipment version and consult with an automotive electrician or a BMW specialist service. The module, as an electronic component, requires:

• correct connection to the vehicle's wiring according to the electrical diagram,
• adherence to safety procedures when working with low-voltage systems,
• potential coding or adaptation to the specific car instance.

A used control module can be a particularly beneficial solution for repairs after flooding, short circuits in the wiring, or mechanical damage to the previous module, allowing for the restoration of full lighting functionality without the need to invest in a new part.

Integration with BMW Electronic Systems

As a part of the Electronic Control Modules and Controllers group, the light control module collaborates with other body modules and comfort systems. A correctly selected and configured module:

• ensures consistent operation of lighting functions with the onboard computer settings,
• enables correct error reporting in the diagnostic system,
• reduces the risk of incorrect light operation after modifications or wiring repairs.

More practical tips on working with BMW electronics, including body modules, can be found in the article: Years of Driving Pleasure – How to Care for iDrive Systems and Electronic Modules in BMW 3 and 5 Series Models.

Expanding Repairs within BMW Electronics

If you are planning a comprehensive repair or upgrade of the electronic zone in your BMW and need other parts from the same group, such as comfort modules, body control modules, or other electrical system management units, check the available parts in the BMW Electronic Control Modules and Controllers category.