What is a Lexus LFA airbag control unit?
The Lexus LFA airbag control unit is the central safety unit that activates all occupant restraint systems in the event of an accident. It monitors sensors, stores crash data, and ensures the proper functioning of all airbag modules in the vehicle, which is essential for passive safety.
This module is a highly specialized electronic component developed exclusively for the Lexus LFA sports car from 2010 to 2012.
It acts as the brain of the Safety Restraint System (SRS) by evaluating data from acceleration and collision sensors.
Why is the Lexus LFA airbag control unit defective?
A Lexus LFA airbag control unit often becomes defective or inoperable after an accident because it irreversibly stores crash data, requiring reprogramming or a reset to restore functionality. Electrical surges, water ingress, or internal component failures can also cause failure.
After a collision, the control unit stores special crash information that makes it unsuitable for reuse in its original state.
In such cases, a professional **Lexus LFA airbag control unit repair** using a data reset or replacing the module is essential to reactivate the safety systems.
Other causes can be corrosion due to moisture, short circuits in the electrical system or age-related wear of the internal components, which lead to failure.
Common error codes for Lexus LFA airbag control unit repair
The most common error codes encountered during a Lexus LFA airbag control unit repair directly indicate problems with the control unit's communication or internal defects. Accurate diagnosis of these codes is crucial for correctly repairing or replacing the module and restoring full functionality to the airbag system.
- B1000 → Control unit communication error → Cause: The airbag control unit cannot communicate with other systems, often due to an internal defect or an interrupted power supply.
- B0091 → Control Unit (Airbag Control Module) Error → Cause: An internal error in the airbag control unit itself that impairs or blocks proper function.
These specific error codes indicate a direct malfunction of the airbag control unit and require detailed analysis in the workshop.
For a reliable diagnosis and successful **Lexus LFA airbag control unit repair**, the use of a professional diagnostic scanner is essential.
What part numbers are available for Lexus LFA airbag control unit repair?
Only one 100% verified OEM part number is known for the Lexus LFA airbag control unit repair: 89170-53020 from Lexus. There are no confirmed alternative OEM or supplier part numbers for this exclusive vehicle model, making the parts search unambiguous.
Part number 89170-53020 is an original equipment manufacturer (OEM) part number and is listed directly in the official Lexus parts catalog as the Air Bag Control Module for the Lexus LFA.
Extensive research in various catalogs could not confirm any other compatible or alternative OEM numbers from suppliers such as Bosch or Continental for the Lexus LFA.
Using this specific part number ensures that you receive the correct module for your vehicle and that the safety systems will function properly after the **Lexus LFA airbag control unit repair**.