What is a Lexus NX NX350 airbag control unit?
The Lexus NX NX350 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. This module is critical to safety in the Lexus NX350, especially in the 2022 model year.
It acts as the "brain" of the Supplemental Restraint System (SRS) and coordinates the deployment of airbags and seat belt pretensioners.
When a malfunction occurs, the SRS warning light on the dashboard usually illuminates, requiring immediate diagnosis.
Why is the Lexus NX NX350 airbag control unit defective?
A Lexus NX NX350 airbag control module can fail because it stores crash data after an accident, requiring a reset, or it can be damaged by electrical surges and internal hardware errors. Aging and vibration can also cause the module to fail, necessitating repair or replacement.
After an accident, the control unit stores a "crash hard code" that blocks further function, even if the module itself is undamaged.
Sometimes internal components can also fail due to wear and tear or manufacturing defects, requiring precise diagnosis and subsequent repair or replacement of the airbag control unit.
Common error codes for Lexus NX NX350 airbag control unit repair
For Lexus NX NX350 airbag control unit repair, specific error codes are crucial. These directly indicate problems with the airbag module, not with sensors or seatbelt pretensioners. These OBD-II B codes signal malfunctions of the control unit itself or a registered crash condition.
- B107E → Airbag module-related → Internal error in the airbag ECU
- B1015 → Faulty airbag control unit → Malfunction of the airbag ECU
- B1139 → Error in the SRS module → Problem within the Supplemental Restraint System
- B1193 → Airbag module-related → Specific error in the airbag ECU
- B1206 → Airbag RCM (Restraint Control Module) Error → Airbag control module malfunction
- B1342 → SRS (Supplemental Restraint System) Error → General SRS System Malfunction
- B1620 → SRS Error → SRS system malfunction again
- B1649 → Crash Detected (related to control unit) → Control unit has registered an accident event
- B1650 → Crash Detected (related to control unit) → Control unit has registered another accident event
- DF194 → After Accident - After accident code (control unit) → Post-accident status of the control unit
What part numbers are available for the Lexus NX NX350 airbag control unit repair?
The correct OEM part numbers are essential for Lexus NX NX350 airbag control unit repair, as they ensure compatibility with the 2022 model year. Only specific Lexus original part numbers for this airbag control unit are considered verified and recommended.
The following 100% verified OEM part numbers are confirmed for the airbag control unit of the Lexus NX350 (model year 2022):
- 89170-F6010 → Lexus Genuine → Primary part number for the airbag control unit
- 8917078090 → Lexus Original → Alternative part number with the same function and compatibility
No other alternative or supplier part numbers could be found for this specific airbag control unit, which underlines the importance of OEM numbers.
Comparing the original part number with these lists is essential before any repair or replacement to ensure the correct function of the airbag system.
Function and meaning of the airbag control unit in the Lexus NX NX350
The airbag control unit in the Lexus NX NX350 is the central element of the passive safety system, continuously monitoring the vehicle's sensors and precisely activating the airbags and seatbelt pretensioners in the event of a collision. It ensures occupant protection through lightning-fast reactions and diagnostics of the entire SRS system.
This module processes real-time data from various impact sensors to determine the severity and type of an accident.
Proper operation is essential to ensure the safety of vehicle occupants and to turn off the SRS warning light.
Professional support for Lexus NX NX350 airbag control unit repair
For Lexus NX NX350 airbag control unit repairs, it's recommended to use specialized services, as they have the necessary expertise for diagnosis, troubleshooting, and crash data resets. A professional service can save costs and ensure the full functionality of the safety system.
After an accident, a complete replacement of the control unit is often not enough to make it functional again, but rather a reset.
Specialists can also interpret complex error codes and determine the exact cause of a defect to provide a permanent solution for your airbag control unit.