What is a Lexus GS GS450h airbag control unit?
The Lexus GS GS450h airbag control unit is the central safety unit that activates all occupant restraint systems in the event of an accident. It precisely monitors impact sensors, stores relevant crash data, and ensures the immediate and correct deployment of all airbag modules and seatbelt pretensioners in the vehicle to provide maximum occupant protection.
This SRS (Supplemental Restraint System) module controls the entire passive safety system of your Lexus GS450h. It is responsible for deploying the dual-stage front, knee, side, and window airbags in the event of a collision. The control unit is typically located on the floor panel below the center console and serves as the interface to all associated sensors and actuators.
Why is the Lexus GS GS450h airbag control unit defective?
A Lexus GS GS450h airbag control unit can fail after an accident because it has "Crash Data Stored" or internal errors, which activates the airbag warning light. Such defects prevent the system from functioning properly because either the memory is full or hardware components within the module itself are damaged. Professional repair is then essential for safety.
After an accident, airbag control units irreversibly store crash data, preventing their further function. Internal hardware errors or EEPROM corruption can also cause failure, necessitating Lexus GS GS450h airbag control unit repair. Such defects are often indicated by a permanently illuminated airbag warning light in the dashboard.
Common error codes for Lexus GS GS450h airbag control unit repair
During Lexus GS GS450h airbag control unit repairs, specific internal error codes often occur that point directly to the control unit. These B-codes in the B1000 to B1300 series indicate communication problems, internal memory errors, or problems with the module's self-diagnosis and are crucial for an accurate diagnosis.
- B1000 → Control unit communication error → System-side data transmission problem.
- B1100 → Airbag control unit internal memory error → Damage to the internal memory in the module.
- B1120 → Internal error in the airbag control unit → Hardware or software malfunction within the ECU.
- B1215 → Error in EEPROM or control unit memory → Corruption or damage of the persistent memory.
- B1235 → Control unit self-diagnosis error → The module cannot check its own function correctly.
- B1285 → Internal control unit error with hardware components → Failure or malfunction of specific hardware elements.
What part numbers are available for the Lexus GS GS450h airbag control unit repair?
For the Lexus GS GS450h airbag control unit repair, there is a single, precisely verified OEM part number: 89170-30F50 from Lexus. This number is crucial because alternative or supplier part numbers for the Lexus GS450h control unit have not been confirmed by official sources, simplifying identification for precise repair or replacement.
The only relevant OEM part number for the Lexus GS450h airbag control module is 89170-30F50 (also known as 8917030F50). This has been confirmed through cross-checking with multiple trusted Lexus sources and is specific to the control module, not sensors. When replacing or repairing a Lexus GS450h airbag control module, VIN programming of the new or repaired module is mandatory to ensure compatibility with the vehicle.