What is a Subaru BRZ STI Sport Airbag Control Unit?
The Subaru BRZ STI Sport Airbag Control Unit is the central safety unit that precisely activates all occupant restraint systems, such as airbags and seatbelt pretensioners, in the event of an accident. It continuously monitors all relevant sensors in the vehicle, stores important crash data, and ensures the proper functioning of the entire restraint system for optimal protection.
This critical module continuously evaluates sensor data to determine the optimal timing and intensity for airbag deployment.
It acts as the brain of the passive safety system and ensures occupant protection during a collision.
Why is the Subaru BRZ STI Sport airbag control unit defective?
The Subaru BRZ STI Sport airbag control unit may be **defective** because it stores crash data after an accident that prevents it from functioning again, or because internal components have been damaged by aging, overvoltage, or moisture, leading to malfunctions or complete failure and requiring **repair**.
Common causes are internal memory errors that put the module into an error state.
Communication problems with other vehicle systems or electrical circuit faults can also cause a **failure**, which is often indicated by an illuminated airbag warning light and requires immediate **diagnosis**.
Common error codes for Subaru BRZ STI Sport airbag control unit repair
When **repairing** a Subaru BRZ STI Sport airbag control module, specific error codes will occur that indicate internal defects, communication problems, or memory errors of the module and allow for precise **diagnosis** to locate and correct the exact **fault**.
- B1000 → Control unit communication error → Cause: The airbag control unit cannot communicate with other systems or diagnostic tools.
- B1022 → Airbag control unit internal error → Cause: There is a serious internal defect or malfunction in the module itself.
- B1100 → Airbag control unit memory error → Cause: Problems have occurred with the internal data memory of the airbag control unit.
- B1210 → CAN bus communication error → Cause: Malfunctions in the data connection between the airbag control unit and the vehicle CAN bus.
- B1425 → Airbag ECU internal memory error → Cause: A specific type of internal memory problem that affects functionality.
- B1610 → Airbag control module circuit fault → Cause: An electrical short or open circuit within the airbag control module, often an indication of a hardware **fault**.
What part numbers are available for the Subaru BRZ STI Sport airbag control unit repair?
For the **repair** or replacement of a Subaru BRZ STI Sport airbag control unit, specific original OEM part numbers are relevant to ensure compatibility with your vehicle model. Using the correct number is crucial to correcting the **failure** and restoring full safety.
The following OEM part numbers are verified for the Subaru BRZ STI Sport Airbag Control Unit:
- 98221CC001 (Subaru, original OEM)
- 98221CC120 (Subaru, original OEM)
- 98221CA090 (Subaru, original OEM)
- 98221CA210 (Subaru, original OEM)
These numbers guarantee compatibility with the Subaru BRZ, including the STI Sport variant, for reliable **repair** or replacement in the **workshop**.