What is a Toyota Yaris GR airbag control unit?
The Toyota Yaris GR airbag control unit is your vehicle's central safety unit, responsible for activating all occupant restraint systems in the event of an accident. It continuously monitors sensors, stores important crash data, and ensures the proper functioning of all airbag modules and seatbelt pretensioners in the vehicle.
This electronic module processes signals from acceleration sensors and crash sensors throughout the vehicle. Communication with the airbags and sensors takes place via specific, often yellow, connectors with gold-plated pins.
If a defect occurs, the error log cannot be erased, which keeps the airbag warning light permanently active. A professional Toyota Yaris GR airbag control unit repair is essential to restore safety.
Why is the Toyota Yaris GR airbag control unit defective?
A Toyota Yaris GR airbag control unit is often defective because irreversible crash data was stored after an accident, preventing reinitialization. Internal electronic errors, memory deficiencies, or communication failures can also be the cause, causing the airbag warning light to illuminate continuously or the system to fail completely.
If crash data is stored in the control unit, the system will signal a permanent fault, even if no physical damage is present. This data cannot be erased using standard diagnostic tools, requiring a specialized Toyota Yaris GR airbag control unit repair.
Other reasons for failure include internal hardware or software errors in the control unit itself that impair proper function. Such internal defects require professional diagnosis and often specialized repair of the module to restore full operational readiness.
Common error codes for Toyota Yaris GR airbag control unit repair
Specific error codes directly indicate problems with the Toyota Yaris GR airbag control unit and require a dedicated Toyota Yaris GR airbag control unit repair. These codes often signal crash data, internal defects, or communication problems that cannot be easily reset.
- B1100 → Crash data stored in the airbag control unit → Cause: Accident or shock that leaves permanent error data in the module.
- B0118 → Internal error in the airbag control unit → Cause: Hardware or software defect within the ECU.
- B1000 → Control unit communication error → Cause: Problem in data transmission between ECU and other systems.
- B1246 → Internal memory error control unit → Cause: Damage or corruption of the internal memory in the module.
- B1205 → Error in the EEPROM of the airbag control unit → Cause: Defect in the non-volatile memory of the control unit, often due to overvoltage or aging.
- B1310 → Control unit detection/diagnosis error → Cause: The diagnostic system cannot correctly identify or address the control unit.
- B1245 → Software or firmware error in the control unit → Cause: Corrupt or incompatible software version on the airbag ECU.
These error codes require specialized diagnostics and cannot be resolved with a standard OBD-II scanner. A professional Toyota Yaris GR airbag control unit repair is necessary to restore the safety electronics to full functionality.
What part numbers are available for the Toyota Yaris GR airbag control unit repair?
For the correct Toyota Yaris GR airbag control unit repair or replacement, specific OEM part numbers are crucial to ensure full compatibility and safety. These verified original parts fit the Toyota Yaris GR precisely and are approved by trusted sources, minimizing errors and future failures.
The following part numbers are verified as original and OEM compatible airbag control units for the Toyota Yaris GR:
- 89170-0D020 (Original Toyota)
- 89170-0D300 (Original Toyota)
- 89170-0D440 (Toyota/TRW original)
- 89170-0D730 (Original Toyota)
All numbers listed begin with "89170-," which allows for a clear assignment to airbag control units in Toyota Yaris models. These numbers guarantee full compatibility with your vehicle, especially in the context of a Toyota Yaris GR airbag control unit repair.
These are only control units; sensors or other modules are not listed here. Compatibility has been thoroughly tested using multiple independent sources to provide you with maximum security.