What is a Toyota Harrier XU30 airbag control unit?
The Toyota Harrier XU30 airbag control unit is the central safety unit in the vehicle, precisely activating all occupant restraint systems, such as airbags and seatbelt pretensioners, after an accident. It continuously monitors signals from crash sensors, stores relevant crash data, and ensures the proper functioning of all connected safety components for optimal protection.
This highly sensitive electronic module analyzes acceleration values and other vehicle data.
It is designed for an operating voltage of 12V and has CAN bus connections for communication in the vehicle network.
The robust housing of the control unit is specially designed for use in the interior of the Toyota Harrier XU30 (model years 2005-2013) and protects against vibrations and dust.
Why is the Toyota Harrier XU30 airbag control unit defective?
The Toyota Harrier XU30 airbag control unit often fails because it stores crash data after an impact, causing the system to deactivate. Internal errors such as memory overflows, software problems, or power supply disruptions can also lead to failure, necessitating a Toyota Harrier XU30 airbag control unit repair.
A common reason for a defect is the storage of accident codes after a triggering, which cannot be easily deleted with standard diagnostic devices.
Errors in the module's internal software or EEPROM memory can also lead to failure.
Communication problems with other control units in the vehicle or an unstable power supply can also make the airbag control unit appear to be defective.
Regular self-test errors of the control unit indicate internal diagnostic problems and make a precise diagnosis in the workshop essential.
Common error codes for Toyota Harrier XU30 airbag control unit repair
Toyota Harrier XU30 airbag control unit repair often deals with specific trouble codes that directly indicate problems with the airbag control unit itself. These DTCs include communication malfunctions, stored crash data, and internal memory or programming errors that require specialized diagnostics and repair.
- B1000 → Control unit communication error → The airbag ECU cannot establish a correct connection to the vehicle network.
- B1100 → Crash data memory / accident codes stored → After an accident, data is stored in the control unit that requires a reset.
- B1120 → Internal memory full (memory overflow) → A memory overflow may cause the airbag system to malfunction.
- B1200 → Programming error or EEPROM error → Problems with the internal software or memory area of the control unit.
- B1400 → Power supply error or interruption → There is a faulty or interrupted power supply to the airbag control unit.
- B1500 → Airbag control module self-test error → The control module reports internal diagnostic problems during system startup or operation.
These codes refer only to the airbag control unit (SRS ECU) and not to sensors or airbag modules.
After an accident, the error code B1100 is typical and requires special reset services because standard diagnostic devices cannot erase the crash data.
Fixing such errors often requires special equipment or a service provider to restore the full functionality of the Toyota Harrier XU30 airbag control unit repair.
What part numbers are available for the Toyota Harrier XU30 airbag control unit repair?
For Toyota Harrier XU30 airbag control unit repairs, the original Toyota OEM part number 89170-48050 is primarily relevant, as it is considered the only clearly verified and technically assigned part number for this specific airbag control unit. Other numbers listed in the search results do not belong to the airbag control unit.
Part number 89170-48050 is known as the Airbag Module Reset Reference in conjunction with software version 93C56.
This number clearly indicates an original airbag control unit for the Toyota Harrier XU30.
No other exact, original OEM supplier part numbers (such as Bosch, Autoliv) for the Toyota Harrier XU30 airbag control unit could be found.
The number 83800-48213 belongs to the speedometer and is not an airbag control unit, so it should be excluded from the Toyota Harrier XU30 airbag control unit repair.