What is a Toyota Avensis T220 airbag control unit?
The Toyota Avensis T220 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 electronic module is crucial for your safety and coordinates the deployment of airbags and seatbelt pretensioners. It is an integral part of the passive safety system of your Toyota Avensis T220.
Why is the Toyota Avensis T220 airbag control unit defective?
The Toyota Avensis T220 airbag control unit often fails because it is sensitive to moisture, overvoltage, or aging. An accident can also cause it to lock up due to stored crash data, necessitating repair.
Internal components can wear out over years of use or exposure to temperature changes, leading to sporadic malfunctions. This often manifests itself in the activation of the airbag warning light in the instrument cluster.
After a crash, the control unit stores indelible data that prevents further use without a professional reset. A specialized Toyota Avensis T220 airbag control unit repair is essential in such cases.
A failure of communication via the CAN bus or problems with the power supply can also paralyze the device. Such malfunctions require precise diagnosis in the workshop.
Common error codes for Toyota Avensis T220 airbag control unit repair
During the Toyota Avensis T220 airbag control unit repair, the primary diagnostic error code is B1100, which signals an internal communication error in the airbag ECU. This indicates a direct malfunction in the control unit itself.
- B1100 → Malfunction or communication error of the airbag control unit → Internal failure of the airbag ECU or defect in the control unit.
Other common error codes usually concern sensors or belt tensioners, but B1100 is specific to problems with the control unit of the Toyota Avensis T220. A targeted diagnosis is crucial here.
What part numbers are available for the Toyota Avensis T220 airbag control unit repair?
For Toyota Avensis T220 airbag control unit repairs, specific Toyota OEM part numbers are relevant to ensure compatibility with your vehicle model. These numbers confirm the module's suitability for model years 1997 to 2003.
The verified original part numbers for the Toyota Avensis T220 airbag control unit are:
- 8917005080 (Toyota Original OEM)
- 8917005090 (Toyota Original OEM)
- 8917005030 (Toyota Original OEM)
These numbers are unique to the airbag control unit and have been verified multiple times via independent platforms. These numbers should always be checked during replacement or repair to avoid making an incorrect purchase.