Airbag control unit with part number 898310D090

What is the function of the airbag control unit 898310D090?

The airbag control unit 898310D090 is the central control module for the occupant protection system in the Toyota Yaris of the XP90 series. It processes data from acceleration and crash sensors in real time and determines whether and which airbags or seatbelt pretensioners need to be deployed during a collision, ensuring optimal protection for occupants.

As the brain of the passive safety system, this OEM control unit from Toyota is responsible for monitoring signals from all connected sensors in the vehicle. In the event of a collision, it analyzes incoming data and activates the necessary restraint systems within milliseconds.

In addition, the control unit continuously performs self-diagnosis of the entire airbag system. If it detects a fault in any component—whether a sensor, an airbag, or the control unit itself—the airbag warning light on the instrument panel illuminates to alert the driver.

Why does the control unit 898310D090 fail?

The most common cause of failure for the control unit 898310D090 is crash data stored internally after an accident, which prevents further functionality. Other typical defects include electronic component failures leading to internal malfunctions or communication issues, as well as damage caused by short circuits or overvoltage in the vehicle’s electrical system.

After a crash in which the airbags have deployed, the unit stores so‑called crash data. This is a safety feature designed to prevent reuse without professional diagnostics. Such data often cannot be erased using standard workshop diagnostic tools, effectively locking the control unit.

Internal hardware defects on the circuit board are another frequent source of failure. These may affect individual components such as processors, memory chips, or capacitors. Such faults often trigger error codes like B1100 or an internal error (error code 31), necessitating repair at the component level.

External factors, such as overvoltage from a jump-start or short circuits in the vehicle’s electrical system, can also damage sensitive electronic components inside the control unit, resulting in total failure.

How do you recognize a defect in the 898310D090?

A defect in the control unit 898310D090 primarily manifests as a permanently illuminated or intermittently flashing airbag warning light on the instrument panel. Additional signs include loss of communication with the diagnostic tool via the OBD interface or the reading of specific error codes such as B0108, B0113, or B1100.

The most obvious symptom is the active airbag warning light, indicating a fault in the restraint system that fails to extinguish after the vehicle is started. This is a safety‑critical issue requiring immediate inspection.

Another clear indication is when the workshop’s diagnostic tool cannot establish a connection with the airbag control unit. The unit does not respond to queries, suggesting a severe internal malfunction.

If error codes such as B0108, B0113, B1100, or the general internal error code 31 are logged in the fault memory, this strongly points to a malfunction of the control unit itself rather than a problem with external sensors.

In which vehicles is the control unit 898310D090 installed?

The part number 898310D090 is an original Toyota airbag control unit. At Airbag24, this control unit is specifically repaired for models of the Toyota Yaris XP90 series produced between 2005 and 2011, including both the original generation and the facelifted version of this series.

At Airbag24, we repair the part number 898310D090 for the following Toyota models:

Toyota Yaris (XP90 generation, model years 2005–2009)

Toyota Yaris (XP90 facelift generation, model years 2009–2011)

How is the control unit 898310D090 professionally repaired?

At Airbag24, the repair of the control unit 898310D090 follows a certified process. Following precise electronic analysis, defective components on the circuit board are replaced, and stored crash data is erased. The unit is then restored to its factory condition and undergoes a comprehensive final inspection, backed by a 12-month warranty.

Upon receipt at Airbag24, the control unit undergoes a thorough initial examination. Using specialized diagnostic equipment, the exact source of the fault on the circuit board is identified to enable targeted and efficient repairs.

The experienced technicians perform repairs at the component level, meaning only the faulty parts are replaced. Simultaneously, stored crash data is completely and securely removed, ensuring the control unit is fully operational once again.

Finally, each repaired control unit undergoes a functional test on a test bench that simulates real‑world vehicle conditions, ensuring flawless operation. All repairs at Airbag24 come with a 12‑month warranty.

What shipping options does Airbag24 offer?

For repairing your control unit, Airbag24 provides flexible and secure shipping options. You can either return the removed unit to us free of charge or arrange a convenient UPS pickup. For the return shipment, you have access to free standard UPS shipping as well as faster express options, including cash on delivery.

For the outbound shipment, you can pack the securely packaged control unit yourself and send it to us, or bring it in person. Alternatively, you can request an online UPS pickup from your preferred location.

Once the repair is complete, several return‑shipping options are available. Standard UPS shipping is free of charge. If you prefer faster delivery, you can choose UPS Express shipping; both options are also available with cash on delivery. Of course, you can also pick up your repaired control unit in person at our facility.