Airbag control unit with part number 89170-02810

What does the airbag control unit 89170-02810 do?

The airbag control unit 89170-02810 is the central control unit of the SRS for Toyota. It checks the crash sensors, determines in an accident which airbags and seatbelt pretensioners are triggered, and monitors the entire circuit continuously. Faults are shown via the airbag warning light.

During operation, the unit checks sensors, cables and actuators. Any deviations found are stored.

After an accident, it creates crash data and locks itself.

Why does the control unit 89170-02810 fail?

Crash data stored after an accident is the most common cause, even when no airbag has deployed. A standard diagnostic tool cannot delete it. Further causes are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

Airbag24 deletes the crash data during the repair. This information is important for deciding on the procedure.

The further causes include:

• aged electronic components
• cold solder joints
• moisture and corrosion at plug connections
• voltage spikes, for example with a weak battery or jump-starting

How can you tell that the 89170-02810 is defective?

The airbag warning light in the instrument cluster lights up constantly or intermittently. A fault message appears in the instrument cluster, the diagnostic tool finds no connection to the control unit, or the fault memory cannot be cleared.

The warning light is intended precisely to make faults visible. An intermittent display is just as much a finding as a permanent one.

With such a finding, airbags and seatbelt pretensioners may not deploy in an emergency.

Which vehicles is the 89170-02810 fitted in?

The 89170-02810 is fitted in these vehicles: Toyota Corolla E140 (2006-2013).

The vehicles for this part number are listed in the following overview.

• Toyota Corolla E140 (2006-2013)

Comparing the part number on the label of the removed unit with this page only confirms that it is the correct unit. Have the fault memory read out beforehand as well. Only this log shows whether the control unit is defective or a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 89170-0F032, 89170-12160.

How does the repair of the 89170-02810 work?

Have the fault memory read out first and enclose the log. Then disconnect the battery and remove the control unit. Create a repair order online and send the unit in, well packed. Airbag24 usually needs 3–4 working days for checking, repairing and testing.

The sequence is fixed for safety reasons.

Airbag24 checks the unit, replaces defective components, deletes crash data and carries out a function test. After that, your own unit is returned to you.

Our repairs come with 2 years' statutory liability for defects. The repaired control unit comes back with all vehicle data and is ready for use as soon as it is refitted — no coding or programming is required.

How does the control unit 89170-02810 get to Airbag24?

You send the unit as a parcel or book a UPS collection for an extra charge. After the repair, it comes back to you by UPS.

The printed repair order goes into the parcel. Pack the unit shock-proof.