Airbag control unit with part number 89170-0F022

What does the airbag control unit 89170-0F022 do?

The airbag control unit 89170-0F022 is the central control unit of the restraint system (SRS) in Toyota vehicles. It reads the crash sensors, selects the appropriate airbags and seatbelt pretensioners in an accident within milliseconds, and monitors the system continuously.

If the unit detects a fault, it shows this via the airbag warning light in the instrument cluster. The fault is stored in the fault memory so that it can be read out later.

After an accident, the control unit stores crash data and locks itself. The lock is lifted only by a repair.

Why does the control unit 89170-0F022 fail?

The most common cause is crash data stored after an accident, even if no airbag was triggered. This data cannot be erased with a normal diagnostic tool. Other causes include aged electronic components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes.

Aged components lose performance over time, and cold solder joints make contact only intermittently. Moisture and corrosion attack the plug connections and disrupt signal transmission.

Voltage spikes, for example from a weak battery or jump-starting, put strain on the electronics. Airbag24 removes the crash data during the repair; the inspection shows which cause applies.

How can you tell that the 89170-0F022 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, a fault message appears in the instrument cluster, the diagnostic tool cannot connect to the control unit, and the fault memory cannot be cleared.

In the event of such a defect, airbags and seatbelt pretensioners may not be able to trigger in an emergency. This applies even if the vehicle seems inconspicuous in everyday use.

Please have the warning checked promptly.

Which vehicles is the 89170-0F022 fitted in?

The airbag control unit 89170-0F022 is fitted in these vehicles: Toyota Verso AR10 (2004-2007) and AR10 Facelift (2007-2009).

The following list shows the models assigned to this page.

• Toyota Verso AR10 (2004-2007)
• Toyota Verso AR10 Facelift (2007-2009)

Compare the part number on the label of the removed unit with this page. This only shows whether it is the correct unit. Have the fault memory read out beforehand, because only this log shows whether the control unit is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 89170-0F050, 89170-0F070, 89170-0F080.

How does the repair of the 89170-0F022 work?

First have the fault memory read out and attach the log. Then disconnect the battery and only then remove the control unit. Next, create a repair order online and send in the well-packed unit.

Airbag24 examines the unit on the test bench, replaces defective components, erases stored crash data and carries out a function test. Processing at Airbag24 usually takes 3–4 working days. After that, your own unit is sent back.

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 89170-0F022 get to Airbag24?

You send the unit as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 sends it back to you by UPS.

Put the printed repair order into the parcel and pack the unit shock-proof.