Airbag control unit with part number 89170-0R410

What does the airbag control unit 89170-0R410 do?

The airbag control unit 89170-0R410 is the central control unit of the SRS system for Toyota. It evaluates the crash sensors, decides on the triggering of airbags and seatbelt pretensioners in an accident, and monitors the entire restraint system continuously.

It reports detected faults to the airbag warning light.

After an accident the unit stores crash data and locks itself. The lock ends only with the repair.

Why does the control unit 89170-0R410 fail?

The most common cause is crash data from an accident, even without a triggered airbag. A normal diagnostic tool cannot remove it; during the repair Airbag24 erases it. Also possible are aged electronics, cold solder joints, moisture and corrosion on plug connections, and voltage spikes, for example from a weak battery.

Jump-starting can also cause voltage spikes when the voltage briefly jumps.

Crash data stays in the unit after the accident until the repair removes it.

How can you tell that the 89170-0R410 is defective?

The airbag warning light lights up permanently or intermittently, and a fault message additionally appears in the instrument cluster. The diagnostic tool receives no connection to the control unit, and the fault memory remains.

• Airbag warning light on permanently or intermittently
• Fault message in the instrument cluster
• Diagnostic tool cannot reach the control unit
• Fault memory cannot be cleared

With these signs, airbags and seatbelt pretensioners may not trigger in an emergency. Take the warning seriously.

Which vehicles is the 89170-0R410 fitted in?

The 89170-0R410 is fitted in these vehicles: Toyota RAV4 XA50 (from 2018). The decisive factor is the assignment to the part number.

The vehicles are listed below:

• Toyota RAV4 XA50 (from 2018)

Compare the part number on the label of the removed unit with this page; this shows that it is the right unit. Have the fault memory read out beforehand, because only that 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 150800-4431, 152100-0262, 152100-4560, 89170-42400, 89170-42870, 89170-42A60.

How does the repair of the 89170-0R410 work?

First have the fault memory read out and enclose the log; then disconnect the battery and only then remove the control unit. Create a repair order online and send in the well-packed unit. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 checks the unit on the test bench, replaces defective components, erases stored crash data and carries out a function test. The unit then goes back 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 89170-0R410 get to Airbag24?

You either send the unit in as a parcel or book a UPS collection for an extra charge. After the repair Airbag24 sends the unit back by UPS.

The printed repair order goes into the parcel, and you pack the unit shock-proof.