Airbag control unit with part number 89170-0D580

What does the airbag control unit 89170-0D580 do?

The airbag control unit 89170-0D580 is the central control unit of the restraint system (SRS) for Toyota. It evaluates the signals from the crash sensors and, in the event of an accident, decides within milliseconds which airbags and seatbelt pretensioners are triggered. Faults in the system are indicated via the airbag warning light.

While driving, the control unit monitors the entire restraint system continuously. This includes the sensors, the firing units and the wiring between them.

If an accident occurs, the unit stores crash data and locks itself. This storage is part of how the system works.

Why does the control unit 89170-0D580 fail?

The most common cause for the 89170-0D580 is crash data stored after an accident, even if no airbag has deployed; a normal diagnostic tool cannot erase it. Other possible causes include aged electronic components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes.

Crash data is the most obvious suspicion if the unit becomes conspicuous after an accident. However, it is not the only possible explanation.

The other causes relate to ageing and environmental influences. Electronic components change over time, and connections are sensitive to moisture and corrosion.

A jump start can also cause voltage spikes, regardless of any accident.

How can you tell that the 89170-0D580 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently if the 89170-0D580 is defective. It is accompanied by a fault message in the instrument cluster, a lost connection to the diagnostic tool and a fault memory that cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then fail to deploy.

The warning light is a signal from the control unit itself, not a guess from outside.

Which vehicles is the 89170-0D580 fitted in?

The assignment on this page is based on our data for Toyota. The control unit 89170-0D580 is fitted in these vehicles: Toyota Yaris XP130 2nd Facelift (2017-2020), XP130 (2010-2014) and XP130 1st Facelift (2014-2017).

The vehicles are listed below.

• Toyota Yaris XP130 2nd Facelift (2017-2020)
• Toyota Yaris XP130 (2010-2014)
• Toyota Yaris XP130 1st Facelift (2014-2017)

Compare the part number on the label of the removed unit with this page, as this is the only way to make sure it is the right unit. Have the fault memory read out beforehand, because only the result shows whether the control unit is defective or whether a connector or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 2310009950, 89170-0D300, 89170-0D320, 89170-0D590, 89170-0D600, 89170-0D620.

How does the repair of the 89170-0D580 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 checks it, replaces defective components, erases stored crash data, carries out a function test and returns your own unit.

The order of the steps is for safety, which is why the control unit is only removed after the battery has been disconnected.

Processing at Airbag24 usually takes 3–4 working days.

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 89170-0D580 get to Airbag24?

You send the control unit 89170-0D580 as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 returns it by UPS.

Put the printed repair order into the parcel and pack the unit shock-proof before handing it over.