Airbag control unit with part number 89170-0DA30

What does the airbag control unit 89170-0DA30 do?

The airbag control unit 89170-0DA30 is the control centre of the restraint system (SRS) in Toyota. It checks the crash sensors, determines the triggering of airbags and seatbelt pretensioners in an emergency, and monitors the system throughout.

If the unit detects a fault, it reports it via the airbag warning light in the instrument cluster.

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

Why does the control unit 89170-0DA30 fail?

With the control unit 89170-0DA30, the most common cause is a set of crash data stored after an accident, even if no airbag has fired. Aged electronics, cold solder joints, moisture and corrosion at plugs, and voltage spikes are also possible.

A standard diagnostic tool does not change this, because the crash data remains stored in the unit. Airbag24 erases it during the repair.

Several factors can act together: a weak battery or a jump start produces voltage spikes, and moisture attacks plug connections. Aging components and cold solder joints contribute as well.

How can you tell that the 89170-0DA30 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, an error message appears, the diagnostic tool cannot connect to the control unit, and the fault memory cannot be cleared. These signs point to a defect in the 89170-0DA30.

In this state, airbags and seatbelt pretensioners may not trigger in an emergency. The light is therefore a reason for a prompt check.

Which wire or component is affected is shown only by reading out the fault memory.

Which vehicles is the 89170-0DA30 fitted in?

The control unit 89170-0DA30 is fitted in these vehicles: Toyota Yaris XP130 2nd Facelift (2017-2020), XP130 (2010-2014) and XP130 1st Facelift (2014-2017).

In detail, we list these vehicles:

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

Comparing the part number on the label of the removed unit with this page gives certainty that it is the right unit. Whether the control unit is defective or a plug or cable is the cause is shown only by the fault memory. Have it read out beforehand.

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 89170-0DA30 work?

First have the fault memory of the control unit 89170-0DA30 read out and enclose the log, then disconnect the battery and only then remove the unit. Afterwards, create a repair order online and send the well-packed unit in. Processing at Airbag24 usually takes 3–4 working days.

On the test bench, the unit is serviced: Airbag24 replaces defective components, erases the stored crash data and tests the function. Then your 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 89170-0DA30 get to Airbag24?

You send the control unit 89170-0DA30 off as a parcel or have it collected by UPS for an extra charge. Airbag24 returns it to you by UPS after the repair.

Print the repair order, put it in the parcel and pack the control unit shockproof.