Airbag control unit with part number 89170-0D180

What does the airbag control unit 89170-0D180 do?

The airbag control unit 89170-0D180 is the central control unit of the restraint system (SRS) for Toyota. It evaluates the crash sensors and decides in an accident, within milliseconds, which airbags and seatbelt pretensioners are triggered.

The unit monitors the system continuously during operation. It shows faults via the airbag warning light in the instrument cluster.

After an accident, it stores crash data and locks itself. Only the repair lifts the lock.

Why does the control unit 89170-0D180 fail?

Crash data stored after an accident is the most common cause, even if no airbag has deployed. Other causes are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example from a weak battery.

A normal diagnostic tool cannot erase this crash data. Airbag24 removes it as part of the repair.

The remaining causes lie in the electronics and their connections. Components age, solder joints can go cold, and moisture and corrosion attack the plugs.

How can you tell that the 89170-0D180 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently when the 89170-0D180 is defective. An error message in the instrument cluster, a diagnostic tool without a connection to the control unit and a fault memory that cannot be cleared are also signs.

In a real emergency, airbags and seatbelt pretensioners may fail to deploy. The warning light shows the defect and should be taken seriously.

The diagnostic tool reads out the stored faults and shows which messages are present.

Which vehicles is the 89170-0D180 fitted in?

The 89170-0D180 is fitted in these vehicles: Toyota Yaris XP90 (2005-2009) and XP90 Facelift (2009-2011).

The following vehicles are recorded in our assignment for this part number:

• Toyota Yaris XP90 (2005-2009)
• Toyota Yaris XP90 Facelift (2009-2011)

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

For the same vehicles, we also repair control units with the part numbers 212986-105, 212986-110, 220749-101, 89170-0D170, 89170-0D230, 89170-0D440.

How does the repair of the 89170-0D180 work?

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

Airbag24 checks the unit on the test bench, replaces defective components, deletes stored crash data and carries out a function test.

Afterwards, your own unit 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 89170-0D180 get to Airbag24?

You send the control unit 89170-0D180 as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 sends it back to you by UPS.

Place the printed repair order in the parcel and pack the unit shock-proof.