Airbag control unit with part number 89170-0D480

What does the airbag control unit 89170-0D480 do?

As the central control unit of the restraint system (SRS) of Toyota, the airbag control unit 89170-0D480 works. From the signals of the crash sensors it determines within milliseconds which airbags and seatbelt pretensioners fire in an impact.

During operation it monitors the system continuously. Faults appear via the airbag warning light.

After an accident it stores crash data and locks itself.

Why does the control unit 89170-0D480 fail?

The most common cause is crash data stored after an accident, even without a deployed airbag, which cannot be cleared with a usual diagnostic tool. Other causes are:

• ageing electronic components
• cold solder joints
• moisture and corrosion at plug connections
• voltage spikes from a weak battery or a jump start

In individual cases several of these factors may apply together. Only reading out the fault memory can clarify this.

How can you tell that the 89170-0D480 is defective?

The display in the instrument cluster lights up permanently or intermittently, an error message appears, the diagnostic tool finds no connection to the control unit, or the fault memory cannot be cleared. If any of these applies, airbags and seatbelt pretensioners may fail to deploy in an emergency.

The warning light is the first thing to catch your attention. It should prompt a check, because it indicates the state of the restraint system.

Which vehicles is the 89170-0D480 fitted in?

The control unit 89170-0D480 is fitted in these vehicles: Toyota Yaris XP90 (2005-2009) and XP90 Facelift (2009-2011).

The following vehicles are known for this part number:

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

Comparing the part number on the label of the removed unit with this page only tells you whether it is the right unit. Whether the control unit itself is defective, or whether a plug or cable is the cause, is shown only by the fault memory read out beforehand.

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 89170-0D480 work?

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

At Airbag24 the unit is checked on the test bench, defective components are replaced, and the crash data is deleted. A function test follows. Testing, repair and the function test together usually take 3–4 working days there.

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 89170-0D480 get to Airbag24?

The unit reaches Airbag24 as a parcel, or UPS collects it for an extra charge. After the repair it returns to you by UPS.

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