Airbag control unit with part number 89170-52N30

What does the airbag control unit 89170-52N30 do?

The airbag control unit 89170-52N30 coordinates the restraint system (SRS) of Toyota. From the signals of the crash sensors it calculates within milliseconds which airbags and seatbelt pretensioners trigger, and it monitors the system without a break.

The monitoring runs without interruption, so faults are noticed early.

A detected fault appears via the airbag warning light. After a crash, the unit stores crash data and locks itself.

Why does the control unit 89170-52N30 fail?

The most common cause is stored crash data after an accident, even without a triggered airbag. Aged components, cold solder joints, moisture and voltage spikes come on top of that.

Further causes at a glance:

• electronic components that age over time
• solder joints that were made cold
• dampness and corrosion at connectors
• voltage spikes, for example from jump-starting

Whether the crash data alone cause the failure or one of the other causes is added is decided only by the inspection.

How can you tell that the 89170-52N30 is defective?

The airbag warning light in the instrument cluster reports the defect as soon as it stays on constantly or intermittently. Fault messages appear at the same time, the diagnostic tool finds no control unit, and the fault memory cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then not trigger.

That the light comes on means the system has detected a fault.

Then have the fault memory read out, so that you know which messages are stored.

Which vehicles is the 89170-52N30 fitted in?

The control unit 89170-52N30 is fitted in these vehicles: Toyota Yaris XP130 2nd Facelift (2017-2020), XP130 (2010-2014) and XP130 1st Facelift (2014-2017). The assignment applies to this part number.

The assigned models can be found here.

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

Before sending, compare the part number on the removed unit with this page. This ensures that it is the right unit. Also have the fault memory read out beforehand, because the result shows whether the control unit is defective or 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 89170-52N30 work?

First have the fault memory read out, enclose the log with the unit, then disconnect the battery and remove the control unit. Online you then create a repair order, and the well-packed unit goes on its way. At Airbag24, inspecting, repairing and testing usually take 3–4 working days.

On the test bench, Airbag24 checks the unit and repairs defective components. Stored crash data are erased, and a functional test follows before the return.

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 89170-52N30 get to Airbag24?

You hand in the unit as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 sends it back to you via UPS.

The printed repair order goes into the parcel. Pack the control unit shock-resistant before you hand it over.