Airbag control unit with part number 89170-52G80

What does the airbag control unit 89170-52G80 do?

The airbag control unit 89170-52G80 acts as the central unit controlling the restraint system (SRS) of Toyota. It checks the signals from the crash sensors, decides within milliseconds in the event of an accident which airbags and seatbelt pretensioners to trigger, and monitors the system continuously. Faults are shown by the airbag warning light.

After an accident, the control unit stores crash data and locks itself.

All deployments run through this unit. A fault in it therefore affects the entire restraint system.

Why does the control unit 89170-52G80 fail?

The most common cause of a 89170-52G80 failure is crash data stored after an accident, even if no airbag has deployed. Other causes can include ageing, cold solder joints and moisture at plug connections.

A normal diagnostic tool cannot erase crash data. Airbag24 erases it during the repair.

Further possible causes in detail:

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

How can you tell that the 89170-52G80 is defective?

A defect in the 89170-52G80 shows first as the airbag warning light in the instrument cluster, which lights up permanently or intermittently. Error messages and connection problems with the diagnostic tool also point to it.

The signs in detail:

• airbag warning light in the instrument cluster on, permanently or intermittently
• error message in the instrument cluster
• diagnostic tool gets no connection to the control unit
• fault memory cannot be cleared

While a defect exists, airbags and seatbelt pretensioners may not deploy in an emergency. Please have the finding checked promptly.

Which vehicles is the 89170-52G80 fitted in?

The control unit 89170-52G80 is fitted in these vehicles: Toyota Yaris XP130 2nd Facelift (2017-2020), XP130 (2010-2014) and XP130 1st Facelift (2014-2017).

For this part number we list the vehicles in the list below:

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

Comparing the label number with this page only ensures that it is the right unit; it achieves nothing more. Have the fault memory read out beforehand. Only this result 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 2310009950, 89170-0D300, 89170-0D320, 89170-0D590, 89170-0D600, 89170-0D620.

How does the repair of the 89170-52G80 work?

For the 89170-52G80, first have the fault memory read out, attach the log and disconnect the battery. Then remove the control unit and create a repair order online. Processing at Airbag24 usually takes 3–4 working days.

Then send the unit in, well packed. Airbag24 checks it on the test bench, replaces defective components and erases stored crash data.

A function test follows, after which your own unit is returned. The sequence of these steps is for safety, so it is binding.

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 89170-52G80 get to Airbag24?

You send the control unit 89170-52G80 to Airbag24 as a parcel, or you book a UPS collection for an extra charge. The return after repair is also by UPS.

Enclose the printed repair order with the parcel; pack the control unit shockproof.