Airbag control unit with part number 89170-52G61

What does the airbag control unit 89170-52G61 do?

The airbag control unit 89170-52G61 controls the restraint system (SRS) of Toyota. It processes the crash sensor data, selects in an accident within milliseconds the airbags and seatbelt pretensioners to fire, and monitors the system continuously.

The control unit reports faults via the airbag warning light in the instrument cluster.

After an accident it records crash data and locks itself.

Why does the control unit 89170-52G61 fail?

Stored crash data is the most frequent reason for a failure at the 89170-52G61, even without an airbag having fired. Common diagnostic tools cannot remove this data. Secondary causes are aged electronics, cold solder joints, moisture and corrosion, as well as voltage spikes.

The crash data is the record of the event held in the control unit.

The other causes act over a longer period and show up at contacts or components before the unit reports a fault.

How can you tell that the 89170-52G61 is defective?

The airbag warning light in the instrument cluster stays on permanently or flickers from time to time. At the 89170-52G61, an error message and a diagnostic tool without a connection are added, along with a fault memory that cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then fail to fire.

The lamp shows defects in the restraint system, even when the vehicle runs normally in everyday use.

An inspection then narrows down the problem.

Which vehicles is the 89170-52G61 fitted in?

The 89170-52G61 is fitted in these vehicles: Toyota Yaris XP130 2nd Facelift (2017-2020), XP130 (2010-2014) and XP130 1st Facelift (2014-2017).

The individual vehicles for which this part number is on record are listed here:

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

Before you send it in, compare the part number on the label with this page. This only clarifies whether it is the right unit. The cause is found only through the fault memory, which you have read out beforehand: only this record shows whether the control unit is defective or a plug or cable is behind the fault.

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 89170-52G61 work?

The process starts with reading out the fault memory at the 89170-52G61, and you attach its log. Then disconnect the battery, remove the control unit, create a repair order online and send in the well-packed unit. At Airbag24, checking, repairing and testing usually take 3–4 working days.

Airbag24 replaces defective components and erases stored crash data before the function test runs.

The order of the steps serves the safety of the restraint system.

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 89170-52G61 get to Airbag24?

You send the 89170-52G61 to Airbag24 as a parcel, or have it collected by UPS for an extra charge. After the repair, Airbag24 sends it back by UPS.

Put the printed repair order into the parcel. Pack the control unit to withstand shocks, so that it survives shipping intact.