Airbag control unit with part number 89170-47661

What does the airbag control unit 89170-47661 do?

The airbag control unit 89170-47661 belongs to the restraint system (SRS) of Toyota. It measures via the crash sensors whether and how hard an impact occurs, and triggers the right airbags and seatbelt pretensioners within milliseconds.

During operation, it checks the system continuously and reports faults via the airbag warning light.

After an accident, the unit stores crash data and remains locked afterwards.

Why does the control unit 89170-47661 fail?

Crash data after an accident is the most common cause of failure for the 89170-47661, even if no airbag has fired; an ordinary diagnostic tool cannot erase it. In addition, ageing components, cold solder joints, moisture and corrosion on plug connections, as well as voltage spikes, come into consideration.

As long as the crash data is stored, the fault remains in the system, even if all other parts are in order.

The other causes develop over years. Electronics age, solder joints become brittle and moisture attacks the plugs. Voltage spikes, by contrast, are short-term, for example with a weak battery or a jump start.

How can you tell that the 89170-47661 is defective?

A defect in the 89170-47661 is recognisable mainly by the airbag warning light in the instrument cluster, which stays on permanently or intermittently. Also fault messages, a missing connection to the diagnostic tool and a fault memory that cannot be cleared.

In an emergency, airbags and seatbelt pretensioners may then not trigger. Such a finding therefore belongs in a timely professional examination.

Which vehicles is the 89170-47661 fitted in?

The 89170-47661 is fitted at Toyota in these vehicles: Toyota Prius IV XW50 (2015-2018) and IV XW50 Facelift (2018-2022).

The list of vehicles follows here:

• Toyota Prius IV XW50 (2015-2018)
• Toyota Prius IV XW50 Facelift (2018-2022)

Compare the part number on the label of the removed unit with this page. The comparison only shows that you have the correct unit, nothing more. Have the fault memory read out beforehand, because only that result shows whether the control unit is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 89170-47030, 89170-47611.

How does the repair of the 89170-47661 work?

At Airbag24, processing usually takes 3–4 working days. Beforehand, read out the fault memory, disconnect the battery and remove the 89170-47661. Then create a repair order online and send the unit packed.

Airbag24 checks the unit, replaces defective components, erases the crash data and carries out a function test.

The unit then returns 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 89170-47661 get to Airbag24?

There are two options for shipping: you send the 89170-47661 to Airbag24 as a parcel, or you book a UPS collection for an extra charge. The return is made by UPS.

The printed repair order goes into the parcel, and the unit is packed shock-proof.