Airbag control unit with part number 89170-47870

What does the airbag control unit 89170-47870 do?

The airbag control unit 89170-47870 controls the restraint system (SRS) for Toyota. It reads the crash sensors, decides within milliseconds in an accident whether airbags and seatbelt pretensioners are triggered, and monitors the system. It shows faults via the airbag warning light.

During operation the unit checks the system without interruption. After an accident it stores crash data and locks itself.

The status of the system is visible to the driver mainly via the instrument cluster.

Why does the control unit 89170-47870 fail?

Stored crash data in the control unit 89170-47870 is the most common cause, even if no airbag was triggered after an accident. A normal diagnostic tool cannot erase it.

Airbag24 removes this crash data during the repair. The following causes are of a general nature and are either ruled out or confirmed during the inspection.

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

How can you tell that the 89170-47870 is defective?

The airbag warning light in the instrument cluster may come on first, staying on permanently or intermittently. Error messages can appear too, along with a missing connection between the diagnostic tool and the control unit 89170-47870 and a fault memory that cannot be cleared.

Such signs must be taken seriously. In an emergency, airbags and seatbelt pretensioners may fail to deploy, so a prompt check is advisable.

Which vehicles is the 89170-47870 fitted in?

The control unit 89170-47870 is fitted in these vehicles: Toyota Prius V XW60 (from 2022).

The list below shows the vehicles assigned to this part number.

• Toyota Prius V XW60 (from 2022)

Have the fault memory read out first. This shows whether the control unit is defective or whether a cable or plug is the cause. Only after that compare the part number on the label of the removed unit with the list.

For the same vehicles, we also repair control units with the part numbers 89170-47030, 89170-47860.

How does the repair of the 89170-47870 work?

Processing at Airbag24 generally takes 3–4 working days. Beforehand, read out the fault memory, disconnect the battery, remove the control unit 89170-47870 and create a repair order online.

Airbag24 inspects the unit on the test bench, repairs defective components, erases the crash data and carries out a functional test. Afterwards your own unit goes back 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 89170-47870 get to Airbag24?

The control unit 89170-47870 can be sent to Airbag24 as a parcel, or you can book a UPS collection for an extra charge. Returns after the repair are made by UPS.

Enclose the printed repair order with the parcel, and pack the unit shock-proof.