Airbag control unit with part number 89170-47610

What does the airbag control unit 89170-47610 do?

The airbag control unit 89170-47610 is the central control unit of the restraint system (SRS) for Toyota. It processes the signals from the crash sensors and, in an accident, triggers the appropriate airbags and seatbelt pretensioners within milliseconds.

The unit monitors the system continuously and shows faults via the airbag warning light in the instrument cluster.

After an accident, it stores crash data and locks itself until it has been repaired.

Why does the control unit 89170-47610 fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed; a normal diagnostic tool does not erase it. Further causes in brief:

The crash data remains in the unit and blocks the diagnosis. Airbag24 erases it during the repair.

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

Causes of this kind develop over the years and cannot be traced back to a single event.

How can you tell that the 89170-47610 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently. In addition, an error message appears in the instrument cluster, the diagnostic tool finds no connection to the control unit, and the fault memory cannot be cleared.

Airbags and seatbelt pretensioners may then possibly not trigger in an emergency. For this reason, the light should not be ignored.

The warning light indicates the defect. If it is on, checking the system is the right next step.

Which vehicles is the 89170-47610 fitted in?

The control unit 89170-47610 is fitted in these vehicles: Toyota Prius IV XW50 (2015-2018) and IV XW50 Facelift (2018-2022). You can check the match with your car on the label.

The vehicles at a glance:

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

If you compare the part number on the removed unit with this page, you have the right unit in front of you. Also have the fault memory read out before sending the unit in. Only this result shows whether the control unit itself is defective or 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 89170-47610 work?

First, have the fault memory read out and attach the log. Then disconnect the battery and remove the control unit. Afterwards, create the repair order online and send the unit in well packed.

The order of these steps is set for your safety. The unit is removed only after the battery has been disconnected.

Airbag24 checks the unit on the test bench, repairs rather than replaces damaged components, deletes the crash data and carries out a function test. Checking, repairing and testing usually takes 3–4 working days at Airbag24. Your own unit then 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 89170-47610 get to Airbag24?

You send the control unit 89170-47610 as a parcel, or book a UPS collection for an extra charge. After the repair, it is returned by UPS.

Place the printed repair order in the parcel and pack the control unit shock-proof.