Airbag control unit with part number 89170-47810

What does the airbag control unit 89170-47810 do?

The airbag control unit 89170-47810 coordinates the restraint system (SRS) of Toyota. It measures via the crash sensors how strong an impact is and then decides which airbags and seatbelt pretensioners are triggered. After an accident the unit stores crash data and locks itself.

The system checks itself during operation. If the unit finds a fault, the airbag warning light comes on.

The lock is lifted only by the repair.

Why does the control unit 89170-47810 fail?

The most common cause in the 89170-47810 is crash data stored after an accident, even if no airbag was triggered. It cannot be erased with a normal diagnostic tool; Airbag24 removes it during the repair. Aged components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes also play a role.

Crash data is held in the memory of the control unit. Because the unit retains it, the fault persists even when nothing visible has changed on the car.

The other causes relate to ageing and moisture. Components wear out over time, solder joints can break, and water or rust in the connector disturb the contact. Voltage spikes, for example from a weak battery or jump-starting, come in as a final cause.

How can you tell that the 89170-47810 is defective?

On the 89170-47810, the airbag warning light in the instrument cluster lights up permanently or intermittently. An error message, a missing connection to the diagnostic tool and a fault memory that cannot be cleared also appear.

The signs at a glance:

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

In this state, airbags and seatbelt pretensioners may not be triggered in an emergency. Do not rely on the defect disappearing on its own.

Which vehicles is the 89170-47810 fitted in?

The 89170-47810 is fitted in these vehicles: Toyota Prius V XW60 (from 2022). This assignment is based on the part number.

The list of vehicles appears directly below.

• Toyota Prius V XW60 (from 2022)

Whether it is the right unit you see when you compare the part number on the label with this page. Whether the control unit itself is defective or a plug or cable is the cause only becomes clear from the fault memory read out beforehand.

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

How does the repair of the 89170-47810 work?

First have the fault memory read out on the 89170-47810 and enclose the log. Then disconnect the battery and only then remove the control unit. Afterwards create the repair order online and pack the unit well. At Airbag24, checking, repairing and testing usually take 3–4 working days.

At Airbag24 the unit is checked, defective components are repaired, the crash data is deleted and a function test is carried out. Finally the 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 89170-47810 get to Airbag24?

You can send the 89170-47810 as a parcel or book a UPS collection for an extra charge. The return after the repair is made by UPS.

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