Airbag control unit with part number 89170-08250

What does the airbag control unit 89170-08250 do?

The airbag control unit 89170-08250 is the central control unit that evaluates the crash sensors. In a crash it decides within milliseconds on the triggering of airbags and seatbelt pretensioners in the restraint system (SRS) of Toyota.

It monitors the system continuously and indicates faults via the airbag warning light.

Crash data is stored after a crash, after which the unit locks itself.

Why does the control unit 89170-08250 fail?

The 89170-08250 most often fails because crash data was stored after a crash, even if no airbag was triggered. An ordinary diagnostic tool cannot erase it.

Further causes are:

• aged components in the electronics
• cold solder joints
• moisture and corrosion at plug connections
• voltage spikes, for example from a weak battery or jump start

How can you tell that the 89170-08250 is defective?

The airbag warning light in the instrument cluster lights up constantly or intermittently as soon as there is a fault in the 89170-08250. A fault message, no connection to the diagnostic tool or a fault memory that cannot be erased may also appear.

A fault memory that cannot be erased points more to the control unit than to a cable. If no connection is established, the cause must still be clarified.

In an emergency, airbags and seatbelt pretensioners may possibly fail to deploy while the fault persists.

Which vehicles is the 89170-08250 fitted in?

Compare your vehicle with the overview. The airbag control unit 89170-08250 is fitted in these vehicles: Toyota Sienna XL30 (2010-2020).

The vehicles concerned in detail:

• Toyota Sienna XL30 (2010-2020)

Have the fault memory read out before removal so that it is clear whether the control unit itself is defective. Only then is it worth comparing the part number on the label of the removed unit.

For the same vehicles, we also repair control units with the part numbers 89170-08040, 89170-08130, 89170-08140, 89170-08170, 89170-08230.

How does the repair of the 89170-08250 work?

You read out the fault memory, enclose the log and disconnect the battery. Then remove the 89170-08250, create the repair order online and pack the unit well. Processing at Airbag24 takes 3–4 working days as a rule for testing, repairing and checking.

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

Finally you receive your own unit back. 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 89170-08250 get to Airbag24?

You send the control unit 89170-08250 as a parcel or additionally book a UPS collection. After repair, Airbag24 returns it by UPS.

Enclose the printed repair order and protect the unit with shockproof packaging.