Airbag control unit with part number 89170-08150

What does the airbag control unit 89170-08150 do?

The airbag control unit 89170-08150 coordinates the SRS in Toyota. It evaluates the crash sensors and decides in a crash, within milliseconds, which airbags and seatbelt pretensioners are triggered. In addition, it checks the entire system for faults continuously.

If the unit detects a fault, the airbag warning light in the instrument cluster comes on. This signal is the direct feedback from the control unit to the driver.

After an accident it stores crash data and locks itself. Only the repair lifts the lock.

Why does the control unit 89170-08150 fail?

The most common cause of a failure of the 89170-08150 is stored crash data, even when no airbag has been triggered. Further causes are ageing electronics, cold solder joints, moisture with corrosion and voltage spikes.

Crash data cannot be erased with a standard diagnostic tool. Airbag24 removes it during the repair, so that the unit is clear of it afterwards.

The other causes are components that age, solder joints that go cold, and moisture that corrodes contacts. Voltage spikes, for example from a weak battery or a jump start, put additional strain on the electronics.

How can you tell that the 89170-08150 is defective?

The airbag warning light in the instrument cluster stays on permanently or intermittently when the 89170-08150 has a defect. A fault message, a diagnostic tool without connection to the control unit and a fault memory that cannot be cleared also occur.

In an emergency, airbags and seatbelt pretensioners may then fail to trigger. The warning light must therefore be taken seriously, even if the vehicle normally runs fine in daily use.

The warning light shows the fault before a crash reveals it. A check is therefore part of road safety.

Which vehicles is the 89170-08150 fitted in?

The 89170-08150 is fitted in these vehicles: Toyota Sienna XL30 (2010-2020). The information refers to this part number only.

These vehicles are recorded for this part number:

• Toyota Sienna XL30 (2010-2020)

Comparing the part number on the label of the removed unit with this page confirms that you have the right unit. Whether the control unit is defective or a plug or cable is the cause is shown only by the fault memory. Have it read out before removal.

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 89170-08150 work?

Processing of the 89170-08150 at Airbag24 usually takes 3–4 working days, counting only checking, repairing and testing. You start your own process by reading out the fault memory.

First have the fault memory read out and attach the log to the unit. Then disconnect the battery and remove the control unit.

Next create the repair order online and send in the well-packed unit. Airbag24 checks it on the test bench, replaces defective components, erases the crash data and carries out a function test. Then 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 89170-08150 get to Airbag24?

You can send the 89170-08150 in as a parcel or book a UPS collection for an extra charge. Airbag24 handles the return shipment after the repair with UPS.

The printed repair order goes in the parcel. Pack the unit shock-resistant.