Airbag control unit with part number 89170-0E480

What does the airbag control unit 89170-0E480 do?

The airbag control unit 89170-0E480 controls the restraint system (SRS) in the Toyota. It evaluates the crash sensors, determines in an accident which airbags and seatbelt pretensioners are triggered, and checks the system constantly. It shows detected faults via the airbag warning light.

The system is checked continuously during operation, including the wiring and firing circuits. The fault memory records every irregularity.

If an accident happens, the unit stores crash data and locks itself.

Why does the control unit 89170-0E480 fail?

With the 89170-0E480, the most common cause is crash data stored after an accident, even if no airbag was triggered. Further causes are aged components, cold solder joints, moisture or corrosion at plug connections, and voltage spikes.

A standard diagnostic tool cannot remove this crash data.

Only a test can narrow down the other causes. Voltage spikes arise, for example, from a weak battery or a jump-start.

How can you tell that the 89170-0E480 is defective?

The airbag warning light in the instrument cluster lights up constantly or intermittently, and an error message appears in the instrument cluster. In addition, the diagnostic tool finds no connection to the 89170-0E480, or the fault memory cannot be cleared.

As long as the fault persists, airbags and seatbelt pretensioners may not trigger in an actual accident. The light shows the fault, and you must act on this warning.

Which vehicles is the 89170-0E480 fitted in?

The 89170-0E480 is fitted in these vehicles: Toyota Grand Highlander (from 2024).

The list of vehicles for this part number is directly below.

• Toyota Grand Highlander (from 2024)

Compare the part number of the removed unit with this page. That only confirms that it is the correct unit. Whether the control unit itself or a plug or cable causes the fault is shown only by the fault memory, so have it read out first.

For the same vehicles, we also repair control units with the part numbers 89170-0E720, 89170-0E730, 89170-0E740, 89170-0E760.

How does the repair of the 89170-0E480 work?

First you have the fault memory read out and attach the log. Then you disconnect the battery and only then remove the control unit 89170-0E480. Processing at Airbag24 usually takes 3–4 working days.

Then you create the repair order online and send the unit in, well packed. At Airbag24 it is first tested on the test bench, defective components are replaced, crash data is cleared, and a functional test follows. Afterwards your own unit is returned 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 89170-0E480 get to Airbag24?

You send the control unit 89170-0E480 as a parcel to Airbag24, or you book a UPS collection for an extra charge. After the repair, the unit reaches you again by UPS.

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