Airbag control unit with part number 89170-0E380

What does the airbag control unit 89170-0E380 do?

In the vehicle, the airbag control unit 89170-0E380 evaluates the signals from the crash sensors and decides in an accident which airbags and seatbelt pretensioners are triggered. It monitors the restraint system for Toyota continuously. After an accident it stores crash data and locks itself.

The decision is made within milliseconds, that is, while the impact is still under way. If the unit detects a fault in the system, it shows this via the airbag warning light in the instrument cluster.

Why does the control unit 89170-0E380 fail?

The most common cause in the 89170-0E380 is crash data stored after an accident, even if no airbag has triggered, and a normal diagnostic tool cannot erase it. Other causes are ageing electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example from a weak battery or jump-starting.

Airbag24 removes the crash data during the repair, so you do not need to carry out any intervention for it.

The other causes arise over time or from external influences on the electrical system. Whether one of them applies is shown only by the examination on the test bench.

How can you tell that the 89170-0E380 is defective?

The airbag warning light in the instrument cluster lights up on the 89170-0E380 either permanently or intermittently. In addition, an error message appears in the instrument cluster, and the fault memory cannot be cleared.

Typical signs are:

• The airbag warning light stays on permanently or flickers
• An error message is shown in the instrument cluster
• The diagnostic tool gets no connection to the control unit
• The fault memory cannot be cleared

In an emergency, airbags and seatbelt pretensioners may then fail to trigger. Have the finding checked promptly.

Which vehicles is the 89170-0E380 fitted in?

The control unit 89170-0E380 is fitted in these vehicles: Toyota Highlander XU70 (from 2019).

These vehicles are recorded for this part number:

• Toyota Highlander XU70 (from 2019)

Comparing the part number on the label of the removed unit with this page only shows whether it is the correct unit, nothing more. Have the fault memory read out beforehand, because only this result shows whether the control unit is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 89170-0E690.

How does the repair of the 89170-0E380 work?

First have the fault memory of the 89170-0E380 read out and enclose the log. Then disconnect the battery, only then remove the control unit, create a repair order online and send the unit in well packed. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 tests the unit on the test bench, erases the stored crash data, renews defective components and carries out a functional test. The 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 89170-0E380 get to Airbag24?

You send the control unit 89170-0E380 as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 returns it to you by UPS.

Put the printed repair order into the parcel and pack the unit shockproof.