Airbag control unit with part number 89170-0E330

What does the airbag control unit 89170-0E330 do?

In Toyota vehicles the airbag control unit 89170-0E330 processes the signals from the crash sensors and decides in an accident which airbags and seatbelt pretensioners are triggered. It also continuously monitors the entire restraint system (SRS). After an accident it stores crash data and locks itself.

The triggering decision is made within milliseconds, and the unit records faults in its memory. The airbag warning light makes faults visible to the driver.

Why does the control unit 89170-0E330 fail?

With the 89170-0E330, the most common cause is crash data stored after an accident, which a normal diagnostic tool cannot delete. In addition there are aged components, corrosion on plugs, cold solder joints and voltage spikes.

Crash data is also stored when no airbag was triggered in the accident. The other causes concern the electronics and their connections: components age over time, moisture attacks plug connectors, and voltage spikes arise, for example, from a weak battery or during a jump-start. Which cause is present only the inspection shows.

How can you tell that the 89170-0E330 is defective?

With the 89170-0E330, a defect shows as an airbag warning light in the instrument cluster that stays on permanently or intermittently, as a fault message in the instrument cluster, or as a lack of connection to the diagnostic tool. In an emergency, airbags and seatbelt pretensioners may then not trigger.

Signs that point to this:

• the warning light stays on after switching on the ignition
• the instrument cluster shows a fault message on the airbag system
• the diagnostic tool cannot establish a connection to the control unit
• the fault memory cannot be cleared

Which vehicles is the 89170-0E330 fitted in?

The airbag control unit 89170-0E330 is fitted in these vehicles: Toyota Harrier XU80 (from 2020).

This overview is based on the part number and shows the matching models:

• Toyota Harrier XU80 (from 2020)

Comparing the part number on the label of the removed unit with this page ensures that the unit is the correct one; it does no more than that. Decisive for whether the control unit is defective is the fault memory. Have it read out beforehand, because a connector or cable can be the cause just as well.

How does the repair of the 89170-0E330 work?

Have the fault memory read out first, then disconnect the battery and only then remove the 89170-0E330. Next, create a repair order online and send the unit in. At Airbag24, checking, repairing and the function test normally take 3–4 working days.

The order of steps serves safety during removal. At Airbag24 the unit is checked, defective components are repaired, stored crash data is deleted, and the unit goes through a function test before 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 89170-0E330 get to Airbag24?

Send the control unit 89170-0E330 as a parcel, or alternatively book a UPS collection for an extra charge. Airbag24 sends the unit back to you by UPS after the repair.

The printed repair order goes into the parcel. Pack the unit shock-proof, and it will normally survive transport undamaged.