Airbag control unit with part number 89170-0F080

What does the airbag control unit 89170-0F080 do?

In the vehicle from Toyota, the airbag control unit 89170-0F080 takes over control of the restraint system (SRS). It evaluates the crash sensors, decides in an accident within milliseconds on the triggering of airbags and seatbelt pretensioners, and monitors the system permanently. Detected faults are shown via the airbag warning light.

In normal operation it remains unobtrusive. After an accident it stores crash data and locks itself.

The electronics work closely with the sensors and firing circuits, which is why the unit is regarded as a central component of the safety system.

Why does the control unit 89170-0F080 fail?

The most common cause is crash data from an accident, which is stored even if the airbag did not trigger. In addition, aged components, cold solder joints, moisture and corrosion, as well as voltage spikes, can bring about the failure.

Reading out with a usual diagnostic tool does not remove this data.

The other causes can be summarised briefly:

• ageing of electronic components
• cold solder joints
• moisture and corrosion at plug connections
• voltage spikes, for example with a weak battery or jump-starting

How can you tell that the 89170-0F080 is defective?

The airbag warning light in the instrument cluster indicates the defect when it stays on permanently or intermittently. An error message in the instrument cluster, no contact with the diagnostic tool, or a fault memory that cannot be cleared also point to it. In these cases the airbags and seatbelt pretensioners may possibly fail to deploy in a crash.

If the light comes on, have the cause investigated so that you know where you stand.

Which vehicles is the 89170-0F080 fitted in?

This control unit is found in these vehicles: Toyota Verso AR10 (2004-2007) and AR10 Facelift (2007-2009).

Here is the overview:

• Toyota Verso AR10 (2004-2007)
• Toyota Verso AR10 Facelift (2007-2009)

Comparing the part number on the label of the removed unit with this page only confirms the identity of the unit. You should have the fault memory read out beforehand, because only this result shows whether the control unit is the cause or whether a cable or plug is affected.

For the same vehicles, we also repair control units with the part numbers 89170-0F022, 89170-0F050, 89170-0F070.

How does the repair of the 89170-0F080 work?

Have the fault memory read out and attach the log. Then disconnect the battery, remove the control unit and create a repair order online. You pack the unit carefully and send it in; Airbag24 checks it, replaces components where necessary, erases the crash data and carries out a function test.

Processing at Airbag24 usually takes 3–4 working days.

Keep to this sequence without fail. 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 89170-0F080 get to Airbag24?

Either you send the unit in a parcel, or you arrange a UPS collection for an extra charge. After the repair, UPS brings the unit back to you.

Enclose the printed repair order with the parcel, and make sure the unit is packed shock-proof.