Airbag control unit with part number 89170-20180

What does the airbag control unit 89170-20180 do?

The airbag control unit 89170-20180 coordinates the restraint system (SRS) in the Toyota. It evaluates the crash sensors, determines within milliseconds in an accident which airbags and seatbelt pretensioners are triggered, and checks the system continuously. Faults are shown to the driver via the airbag warning light.

After an accident, the unit stores crash data and locks itself. The self-check continues in the background without you noticing anything.

Why does the control unit 89170-20180 fail?

Stored crash data is the most common cause, even if no airbag has deployed. A normal diagnostic tool cannot delete it. Ageing electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes are also possible causes.

Airbag24 removes the crash data during the repair, so the unit can work normally again afterwards.

Voltage spikes occur, for example, with a weak battery or when jump-start cables are connected. Moisture and corrosion mainly attack plug contacts.

How can you tell that the 89170-20180 is defective?

A fault shows itself through an airbag warning light in the instrument cluster that lights up permanently or intermittently, through a fault message in the instrument cluster, and through a diagnostic tool that cannot establish a connection to the control unit. In addition, the fault memory cannot be cleared.

With such a finding, airbags and seatbelt pretensioners may not deploy in an emergency. The warning light is therefore a warning signal that you should take seriously promptly.

Which vehicles is the 89170-20180 fitted in?

The control unit 89170-20180 is fitted in these vehicles: Toyota Celica T230 Facelift (2002-2005) and T230 (1999-2002).

The vehicles known to us for this part number follow below.

• Toyota Celica T230 Facelift (2002-2005)
• Toyota Celica T230 (1999-2002)

Comparing the part number on the label of the removed unit with this page only ensures that it is the right unit. Whether the control unit itself is defective, or a plug or cable is the cause, is shown only by the fault memory read beforehand.

For the same vehicles, we also repair control units with the part numbers 152300-3341, 89170-20150.

How does the repair of the 89170-20180 work?

Processing at Airbag24 usually takes 3–4 working days: examination, repair and function test. Before sending it in, have the fault memory read, disconnect the battery and remove the control unit.

Afterwards, create a repair order online and send in the unit well packed. Airbag24 examines it on the test bench, replaces defective components, deletes stored crash data and carries out a function test.

Then your own unit is sent 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 89170-20180 get to Airbag24?

You send the control unit in 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 shock-proof.