Airbag control unit with part number 89170-0N010

What does the airbag control unit 89170-0N010 do?

The airbag control unit 89170-0N010 is the central control unit of the restraint system (SRS) for Toyota. It evaluates the signals from the crash sensors and, in the event of an accident, decides within milliseconds which airbags and seatbelt pretensioners are triggered. It monitors the system continuously.

It reports faults via the airbag warning light in the instrument cluster.

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

The unit is one of the safety-relevant components in the vehicle.

Why does the control unit 89170-0N010 fail?

Stored crash data is the most common cause with the 89170-0N010, namely after an accident, even if no airbag has been triggered. Other causes are aged electronic components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes, for example from a weak battery or a jump start. With this control unit, the crash data often cannot be erased; if you would like it erased, contact Airbag24 briefly before sending the unit in.

A standard diagnostic tool cannot erase this crash data.

Aged electronic components and cold solder joints can also lead to a failure. Moisture and corrosion at plug connectors are among the causes as well.

How can you tell that the 89170-0N010 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, and a fault message appears in the instrument cluster. The diagnostic tool cannot connect to the control unit 89170-0N010, and the fault memory cannot be erased. In an emergency, the airbags and seatbelt pretensioners may then fail to deploy.

A light that comes on only now and then still reports a fault. Do not ignore it.

Which vehicles is the 89170-0N010 fitted in?

The control unit 89170-0N010 is fitted in these vehicles: Toyota Crown S210 (2012-2018).

The vehicles for which this part number is on record are listed here:

• Toyota Crown S210 (2012-2018)

Compare the part number on the label of the removed unit with this page. This only confirms that it is the right unit. Have the fault memory read out beforehand, because only its result shows whether the control unit is defective or whether a plug or a cable is the cause. Check every digit of the number, including the letters at the end.

For the same vehicles, we also repair control units with the part numbers 89170-0N040, 89170-0N050, 89170-30J00.

How does the repair of the 89170-0N010 work?

First have the fault memory read out and enclose the log; then disconnect the battery and only afterwards remove the control unit. Next, create a repair order online and send the 89170-0N010 in, well packed. Inspection, repair and testing at Airbag24 usually take 3–4 working days.

Airbag24 checks the unit on the test bench, replaces defective components and carries out a function test. Afterwards, your own unit is returned to you.

If you would like the crash data erased, contact Airbag24 briefly before sending the unit in.

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 89170-0N010 get to Airbag24?

You send the control unit 89170-0N010 in as a parcel, or book a UPS collection for an extra charge. After the repair, Airbag24 returns it by UPS.

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

Pad the unit so that it does not shift in the box.