Airbag control unit with part number 89170-06230

What does the airbag control unit 89170-06230 do?

As the central element, the airbag control unit 89170-06230 controls the restraint system (SRS) of Toyota. It processes the signals from the crash sensors and, in a collision, decides within a few milliseconds whether airbags and seatbelt pretensioners are triggered.

It also monitors the entire system continuously for faults. If it detects a malfunction, it reports this to the driver via the airbag warning light in the instrument cluster.

After an accident, the control unit stores crash data and is then locked. The lock only ends with a repair.

Why does the control unit 89170-06230 fail?

The most common cause is crash data stored after an accident, even if no airbag was triggered. Other possible causes are ageing electronic components, cold solder joints, moisture and corrosion on plug connectors, and voltage spikes.

An ordinary diagnostic tool cannot erase stored crash data. Airbag24 removes it completely during the repair, before the unit goes through the test.

A control unit can also fail without an accident. In that case, components that weaken over the years are responsible, or solder joints that loosen.

Moisture and corrosion impair the contact in the plugs. Voltage spikes, for example from a weak battery or a jump start, can also damage the electronics.

How can you tell that the 89170-06230 is defective?

A fault is indicated by the airbag warning light. It stays on permanently or flickers, accompanied by an error message in the instrument cluster. In addition, the diagnostic tool finds no connection to the control unit, and the fault memory cannot be emptied.

• The airbag warning light stays on constantly.
• The warning light only comes on now and then.
• The instrument cluster displays an error message.
• A diagnostic tool cannot establish a connection.
• The fault memory cannot be cleared.

In such cases, there is a risk that airbags and seatbelt pretensioners will not trigger in an accident. The warning signal should therefore be taken seriously.

The warning light is the system's warning. If it is ignored, a message the control unit itself provides is lost.

Which vehicles is the 89170-06230 fitted in?

The 89170-06230 is fitted in these vehicles: Toyota Solara ACV30 (2004-2008).

The vehicles in which this control unit was installed are listed below.

• Toyota Solara ACV30 (2004-2008)

Check the part number on the label of the removed unit against this page. This way you can see that you have the matching unit in hand.

Have the fault memory read out beforehand. Only this will show whether the control unit itself is affected or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 89170-06231, 89170-06232, 89170-06240, 89170-06241, 89170-06242.

How does the repair of the 89170-06230 work?

First have the fault memory read out and enclose the log. Then disconnect the battery, only then remove the control unit, and create a repair order online. Processing at Airbag24 usually takes 3–4 working days.

This sequence is for safety. The control unit must not be removed without the battery disconnected. Afterwards, pack it carefully and send it in.

Airbag24 checks the unit on the test bench and repairs defective components. The stored crash data is then erased, and a function test follows. The repaired unit is then returned to you.

The 3–4 working days apply exclusively to checking, repair and testing at Airbag24 and not to your steps.

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 89170-06230 get to Airbag24?

You send the control unit 89170-06230 in as a parcel, or you book a UPS collection. After the repair, Airbag24 returns it to you by UPS.

Put the printed repair order into the parcel and pack the control unit shock-proof.