Airbag control unit with part number 89170-06231

What does the airbag control unit 89170-06231 do?

The airbag control unit 89170-06231 takes over control of the SRS restraint system for Toyota in the vehicle. It receives the readings from the crash sensors and, in an accident, decides within milliseconds whether airbags and seatbelt pretensioners are triggered.

Outside an accident, the unit checks the system continuously and reports faults to the airbag warning light.

After an accident, it stores crash data and locks itself. Only the repair lifts this lock.

Why does the control unit 89170-06231 fail?

Stored crash data is the most common cause with the 89170-06231, even if no airbag has been triggered. Ageing electronics, cold solder joints, moisture and corrosion on plug connections, and voltage spikes also count among the causes.

Crash data cannot be removed with a normal diagnostic tool. It is only erased during the repair.

The other causes affect the electronics and their plug connections. Age-related changes and cold solder joints impair function, while moisture and corrosion disrupt the contact. Voltage spikes arise, for example, from a weak battery or when jump-starting.

How can you tell that the 89170-06231 is defective?

The airbag warning light in the instrument cluster lights up on the 89170-06231 permanently or intermittently. A fault message in the instrument cluster may appear as well, a diagnostic tool may find no connection, and the fault memory cannot be cleared.

If these indications appear, airbags and seatbelt pretensioners may not deploy in an emergency. This also applies if the vehicle seems unremarkable in everyday use.

A prompt check clarifies which fault is stored and what measure is needed.

Which vehicles is the 89170-06231 fitted in?

In the car, the control unit 89170-06231 is fitted in these models: Toyota Solara ACV30 (2004-2008). You can check whether your car is one of them in the vehicle papers.

The following vehicles are known to us for this unit:

• Toyota Solara ACV30 (2004-2008)

Comparing the part number on the label of the removed unit with this page ensures that you have the correct unit. It does not clarify whether there is a fault in the control unit. That is only shown by reading out the fault memory, which you should arrange in advance.

For the same vehicles, we also repair control units with the part numbers 89170-06230, 89170-06232, 89170-06240, 89170-06241, 89170-06242.

How does the repair of the 89170-06231 work?

First have the fault memory read out and enclose the log. Then disconnect the battery and only then remove the 89170-06231. Create the repair order online and pack the unit well.

Airbag24 checks the unit on the test bench and repairs the defective components. The stored crash data is then deleted and a function test carried out.

Processing at Airbag24 usually takes 3–4 working days. Your own unit is finally 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 89170-06231 get to Airbag24?

The route to Airbag24 is either by parcel or by a UPS collection, which you book for an extra charge. Airbag24 sends the 89170-06231 back to you by UPS after the repair.

Enclose the printed repair order with the parcel. The unit must be packed shock-proof.