Airbag control unit with part number 89170-02110

What does the airbag control unit 89170-02110 do?

The airbag control unit 89170-02110 controls the SRS for Toyota. It reads the signals from the crash sensors, determines in an impact within milliseconds the triggering of airbags and seatbelt pretensioners, and monitors the system continuously. Detected faults are shown via the airbag warning light.

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

Even in everyday driving the unit works constantly and checks the connected components.

Why does the control unit 89170-02110 fail?

The most common cause is crash data stored after an accident, even if no airbag has fired. Other causes include ageing components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

Crash data cannot be removed with an ordinary diagnostic tool. It is deleted during the repair at Airbag24.

Electronic components age, and solder joints can go cold without this being visible from outside. Moisture and corrosion at the plugs create transition resistances that lead to faults.

Voltage spikes, for example from a weak battery or from jump-starting, additionally stress the electronics.

How can you tell that the 89170-02110 is defective?

Signs are an airbag warning light that stays on permanently or intermittently, a fault message in the instrument cluster, a missing connection between the diagnostic tool and the control unit, and a fault memory that cannot be cleared. Airbags and seatbelt pretensioners may then not trigger in an emergency.

The airbag warning light shows the defect directly, which makes it the most important hint. These signs are clear enough to justify a check.

Have the display checked promptly.

Which vehicles is the 89170-02110 fitted in?

The control unit 89170-02110 is fitted in these vehicles: Toyota Auris E150 (2006-2010) and E150 Facelift (2010-2012).

The vehicles for this part number are shown in the following overview:

• Toyota Auris E150 (2006-2010)
• Toyota Auris E150 Facelift (2010-2012)

Compare the part number on the label of the removed unit with this page. This only confirms the correct unit. Have the fault memory read out beforehand, because this finding clarifies whether the control unit is defective or whether a connector or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 215537-106, 89170-02560, 89170-0W330, 8924502040.

How does the repair of the 89170-02110 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 unit in well packed. Processing at Airbag24 usually takes 3–4 working days.

At Airbag24 the unit is checked on the test bench, defective components are replaced, stored crash data is removed and a functional test is carried out.

Your own unit then goes 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 89170-02110 get to Airbag24?

You send the unit as a parcel or book a UPS collection for an extra charge. Airbag24 sends it back to you by UPS after the repair.

The printed repair order goes into the parcel, and the unit is packed shock-proof.