Airbag control unit with part number 89170-02410

What does the airbag control unit 89170-02410 do?

Control of the restraint system (SRS) in Toyota is handled by the airbag control unit 89170-02410. It evaluates the crash sensors and, in a collision, determines within milliseconds which airbags and seatbelt pretensioners fire.

In addition, the unit continuously checks the system for faults. It reports these via the airbag warning light in the instrument cluster.

After an accident it stores crash data and then locks itself. Its function is therefore closely tied to the evaluation of the sensors.

Why does the control unit 89170-02410 fail?

Crash data from an accident is the most common cause, even if no airbag has deployed. A normal diagnostic tool cannot remove it from control unit 89170-02410. Other causes include aged electronics, cold solder joints, moisture and corrosion, and voltage spikes.

The crash data remains stored until Airbag24 removes it during the repair.

The other causes tend to be gradual or external: electronics age, connections oxidise, and voltage fluctuations stress the circuit. At a glance:

• aged electronic components
• cold solder joints
• moisture and corrosion at plug connections
• voltage spikes, for example with a weak battery or a jump start

How can you tell that the 89170-02410 is defective?

The airbag warning light in the instrument cluster stays on permanently or intermittently if something is wrong with control unit 89170-02410. A fault message, no connection to the diagnostic tool and a fault memory that cannot be cleared may also occur; in an emergency, airbags and seatbelt pretensioners may then not deploy.

Pay particular attention to the following signs:

• airbag warning light that is on permanently or intermittently
• fault message in the instrument cluster
• diagnostic tool cannot find the control unit
• fault memory cannot be cleared

Signs like these are a clear reason to have the fault memory read out before taking further steps.

Which vehicles is the 89170-02410 fitted in?

Control unit 89170-02410 is fitted in these models: Toyota Corolla E120 (2001-2004) and E120 Facelift (2004-2007). The information comes from the data for this part number.

Below you will find the list of vehicles we have assigned to this unit.

• Toyota Corolla E120 (2001-2004)
• Toyota Corolla E120 Facelift (2004-2007)

Compare the part number on the label of the removed unit with this page, so that you have the correct unit in front of you. Have the fault memory read out beforehand, because only this record shows 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 89170-02180, 89170-02240, 89170-02390, 89170-02411, 89170-02G60, 89170-12160.

How does the repair of the 89170-02410 work?

First have the fault memory read out and attach the log. Then disconnect the battery and only afterwards remove control unit 89170-02410. Online you create the repair order and pack the unit well. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 examines the submitted control unit on the test bench and repairs defective components on the unit. Stored crash data is erased, and then a function test follows. Your own unit is then 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 89170-02410 get to Airbag24?

You send control unit 89170-02410 either as a parcel or book a UPS collection for an extra charge. After the repair, the unit comes back to you by UPS.

Put the printed repair order in the parcel, and pack the unit shock-proof.