Airbag control unit with part number 89170-02V10

What does the airbag control unit 89170-02V10 do?

The 89170-02V10 is the airbag control unit for Toyota and part of the restraint system (SRS). It analyses the crash sensors and, when an accident happens, decides within fractions of a second which airbags and seatbelt pretensioners are triggered.

During operation it checks the entire system and displays faults via the airbag warning light. After an accident it secures crash data and locks itself.

Why does the control unit 89170-02V10 fail?

The most common cause with the 89170-02V10 is crash data stored after an accident, even without a triggered airbag. A normal diagnostic tool cannot erase this data. Aged electronics, cold solder joints, moisture and voltage spikes also play a role.

Airbag24 removes crash data as part of the repair, so the unit comes back without it.

Aged electronics, cold solder joints and moisture tend to act gradually. Voltage spikes arise, for example, from a weak battery or when a jump-start cable is connected, and they can strain the circuit.

How can you tell that the 89170-02V10 is defective?

With the 89170-02V10, the airbag warning light in the instrument cluster is the first sign of a defect when it lights up constantly or intermittently. A fault message or a diagnostic tool with no connection to the control unit also indicates this.

If the warning light is on, airbags and seatbelt pretensioners may not be able to deploy in an emergency. If the fault memory cannot be cleared, a check is all the more urgent.

Which vehicles is the 89170-02V10 fitted in?

You can check whether your vehicle matches the unit using the details on the vehicle registration document. The 89170-02V10 is intended for Toyota and is fitted in these vehicles: Toyota Corolla E210 (2018-2022) and E210 Facelift (from 2022).

You will find an overview of the vehicles here:

• Toyota Corolla E210 (2018-2022)
• Toyota Corolla E210 Facelift (from 2022)

Have the fault memory read out before you remove the unit. The log shows whether the control unit itself is affected or whether a plug or a cable is the cause. Afterwards compare the part number on the label with this page, and only to confirm that you have the correct unit.

For the same vehicles, we also repair control units with the part numbers 89170-02N50, 89170-02T10, 89170-02W80, 89170-0F150.

How does the repair of the 89170-02V10 work?

Reading out the fault memory comes first, and the log goes with the unit. Then disconnect the battery and only then remove the 89170-02V10. Create the repair order online and send in the well-packed unit. Processing at Airbag24 usually takes 3–4 working days.

At Airbag24 the unit is put on the test bench, defective components are repaired, crash data is erased and a functional test is carried out. Afterwards your own unit is 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 89170-02V10 get to Airbag24?

You send the 89170-02V10 in as a parcel or book a UPS collection for an extra charge. 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.