Airbag control unit with part number 89170-02J10

What does the airbag control unit 89170-02J10 do?

The airbag control unit 89170-02J10 controls the restraint system (SRS) for Toyota. It evaluates the signals from the crash sensors and decides in a crash within milliseconds which airbags and seatbelt pretensioners are triggered. Faults in the system are shown via the airbag warning light.

During operation the unit monitors the components of the system. It checks connections, supply and trigger stages and records abnormalities in the fault memory.

After an accident it stores crash data and locks itself.

Why does the control unit 89170-02J10 fail?

The most common cause is crash data from an accident, even if no airbag was triggered. A normal diagnostic tool cannot remove this data. Aged components, cold solder joints, moisture at plug connections and voltage spikes are also possible causes.

Crash data is the record of an event. It remains in the unit even if nothing else seems wrong.

The other causes concern the electronics themselves. Over time components age, solder joints can go cold, and moisture and corrosion attack plug connections. Voltage spikes, for example from a weak battery or a jump start, also affect the unit.

How can you tell that the 89170-02J10 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, and an error message appears in the instrument cluster. In addition, a diagnostic tool with no connection to the control unit, or a fault memory that cannot be cleared, indicates a problem. Airbags and seatbelt pretensioners may then possibly not deploy in an emergency.

The warning light is the direct display of the system and therefore the most important warning sign. Have the restraint system checked at a specialist workshop promptly for each of these signs.

Which vehicles is the 89170-02J10 fitted in?

The control unit 89170-02J10 is fitted in these vehicles: Toyota Corolla E170 (2013-2018). The list below makes it easier to compare with your own car.

Here are the vehicles for which we have this part number.

• Toyota Corolla E170 (2013-2018)

Before removal, steps that complement each other help. Comparing the number on the label with this page only confirms that you have the right unit in front of you. The fault memory read out, however, shows whether the control unit itself is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 89170-02C60, 89170-02C70, 89170-02C80, 89170-02C90, 89170-12280, 89170-12340.

How does the repair of the 89170-02J10 work?

Have the fault memory read out and attach the log, then disconnect the battery and remove the control unit. Then create a repair order online and send the well-packed unit. Processing at Airbag24 usually takes 3–4 working days.

At Airbag24 the unit is examined on the test bench. Defective components are repaired, stored crash data erased and a function test carried out before your own unit is returned.

The order before removal serves safety when handling the restraint system.

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 89170-02J10 get to Airbag24?

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

Print the repair order and enclose it in the parcel. Pack the unit shock-resistantly.