Airbag control unit with part number 89170-02530

What does the airbag control unit 89170-02530 do?

The airbag control unit 89170-02530 is the central control unit of the restraint system (SRS) for Toyota. It evaluates the crash sensors, determines in a crash within milliseconds which airbags and seatbelt pretensioners are triggered, and checks the system continuously. If it finds a fault, it shows it via the airbag warning light.

The check runs during operation, whether or not an accident has happened. In this way faults are noticed long before the triggering matters.

After an accident it stores crash data and locks itself.

Why does the control unit 89170-02530 fail?

Stored crash data is the most common cause of a failure. It arises after an accident, even if no airbag has fired, and a normal diagnostic tool cannot remove it. Further triggers are aged electronics, cold solder joints, moisture and corrosion on plug connections, and voltage spikes.

Aged components and cold solder joints cannot be recognised from outside; for that, the unit needs to be examined.

Voltage spikes arise, for example, when the battery is weak or jump-starting is carried out.

How can you tell that the 89170-02530 is defective?

The airbag warning light in the instrument cluster shows the defect when it lights up constantly or intermittently. Fault messages in the instrument cluster, a diagnostic tool without a connection and a fault memory that cannot be cleared are added to this.

These signs are a warning that cannot be overlooked. As long as the problem exists, airbags and seatbelt pretensioners may not trigger in an emergency.

Which vehicles is the 89170-02530 fitted in?

The airbag control unit 89170-02530 is fitted in these vehicles: Toyota Auris E150 (2006-2010) and E150 Facelift (2010-2012). Before removal, check on the label of the unit whether the part number matches.

The assignment at a glance:

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

The label comparison with this page only ensures that the correct unit is present. Have the fault memory read out beforehand, because the log shows whether the control unit is defective or whether a connector or a 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 89170-02530 work?

Before removal, have the fault memory read out and enclose the log. Once that is done, disconnect the battery and take the 89170-02530 out of the vehicle. Afterwards create the repair order online and pack the unit well. At Airbag24 itself, processing usually takes 3–4 working days.

Airbag24 checks the control unit on the test bench, replaces defective components, erases the stored crash data and carries out a functional test. Afterwards your own unit goes back.

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 89170-02530 get to Airbag24?

You send the 89170-02530 unit as a parcel to Airbag24, or you book a UPS collection for an extra charge. After the repair, Airbag24 returns it by UPS.

Enclose the printed repair order. Pack the unit shock-proof so that it survives the journey undamaged.