Airbag control unit with part number 89170-02860

What does the airbag control unit 89170-02860 do?

The airbag control unit 89170-02860 coordinates the restraint system (SRS) for Toyota. It checks the sensor signals, decides in a crash whether airbags and seatbelt pretensioners are triggered, and monitors the entire system.

During operation the unit reports detected faults via the airbag warning light in the instrument cluster. It works unobtrusively and continuously in the background.

After a crash it stores crash data and locks itself.

Why does the control unit 89170-02860 fail?

The most common cause is crash data from an accident, even if no airbag has deployed. Other causes include aged electronics, cold solder joints, moisture and corrosion on plugs, and voltage spikes.

Crash data cannot be erased with a normal diagnostic tool, which is exactly why the fault persists. Airbag24 erases the data during the repair.

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

How can you tell that the 89170-02860 is defective?

A defect shows up as the airbag warning light lighting up permanently or intermittently, as a fault message in the instrument cluster, as a missing contact of the diagnostic tool, and as a fault memory that cannot be cleared.

These signs can occur individually or together. In an emergency, airbags and seatbelt pretensioners may then fail to deploy, so the warning must be taken seriously.

Which vehicles is the 89170-02860 fitted in?

The control unit 89170-02860 is fitted in these vehicles: Toyota Corolla E140 (2006-2013).

The following models are assigned to this part number:

• Toyota Corolla E140 (2006-2013)

Comparing the part number on the label of the removed unit with this page makes sure you removed the right unit. Also have the fault memory read out beforehand, because only the result shows whether the control unit is defective or a cable is the cause.

For the same vehicles, we also repair control units with the part numbers 89170-0F032, 89170-12160.

How does the repair of the 89170-02860 work?

First read out the fault memory and attach the log. Then disconnect the battery, and afterwards remove the control unit. Next, create a repair order online; processing at Airbag24 usually takes 3–4 working days.

Send the unit in well packed. Airbag24 tests it on the test bench, repairs defective components, erases the crash data and runs a function test before your own unit goes back to you.

This period applies exclusively to testing, repairing and function testing. 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 89170-02860 get to Airbag24?

You send the control unit as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 returns it by UPS.

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