Airbag control unit with part number 89170-02M60

What does the airbag control unit 89170-02M60 do?

The airbag control unit 89170-02M60 controls the restraint system (SRS) for Toyota. It evaluates the crash sensors, determines the triggering of airbags and seatbelt pretensioners in an accident within milliseconds, and monitors all components continuously.

If it detects a fault, it switches on the airbag warning light in the instrument cluster and stores the fault. The sensors only provide the data; the control unit makes the decision.

After an accident, the unit records crash data and locks itself. The next sections explain causes and signs.

Why does the control unit 89170-02M60 fail?

On the 89170-02M60, crash data stored after an accident is what leads to failure in particular, even if no airbag has fired. Ageing electronic components, cold solder joints, moisture, corrosion at plug connections and voltage spikes also belong to the causes.

The crash data remains stored, although no airbag has fired, and a normal diagnostic tool does not erase it. This is exactly why it cannot simply be reset.

The other causes concern the electronics themselves and their connections. Components age, solder joints can have gone cold, and moisture or corrosion impair the plug connections. Voltage spikes arise, for example, with a weak battery or when a jump start is used.

How can you tell that the 89170-02M60 is defective?

A defect in the 89170-02M60 can be recognised by the airbag warning light, messages in the instrument cluster and a diagnostic tool that cannot establish a connection.

These signs indicate a defect:

• Airbag warning light stays on permanently
• Airbag warning light comes on only intermittently
• Error message in the instrument cluster
• Diagnostic tool does not connect to the control unit
• Fault memory cannot be cleared

As long as a fault is present, airbags and seatbelt pretensioners may possibly not deploy in an emergency. Have it checked promptly.

Which vehicles is the 89170-02M60 fitted in?

The control unit 89170-02M60 is fitted in these vehicles: Toyota Corolla E210 (2018-2022) and E210 Facelift (from 2022).

The vehicles held for this part number are shown below.

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

Compare the part number on the label of the removed unit with this page, to make sure that it is the right control unit. Also have the fault memory read out beforehand; only then does it become clear whether the control unit is faulty or whether a line or plug is the cause.

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 89170-02M60 work?

You have the fault memory of the 89170-02M60 read out and enclose the log, then disconnect the battery. Only then remove the control unit and create the repair order online. Processing at Airbag24 usually takes 3–4 working days.

The sequence must be observed for safety reasons and must not be changed.

At Airbag24, the unit is examined on the test bench, defective components are repaired where necessary, the crash data is erased and a function test is carried out. Your own unit is then sent 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 89170-02M60 get to Airbag24?

You send the control unit 89170-02M60 as a parcel, or you book a UPS collection for an extra charge. Airbag24 sends it back by UPS after the repair.

Enclose the printed repair order with the parcel and pack the control unit shock-resistant before it is sent.