Airbag control unit with part number 89170-52M60

What does the airbag control unit 89170-52M60 do?

The airbag control unit 89170-52M60 manages the restraint system (SRS) in the Toyota. It checks the signals from the crash sensors, determines within milliseconds in a crash which airbags and seatbelt pretensioners fire, and monitors the condition of the system. After an accident it stores crash data and locks itself.

If it detects a fault, the airbag warning light in the instrument cluster becomes active.

To do this, it works together with sensors and triggers distributed throughout the vehicle.

Why does the control unit 89170-52M60 fail?

On the 89170-52M60, the most common cause is crash data stored after an accident, even if no airbag has deployed. Other possible causes include aged electronic components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes.

The crash data remains in the unit because a standard diagnostic tool cannot erase it.

Components age over time, solder joints can go cold, and plug connectors corrode when moisture gets in.

A weak battery or a jump start can produce voltage spikes that stress the electronics.

How can you tell that the 89170-52M60 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently on the 89170-52M60. In addition, there are typical signs you may notice if there is a defect:

• Fault message in the instrument cluster
• Diagnostic tool cannot connect to the control unit
• Fault memory cannot be cleared

With these signs, airbags and seatbelt pretensioners may not deploy in an emergency.

The warning light is the vehicle's direct indication, so have the fault checked promptly.

Which vehicles is the 89170-52M60 fitted in?

The 89170-52M60 is fitted in these vehicles: Toyota Yaris XP130 2nd Facelift (2017-2020), XP130 (2010-2014) and XP130 1st Facelift (2014-2017). Only a comparison with the label on the removed unit confirms whether your vehicle is among them.

These vehicles are listed:

• Toyota Yaris XP130 2nd Facelift (2017-2020)
• Toyota Yaris XP130 (2010-2014)
• Toyota Yaris XP130 1st Facelift (2014-2017)

Comparing the number on the label ensures you have the right unit. Have the fault memory read out in addition before removal, because only this result 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 2310009950, 89170-0D300, 89170-0D320, 89170-0D590, 89170-0D600, 89170-0D620.

How does the repair of the 89170-52M60 work?

For the 89170-52M60, read out the fault memory, enclose the log and disconnect the battery before removing the control unit. Then create a repair order online and send the unit in well packed. At Airbag24, checking, repairing and testing usually takes 3–4 working days.

On the test bench, Airbag24 examines the unit, repairs faults in defective components, erases the crash data and carries out a final function test.

Keep to the order, as safety comes first when working with 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 89170-52M60 get to Airbag24?

You send the 89170-52M60 to Airbag24 as a parcel, or book a UPS collection for an extra charge. After the repair, Airbag24 sends the unit back to you by UPS.

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