Airbag control unit with part number 89170-52G41

What does the airbag control unit 89170-52G41 do?

The airbag control unit 89170-52G41 coordinates the restraint system (SRS) of Toyota. It continuously evaluates the crash sensors and, in an accident, decides within milliseconds which airbags and seatbelt pretensioners are triggered. After an accident it stores crash data and locks itself.

The unit responds to faults in the system with a message on the airbag warning light. The lock after an accident is lifted only by the repair.

Why does the control unit 89170-52G41 fail?

The most common cause on the 89170-52G41 is crash data stored after an accident, even if no airbag was deployed. A standard diagnostic tool cannot erase it. Beyond that, other causes that affect the electronics are possible.

Other causes include:

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

Airbag24 erases the crash data during the repair. The other causes are checked on the test bench.

How can you tell that the 89170-52G41 is defective?

The airbag warning light in the instrument cluster lights up as soon as a defect is present, either continuously or only intermittently. A fault message may also appear in the instrument cluster, the diagnostic tool does not connect to the control unit, or the fault memory remains.

Even with such a defect, airbags and seatbelt pretensioners may not deploy in an emergency. The warning light is therefore a reason to have the vehicle checked promptly.

Which vehicles is the 89170-52G41 fitted in?

The 89170-52G41 is found in these vehicles: Toyota Yaris XP130 2nd Facelift (2017-2020), XP130 (2010-2014) and XP130 1st Facelift (2014-2017).

The vehicles for this part number are listed below:

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

Match the part number on the label of the removed unit with this page, because that confirms you have the correct unit. It does not clarify the cause. So have the fault memory read out first. Only this result shows whether the control unit is defective or a connector 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 89170-52G41 work?

First have the fault memory read out and attach the log. Then disconnect the battery and remove the control unit 89170-52G41. After that, create a repair order online and send in the well-packed unit.

Airbag24 checks the unit on the test bench, repairs defective components, erases the crash data and carries out a function test. For this work at Airbag24, 3–4 working days are usually planned. Afterwards your own unit goes back to you.

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 89170-52G41 get to Airbag24?

You can send the control unit 89170-52G41 as a parcel. Alternatively, you book a UPS collection for an extra charge. Airbag24 sends the repaired unit back to you by UPS.

Place the printed repair order in the parcel, and pack the unit shockproof.