Airbag control unit with part number 89170-62110

What does the airbag control unit 89170-62110 do?

The airbag control unit 89170-62110 is the central control unit of the restraint system in Toyota vehicles. It reads the signals from the crash sensors, determines within milliseconds in an accident which airbags and seatbelt pretensioners to trigger, and checks the system constantly. It reports faults via the airbag warning light.

After an accident, it stores crash data and is then locked. This lock is lifted only by the repair.

The control unit connects the sensors with the triggers. In operation, you usually notice it only when it displays a fault.

Why does the control unit 89170-62110 fail?

Crash data from an earlier accident is the most common cause, even if no airbag has deployed. An ordinary diagnostic tool does not remove it from the memory. Additional causes include aged components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes from a weak battery or jump-starting.

This data remains even if the vehicle is then used without any restriction.

Aged electronics, cold solder joints, and moisture or corrosion at plug connectors weaken the contact. Voltage spikes add further strain.

How can you tell that the 89170-62110 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, and at the same time an error message appears in the instrument cluster. If the diagnostic tool cannot connect to the control unit and the fault memory cannot be cleared, another sign is present. In an emergency, airbags and seatbelt pretensioners may then possibly fail to deploy.

The warning light's message is clear enough that it should not be ignored.

Take the message seriously and have the system checked. An inspection will establish the cause.

Which vehicles is the 89170-62110 fitted in?

The airbag control unit 89170-62110 is fitted in these vehicles: Toyota Mirai JPD10 (2014-2020).

The vehicles for which this part number is recorded are listed below.

• Toyota Mirai JPD10 (2014-2020)

Check the part number on the label of the removed unit against this page. That shows whether it is the right unit. Have the fault memory read out beforehand, because only this result shows whether the control unit is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 89170-62020, 89170-62100.

How does the repair of the 89170-62110 work?

First, you read out the fault memory and enclose the log. Then you disconnect the battery and only afterwards remove the control unit. Online, you create the repair order and pack the unit well before sending it in.

Airbag24 examines the unit on the test bench, repairs defective components, erases the stored crash data and tests the function. Afterwards, you receive the unit back.

Processing at Airbag24 usually takes 3–4 working days. This period covers only the work carried out in-house, not your steps and not the shipping.

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 89170-62110 get to Airbag24?

Either you send the unit as a parcel, or you book a UPS collection for an extra charge. It comes back to you from Airbag24 by UPS.

The printed repair order goes into the parcel. Make sure the unit is packed shock-proof.