Airbag control unit with part number 89170-26630

What does the airbag control unit 89170-26630 do?

The control unit 89170-26630 forms the central control of the restraint system (SRS) in Toyota vehicles. It processes the crash sensors, decides in a collision within milliseconds on airbags and seatbelt pretensioners, and monitors the system continuously. It shows faults via the airbag warning light.

Monitoring covers sensors, wiring, triggering elements and seatbelt pretensioners.

After an accident the unit stores crash data and then locks itself.

Why does the control unit 89170-26630 fail?

The most common cause is crash data stored after an accident, even without an airbag deployment, which a normal diagnostic tool cannot delete. Other causes are ageing electronic components, cold solder joints, moisture and corrosion, and voltage spikes.

Stored crash data cannot be seen on the vehicle. The cause therefore remains hidden until the fault memory has been read out.

Other factors also play a role:

• ageing electronics
• cold solder joints
• moisture and corrosion on plug connectors
• voltage spikes, for example from a weak battery or a jump start

Airbag24 removes the crash data during the repair.

How can you tell that the 89170-26630 is defective?

A defect in the 89170-26630 can be recognised by the airbag warning light in the instrument cluster, which lights up permanently or intermittently. An error message in the instrument cluster, a missing contact with the diagnostic tool, or a fault memory that cannot be cleared also indicate it. The airbags and seatbelt pretensioners may then fail to deploy in an emergency.

In concrete terms, this shows up as follows:

• airbag warning light on permanently or intermittently
• error message in the instrument cluster
• diagnostic tool receives no connection to the control unit
• fault memory cannot be cleared

If you notice any of these signs, have the system checked promptly. This signal from the system cannot be overlooked.

Which vehicles is the 89170-26630 fitted in?

The control unit 89170-26630 is fitted by Toyota in this vehicle: Toyota HiAce H300 (from 2019).

The vehicles for this part number are compiled here.

• Toyota HiAce H300 (from 2019)

Compare the number on the label of your removed control unit with this page. This only tells you whether it is the correct unit. Have the fault memory read out in advance so that it becomes clear whether the control unit or a cable is the cause.

For the same vehicles, we also repair control units with the part numbers 152100-4560, 89170-42D50.

How does the repair of the 89170-26630 work?

First you read out the fault memory and attach the log to the parcel. Then you disconnect the battery, and only then remove the control unit 89170-26630. Testing, repair and function test at Airbag24 usually take 3–4 working days.

In the next step, you create the repair order online and send in the carefully packed unit. Airbag24 tests it on the test bench, replaces defective components, deletes the crash data and carries out a function test.

Your own unit then 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 89170-26630 get to Airbag24?

You send the control unit 89170-26630 as a parcel or arrange a UPS collection for an extra charge. After the repair, Airbag24 sends it back to you by UPS.

Print the repair order and put it in the parcel. Pack the control unit shock-proof.