Airbag control unit with part number 89170-26340

What does the airbag control unit 89170-26340 do?

The airbag control unit 89170-26340 is the central control unit of the restraint system (SRS) for Toyota. It evaluates the crash sensors and decides in an accident within milliseconds on the deployment of the airbags and seatbelt pretensioners, and reports faults via the airbag warning light. After an accident it stores crash data and locks itself.

The control unit continuously checks the connected components and records deviations in the fault memory. A diagnostic tool can read this memory.

The lock after an accident is lifted only by the repair.

Why does the control unit 89170-26340 fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed. Other causes include aged electronic components, cold solder joints, humidity and corrosion at plug connectors, and voltage spikes.

Crash data cannot be erased with a normal diagnostic tool. Airbag24 erases it during the repair.

The remaining causes concern the electronics and the connections. Which of them applies to a unit becomes clear only through the examination.

How can you tell that the 89170-26340 is defective?

The airbag warning light in the instrument cluster lights up on the 89170-26340 permanently or intermittently. A fault message appears in the instrument cluster, the diagnostic tool finds no connection to the control unit, and the fault memory cannot be cleared.

In an emergency, airbags and seatbelt pretensioners may not deploy. Such a warning should therefore be checked promptly.

Which vehicles is the 89170-26340 fitted in?

The 89170-26340 is fitted in these vehicles: Toyota HiAce H300 (from 2019).

The list below gives the vehicles in detail.

• Toyota HiAce H300 (from 2019)

Comparing the part number on the label of the removed unit with this page only shows that it is the right unit. Having the fault memory read out before removal, on the other hand, shows whether the control unit is affected or a plug or 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 89170-26340 work?

First, read out the fault memory and enclose the log. Then disconnect the battery and only then remove the control unit. Next, create a repair order online and send the unit in.

Airbag24 checks the unit on the test bench, repairs defective components, erases the stored crash data and carries out a function test. Processing usually takes 3–4 working days, after which the 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 89170-26340 get to Airbag24?

You send the control unit 89170-26340 in 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 shockproof.