Airbag control unit with part number 89170-04730

What does the airbag control unit 89170-04730 do?

The airbag control unit 89170-04730 is the central controller of the restraint system (SRS) in Toyota vehicles. It reads the crash sensors and decides within milliseconds in an impact which airbags and seatbelt pretensioners are triggered.

In addition, it monitors the entire system continuously. It reports faults via the airbag warning light in the instrument cluster.

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

Why does the control unit 89170-04730 fail?

With the 89170-04730, the most common cause is crash data stored after an accident, even if no airbag was triggered. Other causes are possible in general.

Specifically, these are the following points:

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

Crash data cannot be erased with a standard diagnostic tool. Airbag24 removes it during repair.

How can you tell that the 89170-04730 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently on the 89170-04730. A fault message may also appear in the instrument cluster.

The airbag warning light is the most important warning sign. It indicates a fault in the restraint system as soon as the control unit detects one. While it is lit, airbags and seatbelt pretensioners may not deploy in an emergency.

A fault message in the instrument cluster, a diagnostic tool without a connection to the control unit, or a fault memory that cannot be cleared are further indications. In that case, have the system checked promptly.

Which vehicles is the 89170-04730 fitted in?

The 89170-04730 is fitted in these vehicles: Toyota Tacoma N300 (2015-2019) and N300 Facelift (2019-2023).

The overview shows the models assigned to this part number:

• Toyota Tacoma N300 (2015-2019)
• Toyota Tacoma N300 Facelift (2019-2023)

Comparing the part number on the label of the removed unit with this page ensures that it is the correct unit. Whether the control unit is defective or a plug or cable is the cause only becomes clear once the fault memory has been read out. Have it read out beforehand.

For the same vehicles, we also repair control units with the part numbers 89170-04080, 89170-04120, 89170-04150, 89170-04570.

How does the repair of the 89170-04730 work?

For the repair of the 89170-04730, first have the fault memory read out and enclose the log. Then disconnect the battery and only then remove the control unit. Afterwards, create a repair order online.

Pack the unit carefully and send it in. Airbag24 checks it on the test bench, finds defective components and repairs them. The crash data is then erased and a function test is carried out.

Airbag24 processes the unit in 3–4 working days. Afterwards, your own unit is returned. 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 89170-04730 get to Airbag24?

You send the control unit 89170-04730 in as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 sends it back to you via UPS.

Put the printed repair order into the parcel and pack the unit shockproof.