Airbag control unit with part number 89170-35360

What does the airbag control unit 89170-35360 do?

The airbag control unit 89170-35360 controls the restraint system (SRS) in vehicles of Toyota. It processes the signals from the crash sensors, decides in a crash within milliseconds on airbags and seatbelt pretensioners, and monitors the system permanently during operation.

The unit reports faults via the airbag warning light in the instrument cluster. Anyone who watches the light therefore notices a fault in the restraint system early.

After an accident the control unit stores crash data and locks itself. This lock ends only with the repair.

Why does the control unit 89170-35360 fail?

Stored crash data from an accident is the most common cause, even if the airbag has not deployed. Ageing electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, such as from a weak battery or a jump start, are also possible causes.

Such crash data cannot be erased with a normal diagnostic tool. It remains in the control unit until it is removed during the repair.

The other causes lie in the electronics themselves or in the connections. Solder joints can go cold, plug connections corrode or become damp, and voltage spikes stress the unit during operation.

How can you tell that the 89170-35360 is defective?

An airbag warning light in the instrument cluster that lights up permanently or intermittently is the clearest sign. There is also an error message, the diagnostic tool receives no connection to the control unit, and the fault memory cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then not trigger.

The airbag warning light in the instrument cluster is the most important indicator. It shows the defect as soon as it is present.

Only a read-out of the fault memory confirms whether the control unit itself is affected.

Which vehicles is the 89170-35360 fitted in?

The control unit 89170-35360 is fitted in these vehicles: Toyota FJ Cruiser GSJ15 (2006-2022).

The following overview lists the vehicles assigned to this part number.

• Toyota FJ Cruiser GSJ15 (2006-2022)

Compare the part number on the label of the removed unit with this page, so that you can be sure you have the correct unit. Before that, have the fault memory read out, because the 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 89170-35300, 89170-35320, 89170-35380, 89170-35470.

How does the repair of the 89170-35360 work?

For the 89170-35360, you first read out the fault memory and enclose the log. Then you disconnect the battery and remove the control unit. Online you create a repair order, after which you send in the carefully packed unit. Processing at Airbag24 takes 3–4 working days as a rule.

The order is prescribed for safety reasons. At Airbag24 the unit is checked on the test bench, defective components are replaced, the crash data is erased and a function test is carried out. 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 89170-35360 get to Airbag24?

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

The printed repair order belongs in the parcel. The unit must be packed shock-proof.