Airbag control unit with part number 89170-35350

What does the airbag control unit 89170-35350 do?

The airbag control unit 89170-35350 coordinates the restraint system in the Toyota vehicle. It receives the values from the crash sensors and decides in an accident which airbags and seatbelt pretensioners trigger. The decision is made within a fraction of a second, and at the same time the system continuously checks itself.

If the unit detects a fault, the airbag warning light in the instrument cluster lights up. This display is the visible sign that something is wrong in the restraint system.

After an accident the control unit stores crash data and locks itself. The lock is only lifted by the repair.

Why does the control unit 89170-35350 fail?

The most common cause is crash data stored after an accident, even if no airbag was triggered. Normal diagnostic tools cannot erase this data. Further causes include aged components, moisture, corrosion and voltage spikes.

The crash data therefore stays in the unit even if nothing noticeable happens in everyday use. Airbag24 erases it during the repair.

Cold solder joints arise when connections on the circuit boards are not soldered cleanly. Moisture and corrosion reach plug connectors, and voltage spikes occur, for example, with a weak battery or when a jump start is connected.

How can you tell that the 89170-35350 is defective?

A defect becomes visible through the airbag warning light in the instrument cluster, which lights up continuously or intermittently. In addition there are fault messages in the instrument cluster, a diagnostic tool without connection to the control unit, and a fault memory that cannot be cleared.

As long as these signs are present, airbags and seatbelt pretensioners may possibly not trigger in an emergency. This applies regardless of how well the vehicle runs in everyday use.

Which vehicles is the 89170-35350 fitted in?

The 89170-35350 is fitted in these vehicles: Toyota FJ Cruiser GSJ15 (2006-2022).

The models recorded for this part number are in the list:

• Toyota FJ Cruiser GSJ15 (2006-2022)

Comparing the part number on the label of the removed unit with this page only confirms the identity of the unit. The fault memory, by contrast, shows whether the control unit is defective or whether a plug or cable is the cause. Therefore have it read out beforehand.

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 89170-35350 work?

First have the fault memory read out and enclose the log to the unit. Then disconnect the battery and only afterwards remove the control unit. Next, create the repair order online and send in the well-packed unit.

At Airbag24 the unit is checked on the test bench. Defective components are replaced, stored crash data is erased and a function test concludes the work. Processing takes 3–4 working days.

Afterwards your own unit is returned 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 89170-35350 get to Airbag24?

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

Pack the unit shockproof and put the printed repair order into the parcel.