Airbag control unit with part number 89170-33800

What does the airbag control unit 89170-33800 do?

The airbag control unit 89170-33800 coordinates the restraint system (SRS) of Toyota. It checks the crash sensors, determines in a crash which airbags and seatbelt pretensioners are triggered, and monitors the system during operation.

The unit reports faults via the airbag warning light in the instrument cluster. The light makes a fault visible to the driver.

After a crash, the unit stores crash data and locks itself. The following sections explain what this means for the repair.

Why does the control unit 89170-33800 fail?

Stored crash data is the most common cause, and this applies even if no airbag was triggered in the accident. Added to this are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

Crash data cannot be removed with a normal diagnostic tool. The other causes affect the electronics themselves and their connections.

How can you tell that the 89170-33800 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, and 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 then not trigger.

The airbag warning light is the most important sign that something is wrong in the system. It points directly to the protective function.

If you see the light permanently or intermittently, have the fault memory read out.

Which vehicles is the 89170-33800 fitted in?

The control unit 89170-33800 is fitted in these vehicles: Toyota Camry XV50 (2011-2019).

We assign these models to the part number:

• Toyota Camry XV50 (2011-2019)

Compare the part number on the label of the removed unit with this page. This is the only way to confirm that it is the matching unit. Before you remove or send the unit, have the fault memory read out; only 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 150800-2310, 89170-06670, 89170-06671, 89170-06770.

How does the repair of the 89170-33800 work?

Airbag24 usually needs 3–4 working days for checking, repair and function test. The unit is examined on the test bench, defective components are replaced and stored crash data is erased.

First you carry out a few steps yourself: have the fault memory read out and enclose the readout log with the unit. Then disconnect the battery, remove the control unit and create a repair order online before sending it in.

This sequence serves safety. After the function test, 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 89170-33800 get to Airbag24?

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

Shock-proof packaging protects the unit in transit; enclose the printed repair order with it.