Airbag control unit with part number 89170-33P60

What does the airbag control unit 89170-33P60 do?

The airbag control unit 89170-33P60 is responsible for the restraint system (SRS) of Lexus. It processes the signals from the crash sensors, determines in the event of an accident whether the airbags and seatbelt pretensioners are triggered, and monitors the system continuously.

The unit makes faults visible via the airbag warning light in the instrument cluster. After an accident, crash data is stored and the unit locks itself.

The function works in the background, independently of the driver, and that is exactly where its value for safety lies.

Why does the control unit 89170-33P60 fail?

The most common cause of a failure of the 89170-33P60 is stored crash data, even if no airbag was triggered in the accident. Other causes are ageing electronics, moisture or corrosion at plugs, and voltage spikes.

Stored crash data remains in the control unit, even if no airbag has deployed. A normal diagnostic tool cannot remove it.

During the repair, Airbag24 erases the crash data. The other causes concern ageing electronics, solder joints, moisture at plug connections and voltage spikes.

How can you tell that the 89170-33P60 is defective?

On the 89170-33P60, you recognise a defect by the airbag warning light in the instrument cluster, which lights up permanently or intermittently. In addition, a fault message appears, the diagnostic tool has no connection, or a fault memory cannot be cleared.

The system has then detected a fault, and the warning light makes this visible to you.

In an emergency, airbags and seatbelt pretensioners may therefore fail to trigger, so have the vehicle checked promptly.

Which vehicles is the 89170-33P60 fitted in?

The control unit 89170-33P60 is fitted in these vehicles: Lexus ES AXZH60 (from 2018). This list serves as a first check before you remove the unit.

The assigned vehicle is listed here:

• Lexus ES AXZH60 (from 2018)

Compare the part number on the label of the removed unit with this page. This makes sure that it is the right unit. Also have the fault memory read out beforehand. Only that result shows whether the control unit is defective or whether a plug or a cable is the cause.

For the same vehicles, we also repair control units with the part numbers 89170-06590, 89170-06880.

How does the repair of the 89170-33P60 work?

First have the fault memory read out and enclose the log. Then disconnect the battery, and only then remove the control unit 89170-33P60. Next, create a repair order online and send the unit in.

Pack the unit well so that it arrives undamaged. Airbag24 checks it on the test bench, replaces defective components, erases the stored crash data and carries out a function test.

Processing at Airbag24 usually takes 3–4 working days. 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 89170-33P60 get to Airbag24?

You send the control unit 89170-33P60 to Airbag24 as a parcel, or you book a UPS collection for an extra charge. After the repair, Airbag24 returns it to you by UPS.

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