Airbag control unit with part number 89170-33B60

What does the airbag control unit 89170-33B60 do?

The control unit 89170-33B60 is the central control unit of the restraint system for Lexus. It evaluates the crash sensors, decides within milliseconds in a crash whether the airbags and seatbelt pretensioners are triggered, and monitors the system at all times. It indicates faults via the airbag warning light.

The crash sensors supply the measured values on which the unit bases its decisions. The monitoring runs in the background while you use the vehicle.

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

Why does the control unit 89170-33B60 fail?

Stored crash data is the most common cause of a failure, even when no airbag has deployed. It cannot be removed with a commercially available diagnostic tool. Other causes include aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

During repair at Airbag24, stored crash data is erased. Aged components and cold solder joints can only be narrowed down within the unit itself.

Voltage spikes occur, for example, when the battery is weak or when jump-starting is used.

How can you tell that the 89170-33B60 is defective?

The airbag warning light in the instrument cluster lights up constantly or at times. A fault message also appears in the instrument cluster. In addition, the diagnostic tool gets no connection to the control unit, and the fault memory cannot be cleared.

In an emergency, airbags and seatbelt pretensioners may then not deploy. If you notice any of these signs, have the vehicle checked promptly.

Which vehicles is the 89170-33B60 fitted in?

The control unit 89170-33B60 is fitted in these vehicles: Lexus ES AXZH60 (from 2018).

Below you will find the vehicles for which this part number is fitted.

• Lexus ES AXZH60 (from 2018)

Compare the part number on the label of the unit with this page. This only confirms that it is the right unit. Have the fault memory read out beforehand, because only this result shows whether the control unit is defective or whether a connector or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 89170-06820, 89170-06850, 89170-06880, 89170-33B90, 89170-33C30, 89170-33C50.

How does the repair of the 89170-33B60 work?

First have the fault memory read out and enclose the log. Then disconnect the battery, and only then remove the control unit 89170-33B60. At Airbag24, processing usually takes 3–4 working days.

Only then do you create a repair order online and send the unit off well packed. Airbag24 tests the unit on the test bench, replaces defective components, erases stored crash data and carries out a function test.

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 89170-33B60 get to Airbag24?

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

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