Airbag control unit with part number 89170-76030

What does the airbag control unit 89170-76030 do?

The airbag control unit 89170-76030 controls the restraint system (SRS) for Lexus. It processes the signals from the crash sensors and decides in an accident which airbags and seatbelt pretensioners are triggered.

It also monitors the system continuously and reports faults via the airbag warning light.

After an accident, it stores crash data and locks itself.

Why does the control unit 89170-76030 fail?

The most common cause is crash data after an accident, even without a triggered airbag. Voltage spikes, moisture at plug connections, aged components and cold solder joints also contribute.

Crash data cannot be erased with a normal diagnostic tool. Airbag24 erases it during the repair.

Other causes at a glance:

• aged electronic components
• cold solder joints
• moisture and corrosion at plug connections
• voltage spikes, for example with a weak battery or a jump start

How can you tell that the 89170-76030 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently if something is wrong with the 89170-76030. A fault message in the instrument cluster, a missing connection of the diagnostic tool or a fault memory that cannot be cleared are further indications of a defect.

In an emergency, airbags and seatbelt pretensioners may then fail to trigger. That is precisely why you should not ignore the warning light and should have the condition checked promptly.

Which vehicles is the 89170-76030 fitted in?

The 89170-76030 is fitted in these vehicles: Lexus CT ZWA10 (2011-2022).

The vehicles assigned to this part number, as an overview:

• Lexus CT ZWA10 (2011-2022)

Compare the part number on the label of the removed unit with this page. This only confirms that you have the right unit. Read out the fault memory beforehand, because only this log 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 89170-02C30, 89170-76160, 89170-76210, 89170-76220.

How does the repair of the 89170-76030 work?

First read out the fault memory and enclose the log. Then disconnect the battery, and only then remove the control unit. Create a repair order online, then send the unit in, well packed.

Airbag24 checks the unit 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 89170-76030 get to Airbag24?

The control unit 89170-76030 reaches Airbag24 as a parcel, either by your dispatch or with a UPS collection booked 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.