Airbag control unit with part number 89170-76060

What does the airbag control unit 89170-76060 do?

The airbag control unit 89170-76060 is the central control unit of the restraint system (SRS) for Lexus. It evaluates the signals from the crash sensors and decides in an accident, within a fraction of a second, which airbags and seatbelt pretensioners are triggered.

The control unit monitors the entire system during operation. If it detects a fault, it reports it via the airbag warning light in the instrument cluster.

After an accident the unit stores crash data and then locks itself. Only a repair lifts this lock.

Why does the control unit 89170-76060 fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed. Other causes are aged electronic components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes, for example from a weak battery or a jump start.

Crash data cannot be erased with a standard diagnostic tool. Airbag24 erases it during the repair at the test bench, before the unit is sent back.

Aged electronic components lose reliability over the years. Cold solder joints can cause contact problems that do not occur constantly and are therefore hard to reproduce.

Moisture and corrosion at plug connectors disrupt signal transmission. Voltage spikes, such as those caused by a weak battery or a jump start, put additional strain on the electronics.

How can you tell that the 89170-76060 is defective?

A defect shows up as the airbag warning light in the instrument cluster, which stays on permanently or intermittently. In addition there are fault messages in the instrument cluster, a missing connection between the diagnostic tool and the control unit, and a fault memory that cannot be cleared.

Watch for these signs, because in the event of a fault the airbags and seatbelt pretensioners may fail to deploy in an emergency.

The warning light is the most important indication, because it shows the fault directly.

Which vehicles is the 89170-76060 fitted in?

The airbag control unit 89170-76060 is fitted in these vehicles: Lexus CT ZWA10 (2011-2022).

The list shows the vehicles assigned to this part number:

• Lexus CT ZWA10 (2011-2022)

The comparison of the part number on the label of the removed unit with this page only ensures that you hold the right unit. Have the fault memory read out before removing the unit. Only this log shows whether the control unit itself 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 89170-76060 work?

First have the fault memory read out and enclose the log, then disconnect the battery before you remove the control unit. Processing at Airbag24 usually takes 3–4 working days for checking, repairing and testing.

Only after that do you create a repair order online and pack the unit well before sending it in.

Airbag24 checks the control unit on the test bench and replaces defective components. The crash data is then erased and a function test is carried out, before 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 89170-76060 get to Airbag24?

You send the control unit 89170-76060 as a parcel or, for an extra charge, book a UPS collection. After the repair, Airbag24 sends it to you by UPS.

Pack the control unit shock-proof and put the printed repair order in the parcel.