Airbag control unit with part number 89170-07541

What does the airbag control unit 89170-07541 do?

As the central control unit of the SRS for Toyota, the airbag control unit 89170-07541 works. It processes the signals from the sensors that report an impact and determines, in a crash, whether airbags and seatbelt pretensioners are triggered. After an accident it stores crash data and locks itself.

The electronics monitor the system continuously. A detected fault appears via the airbag warning light in the instrument cluster.

Why does the control unit 89170-07541 fail?

Crash data from an accident are the most common cause, even if no airbag has deployed. Further causes include ageing of the electronics, cold solder joints, moisture and corrosion on the connectors, and voltage spikes.

Crash data are created in the control unit and cannot be removed with a normal diagnostic tool. The fault therefore remains.

Ageing of components or a cold solder joint can likewise cause a fault. Weak batteries and jump-starts generate voltage spikes that strain the electronics.

How can you tell that the 89170-07541 is defective?

The airbag warning light indicates a defect in the 89170-07541 by lighting up permanently or intermittently. A fault message accompanies it, the diagnostic tool fails to establish a connection, or the fault memory cannot be cleared.

Airbags and seatbelt pretensioners may then not deploy in an emergency. The warning light therefore deserves your attention.

Which vehicles is the 89170-07541 fitted in?

The control unit 89170-07541 is fitted in these models: Toyota Avalon XX50 Facelift (from 2022) and XX50 (2018-2022).

The following models belong to this part number:

• Toyota Avalon XX50 Facelift (from 2022)
• Toyota Avalon XX50 (2018-2022)

Matching the number on the label with this page only confirms the identity of the unit. Whether the control unit itself is defective or a connector or cable is the cause is decided only by the fault memory, which you have read out beforehand.

How does the repair of the 89170-07541 work?

Before removal, have the fault memory read out and enclose the log, then disconnect the battery. Only then remove the control unit 89170-07541. Examining, repairing and testing at Airbag24 usually take 3–4 working days.

Afterwards you create a repair order online and pack the unit well before it is sent. Airbag24 examines it, rectifies defective components, erases crash data and performs a final functional check. Then you receive your own unit back.

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 89170-07541 get to Airbag24?

The control unit 89170-07541 goes to Airbag24 as a parcel, or you book a UPS collection for an extra charge. The return after repair is made by UPS.

You pack the unit shock-proof and add the printed repair order.