Airbag control unit with part number 89170-0K110

What does the airbag control unit 89170-0K110 do?

The airbag control unit 89170-0K110 coordinates the restraint system (SRS) of Toyota. It checks the signals from the crash sensors and decides in an accident, within milliseconds, which airbags and seatbelt pretensioners are triggered.

Monitoring also runs constantly. Every fault it detects is shown via the airbag warning light in the instrument cluster.

After an accident the unit creates crash data and locks itself.

Why does the control unit 89170-0K110 fail?

The most common cause is crash data stored after an accident, even if no airbag was triggered. An ordinary diagnostic tool cannot delete it. Further causes are:

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

A failure may therefore rest on the crash data alone, but it does not have to. The remaining points concern electronics and connections in general.

How can you tell that the 89170-0K110 is defective?

A defect shows up as the airbag warning light, which lights up permanently or intermittently, as an error message in the instrument cluster, as a missing connection from the diagnostic tool, or as a fault memory that cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then possibly not trigger.

• Airbag warning light lights up permanently or intermittently
• Error message in the instrument cluster
• Diagnostic tool receives no connection to the control unit
• Fault memory cannot be cleared

As soon as one of these signs appears, have the vehicle checked promptly. The warning light shows the defect, and the restraint system then needs an inspection.

Which vehicles is the 89170-0K110 fitted in?

The control unit 89170-0K110 is fitted in these vehicles: Toyota Fortuner AN50 (2005-2015).

These vehicles are recorded for this part number:

• Toyota Fortuner AN50 (2005-2015)

Comparing the part number on the label of the removed unit with this page only confirms that it is the correct unit. Have the fault memory read out beforehand, because only its result shows whether the control unit itself is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 231000-4761-93C56, 231000-4781-93C56, 89170-0K131, 89170-0K181.

How does the repair of the 89170-0K110 work?

The fault memory is read out and the log enclosed. The battery is disconnected before the control unit is removed. The repair order is created online, then the unit is packed and sent. At Airbag24, inspection, repair and function test usually take 3–4 working days.

Airbag24 inspects the control unit on the test bench, replaces defective components and deletes the stored crash data. A function test concludes the work, after which your own unit comes 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 89170-0K110 get to Airbag24?

Shipping is possible as a parcel that you send yourself, and also by UPS collection booked for an extra charge. The return after the repair is handled by UPS.

The printed repair order goes into the parcel, and the control unit is packed shock-proof.