Airbag control unit with part number 89170-60220

What does the airbag control unit 89170-60220 do?

The 89170-60220 controls the restraint system (SRS) of Toyota and is its central unit. From the signals of the crash sensors it calculates within milliseconds which airbags and seatbelt pretensioners must be triggered, and it monitors the entire system continuously.

The signals come from several sensors in the vehicle. The control unit evaluates them together and decides on triggering in the event of an impact. Outside an accident, it also checks the connected components such as sensors, cables and plugs, and shows every detected fault via the airbag warning light.

After an accident, the unit stores crash data and is locked afterwards. This lock is only lifted by the repair.

Why does the control unit 89170-60220 fail?

The most common cause of the 89170-60220 is stored crash data from an accident, even if no airbag was triggered. Other causes are ageing components, cold solder joints, moisture and corrosion, and voltage spikes.

Crash data cannot be deleted with a normal diagnostic tool. Airbag24 removes it during the repair.

The further triggers in detail:

• Ageing electronic components lose reliability over time.
• Cold solder joints can interrupt connections or make them unstable.
• Moisture and corrosion at plug connections disrupt the contact.
• Voltage spikes, for example from a weak battery or a jump start, stress the electronics.

How can you tell that the 89170-60220 is defective?

The airbag warning light in the instrument cluster stays on constantly or intermittently, and an error message appears there. In addition, the diagnostic tool cannot establish a connection to the 89170-60220, and the fault memory cannot be cleared.

Such a finding means that airbags and seatbelt pretensioners may not deploy in an emergency. The light is therefore not a minor matter that will sort itself out later.

It is safest to have the fault memory read out promptly.

Which vehicles is the 89170-60220 fitted in?

The 89170-60220 is found in these vehicles: Toyota Land Cruiser J100 (1998-2007).

The list below shows the vehicles known to us for this part number.

• Toyota Land Cruiser J100 (1998-2007)

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

For the same vehicles, we also repair control units with the part numbers 89170-60160, 89170-60330, 89170-60540, 89170-60F00.

How does the repair of the 89170-60220 work?

First read out the fault memory and enclose the protocol with the parcel. Then disconnect the battery before you remove the 89170-60220. Next, create the repair order online and pack the unit carefully for dispatch.

Airbag24 examines the unit on the test bench. Defective components are repaired, the stored crash data is deleted, and a function test is carried out.

Processing at Airbag24 usually takes 3–4 working days.

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 89170-60220 get to Airbag24?

The 89170-60220 reaches Airbag24 either as a parcel or with a UPS collection booked for an extra charge. The return after the repair is made by UPS.

Enclose the printed repair order in the parcel. Pack the unit shockproof.