Airbag control unit with part number 89170-60F80

What does the airbag control unit 89170-60F80 do?

The airbag control unit 89170-60F80 is the central control of the restraint system for Toyota. It evaluates the sensor signals, determines in an accident in fractions of a second which airbags and seatbelt pretensioners to trigger, and monitors the state of the system. After an accident it stores crash data and locks itself.

The system is under constant supervision. A detected fault is reported by the unit via the warning light in the instrument cluster.

Every second counts for triggering, so the unit must be able to rely on reliable input signals.

Why does the control unit 89170-60F80 fail?

Stored crash data after an accident is the most common cause, even if the airbag did not trigger. Aged electronics, cold solder joints, moisture and corrosion on plug connections, and voltage spikes are added to this. The crash data are erased during the repair of the 89170-60F80 by Airbag24.

Ordinary read-out devices do not erase this data; it remains stored until the repair.

Ageing and wear of the electronics as well as voltage spikes, for example with a weak battery or a jump start, make up the remaining causes.

How can you tell that the 89170-60F80 is defective?

The airbag warning light in the instrument cluster is the clearest sign; it lights up permanently or intermittently. In addition an error message appears, and the diagnostic tool cannot reach the 89170-60F80. In an emergency, airbags and seatbelt pretensioners could therefore fail to trigger.

Even a single illumination must not be ignored, even if the light goes out again afterwards.

The error message does not name the reason. Only the read-out with the diagnostic tool shows whether the control unit itself or a wire is affected. A workshop check should take place promptly.

Which vehicles is the 89170-60F80 fitted in?

The 89170-60F80 is fitted in these vehicles: Toyota Land Cruiser J300 (from 2021).

Here you see the vehicles line by line.

• Toyota Land Cruiser J300 (from 2021)

Before removal you have two things to do. You compare the part number with the label of the unit to make sure you have the right unit. You also have the fault memory read out beforehand: only this shows whether the control unit itself is defective or a connector or cable is to blame.

How does the repair of the 89170-60F80 work?

The first step is reading out the fault memory of the 89170-60F80 and attaching the log. Then disconnect the battery and remove the unit. Finally create the repair order online and send the control unit well packed.

At Airbag24 the unit goes through a check on the test bench, replacement of defective components, erasing of the crash data and a function test.

As a rule, allow 3–4 working days for checking, repairing and testing at Airbag24.

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 89170-60F80 get to Airbag24?

You send the 89170-60F80 as a parcel or have it collected by UPS for an extra charge. Airbag24 sends the repaired unit back to you by UPS.

Enclose the printed repair order in the parcel and ensure shock-proof packaging.