Airbag control unit with part number 89170-0E760

What does the airbag control unit 89170-0E760 do?

The airbag control unit 89170-0E760 controls the restraint system (SRS) of Toyota. It reads the signals from the crash sensors, determines within milliseconds in the event of an accident which airbags and seatbelt pretensioners are to fire, and monitors the system continuously.

Faults that occur are reported by the unit via the airbag warning light in the instrument cluster. To do this, it continuously checks sensors, wiring and the airbag triggering circuits, so that a deviation is noticed during operation and not only in an emergency.

After an accident the control unit stores crash data and then locks itself. Anyone who wants to read the unit out or put it back into operation afterwards runs into exactly this lock.

Why does the control unit 89170-0E760 fail?

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

A standard diagnostic tool cannot erase this crash data. Airbag24 erases it during the repair and then continues to test the unit.

The other causes are related to ageing and environmental influences. Solder joints can give way over time, moisture and corrosion affect plug contacts, and every voltage spike puts stress on the electronics in the unit.

How can you tell that the 89170-0E760 is defective?

A fault shows up as the airbag warning light in the instrument cluster lighting up permanently or intermittently, as an error message in the instrument cluster, as a lack of connection between the diagnostic tool and the control unit, and as a fault memory that cannot be cleared.

If one of these indications appears, the airbags and seatbelt pretensioners may not deploy in an emergency. You should therefore have the system checked promptly.

The warning light indicates the fault as soon as it is present. If you keep an eye on it, you will spot a defect early.

Which vehicles is the 89170-0E760 fitted in?

The control unit 89170-0E760 is fitted in these vehicles: Toyota Grand Highlander (from 2024).

The following list shows the vehicles to which this part number belongs.

• Toyota Grand Highlander (from 2024)

Compare the part number on the label of the removed unit with this page. This only confirms that it is the right unit. Also have the fault memory read out before you remove anything, because only the log shows whether the control unit is defective or whether a connector or a cable is the cause.

For the same vehicles, we also repair control units with the part numbers 89170-0E480, 89170-0E720, 89170-0E730, 89170-0E740.

How does the repair of the 89170-0E760 work?

First have the fault memory read out and attach the log, then disconnect the battery and only then remove the control unit. Next, create a repair order online and send the unit in well packed. At Airbag24, testing, repair and checking usually take 3–4 working days.

This order is mandatory for safety reasons. Only once the fault memory has been read and the battery has been disconnected may the control unit be removed.

Airbag24 tests the unit that has been sent in on the test bench and replaces defective components. Stored crash data is erased, followed by a function test. The unit is then sent 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 89170-0E760 get to Airbag24?

You send the unit in as a parcel or, for an extra charge, book a UPS collection. After the repair, Airbag24 returns it to you by UPS. Put the printed repair order in the parcel and pack the unit shock-proof.

A sturdy carton with enough padding protects the control unit during transit.