Airbag control unit with part number 89170-0DE80

What does the airbag control unit 89170-0DE80 do?

In the vehicle from Toyota, the airbag control unit 89170-0DE80 is the switching centre of the SRS restraint system. It evaluates the signals from the crash sensors, decides within milliseconds in a collision which airbags and seatbelt pretensioners trigger, and monitors the system continuously. After an accident it stores crash data and locks itself.

The unit reports faults via the airbag warning light in the instrument cluster. In addition, it stores the fault so that it can be read out later.

In normal operation this control unit goes unnoticed. In an emergency, however, everything depends on the electronics working completely and correctly.

Why does the control unit 89170-0DE80 fail?

Stored crash data is the most common cause with the 89170-0DE80: it remains in the unit after an accident, even if no airbag has triggered, and a normal diagnostic tool cannot erase it. Aged components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes are also considered.

Airbag24 erases the crash data during the repair. The other causes concern electronics and connections in the vehicle that can age or corrode over time.

A weak battery or a jump start can create voltage spikes that strain the electronics. A damp or corroded plug connector can also cause faults, as can a cold solder joint.

How can you tell that the 89170-0DE80 is defective?

The airbag warning light in the instrument cluster stays lit permanently or intermittently, which indicates a detected fault on the 89170-0DE80. An error message appears in the instrument cluster, the diagnostic tool finds no connection to the control unit, and the fault memory cannot be cleared.

Lighting up shows that the system has registered a fault. This indication also applies if the vehicle otherwise behaves unremarkably.

As long as the fault exists, airbags and seatbelt pretensioners may not trigger in an emergency. Take the warning seriously.

Which vehicles is the 89170-0DE80 fitted in?

The control unit 89170-0DE80 is fitted in these vehicles: Toyota Yaris XP210 (from 2020).

The list comes from our assignment to this part number.

• Toyota Yaris XP210 (from 2020)

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

For the same vehicles, we also repair control units with the part numbers 89170-0DE20, 89170-0DE30, 89170-0DE40, 89170-0DE50, 89170-0DE60, 89170-0DE70.

How does the repair of the 89170-0DE80 work?

First have the fault memory of the 89170-0DE80 read out and enclose the log, then disconnect the battery and only then remove the unit. Afterwards create a repair order online and send in the well-packed unit. Processing at Airbag24 usually takes 3–4 working days.

At Airbag24 the unit is checked on the test bench, defective components are replaced, stored crash data is erased and a function test follows. Afterwards 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 89170-0DE80 get to Airbag24?

Either you send the control unit 89170-0DE80 as a parcel, or you book a UPS collection for an extra charge. The return after the repair is made by UPS.

Place the printed repair order in the parcel and pack the unit shock-proof.