Airbag control unit with part number 89170-0D160

What does the airbag control unit 89170-0D160 do?

The airbag control unit 89170-0D160 is the central control unit of the restraint system (SRS) for Toyota. It evaluates the signals from the crash sensors, decides on airbags and seatbelt pretensioners in an accident, and monitors the system permanently.

The unit reports faults via the airbag warning light in the instrument cluster. The fault is also recorded in the fault memory.

After an accident it stores crash data and locks itself.

Why does the control unit 89170-0D160 fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed. A usual diagnostic tool cannot erase it, so the fault remains.

Aged electronic components and cold solder joints are further possible causes. Moisture and corrosion at plug connections worsen the contact, while voltage spikes, for example from a weak battery or a jump start, stress the electronics.

The test on the test bench determines which cause applies.

How can you tell that the 89170-0D160 is defective?

Typical signs are an airbag warning light in the instrument cluster that lights up permanently or intermittently, an error message in the instrument cluster, and no connection to the diagnostic tool. A fault memory that cannot be cleared confirms the suspicion.

It is important not to dismiss the warning light as a minor matter. It shows that the system has detected a fault.

In an emergency, airbags and seatbelt pretensioners may then fail to deploy.

Which vehicles is the 89170-0D160 fitted in?

The control unit 89170-0D160 is fitted in these vehicles: Toyota Yaris XP90 (2005-2009) and XP90 Facelift (2009-2011).

The vehicles in detail:

• Toyota Yaris XP90 (2005-2009)
• Toyota Yaris XP90 Facelift (2009-2011)

Have the fault memory read out before removal. That way you know whether the control unit is defective or whether a connector or a cable is causing the fault. Then compare the part number on the label with this page.

For the same vehicles, we also repair control units with the part numbers 212986-105, 212986-110, 220749-101, 89170-0D170, 89170-0D230, 89170-0D440.

How does the repair of the 89170-0D160 work?

First read out the fault memory, remove the control unit and create a repair order online. After that, checking, repairing and testing at Airbag24 usually take 3–4 working days.

The log of the fault memory goes in the parcel. Disconnect the battery, then remove the unit 89170-0D160 and pack it well.

Airbag24 checks the unit, replaces defective components, erases crash data and tests the function. Your own unit then goes 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 89170-0D160 get to Airbag24?

Either you send the unit as a parcel, or you book a UPS collection for an extra charge. After the repair, Airbag24 sends it back to you by UPS.

Put the printed repair order in the parcel. Pack the control unit 89170-0D160 shock-resistant.