Airbag control unit with part number 89170-B1180

What does the airbag control unit 89170-B1180 do?

The airbag control unit 89170-B1180 controls the restraint system (SRS) in Daihatsu. It evaluates signals from the crash sensors, determines the triggering of airbags and seatbelt pretensioners in an accident within milliseconds, and monitors the system continuously.

In the event of a fault the airbag warning light comes on. After an accident the unit stores crash data and locks itself afterwards.

Why does the control unit 89170-B1180 fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed. A normal diagnostic tool cannot erase it. In addition, aged components, cold solder joints, moisture and corrosion at plugs, and voltage spikes, for example from a weak battery or jump start, come into consideration.

The fact that the vehicle runs without problems after the accident does not mean that no crash data is stored. The data remain in the unit.

The other causes only become apparent during the examination on the test bench.

How can you tell that the 89170-B1180 is defective?

The airbag warning light in the instrument cluster lights up continuously or intermittently. In addition 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.

The warning light is the most important signal the unit itself emits. If it lights up, have the fault checked promptly.

A defective control unit can mean that airbags and seatbelt pretensioners may not trigger in an emergency.

Which vehicles is the 89170-B1180 fitted in?

The 89170-B1180 is fitted in these vehicles: Daihatsu Boon M600 (2010-2016); Daihatsu Sirion M600 (from 2011).

The overview below shows the models that are assigned to this part number:

• Daihatsu Boon M600 (2010-2016)
• Daihatsu Sirion M600 (from 2011)

Compare the part number on the label of the removed unit with this page, and then you know that you have the matching unit. Nevertheless, have the fault memory read out beforehand, because only this 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 89170-87410, 89170-B1030, 89170-B2040, 89170-B2060.

How does the repair of the 89170-B1180 work?

The fault memory is read out first and the log is enclosed. Then the battery is disconnected and the control unit removed. Then you create a repair order online and send in the well-packed unit.

Airbag24 examines the unit on the test bench, replaces defective components, erases the stored crash data and carries out a function test. Processing 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-B1180 get to Airbag24?

You send the 89170-B1180 as a parcel, or book a UPS collection for an extra charge. After the repair Airbag24 sends it back to you by UPS.

Enclose the printed repair order in the parcel; the unit must be packed shockproof.