Airbag control unit with part number 89170-47360

What does the airbag control unit 89170-47360 do?

The airbag control unit 89170-47360 coordinates the triggering of airbags and seatbelt pretensioners in Toyota. To do so, it evaluates the crash sensors and makes the decision within milliseconds in a crash. It also monitors the system and reports faults via the airbag warning light.

It works unobtrusively in the background and checks the system even when you are not driving.

If the vehicle has been involved in an accident, the unit stores crash data and locks itself. Only the repair lifts this lock.

Why does the control unit 89170-47360 fail?

The most common cause is crash data stored in the 89170-47360, even without a deployed airbag. Other causes include aged components, cold solder joints, moisture at plug connections and voltage spikes.

Normal diagnostic tools cannot remove this data; only the repair at Airbag24 does that.

Which cause applies to the particular unit is only shown by the test at Airbag24.

How can you tell that the 89170-47360 is defective?

A defect shows itself through the airbag warning light, through error messages in the instrument cluster and through the diagnostic tool finding no connection.

In an emergency, airbags and seatbelt pretensioners may fail to deploy. If you notice the warning, have the system checked promptly.

As soon as the system detects a fault, the warning light comes on. Only reading out the fault memory reveals what exactly is affected.

Which vehicles is the 89170-47360 fitted in?

The control unit 89170-47360 from Toyota is fitted in these vehicles: Toyota Prius II XW20 (2003-2009). If you only compare the model designation, you may assign the wrong unit, so the number on the unit is what counts.

The vehicles at a glance:

• Toyota Prius II XW20 (2003-2009)

Comparing the part number on the label confirms that you have removed the correct unit. The cause, however, is clarified by the fault memory, which you should have read out in advance, because a plug or a cable may just as well be responsible.

How does the repair of the 89170-47360 work?

It begins with reading out the fault memory, whose log you enclose. Then you disconnect the battery before removing the control unit 89170-47360. Finally, you create a repair order online and pack the unit well for sending.

At Airbag24, the unit is checked on the test bench, defective components are replaced, crash data is erased and a function test is carried out. Afterwards your own unit is sent back to you.

Checking, repairing and testing usually take 3–4 working days 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 89170-47360 get to Airbag24?

Either you send the control unit 89170-47360 as a parcel, or you have it collected by UPS for an extra charge. Airbag24 also returns it by UPS after the repair.

The printed repair order and a unit packed shockproof belong in the parcel.