Airbag control unit with part number 89170-60470

What does the airbag control unit 89170-60470 do?

The airbag control unit 89170-60470 controls the restraint system (SRS) of Toyota: it reads out the crash sensors, determines within milliseconds in an accident which airbags and seatbelt pretensioners fire, and keeps the entire system in view. After an accident it stores crash data and locks itself.

Faults in the restraint system are shown by the unit via the airbag warning light, which sits in the instrument cluster.

Checking the system is part of the unit's ongoing work and does not run only when needed.

Why does the control unit 89170-60470 fail?

Stored crash data is the most frequent cause of the failure of control unit 89170-60470, even without a triggered airbag. A normal diagnostic tool cannot erase it. Aged components, cold solder joints, corrosion at plug connections and voltage spikes are also possible.

Crash data arises already in events where no seatbelt pretensioner and no airbag fired. The unit stores it anyway, and it remains in memory even when the vehicle is long back on the road.

Further causes at a glance:

• Electronics age, and components lose reliability over time.
• Solder joints can go cold.
• Moisture promotes corrosion on the plugs.
• Voltage spikes, for example with a weak battery or when connecting jump leads, stress the electronics.

How can you tell that the 89170-60470 is defective?

A defect on the 89170-60470 shows on the airbag warning light, a fault message in the instrument cluster, a missing contact to the diagnostic tool and a fault memory that cannot be cleared. The light thus reports the fault itself.

Typical signs are:

• The airbag warning light in the instrument cluster lights permanently or at times.
• A fault message on the airbag system appears in the instrument cluster.
• The diagnostic tool establishes no connection to the control unit.
• The fault memory cannot be cleared.

In an emergency, airbags and seatbelt pretensioners may then fail to deploy, so the warning must be taken seriously.

Which vehicles is the 89170-60470 fitted in?

The control unit 89170-60470 is fitted in these vehicles: Toyota Prado J150 1st Facelift (2013-2015), J150 2nd Facelift (2015-2018), J150 3rd Facelift (2018-2024) and J150 (2009-2013). The information applies to part number 89170-60470 only.

The models are listed individually here:

• Toyota Prado J150 1st Facelift (2013-2015)
• Toyota Prado J150 2nd Facelift (2015-2018)
• Toyota Prado J150 3rd Facelift (2018-2024)
• Toyota Prado J150 (2009-2013)

Comparing the part number on the label of the removed unit with this page only tells you about the right unit. Having the fault memory read out beforehand, by contrast, 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 150300-2965, 89170-60540, 89170-60630, 89170-60631.

How does the repair of the 89170-60470 work?

You first have the fault memory read out and enclose the log, then disconnect the battery. Then remove the control unit 89170-60470 and create a repair order online. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 checks the unit on the test bench, repairs defective components, clears the stored crash data and runs a function test. Afterwards your own, repaired unit 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 89170-60470 get to Airbag24?

You send the control unit 89170-60470 as a parcel or book a UPS collection for an extra charge. Airbag24 returns it by UPS after the repair.

Put the printed repair order into the parcel and pack the unit shock-proof.