Airbag control unit with part number 89170-42360

What does the airbag control unit 89170-42360 do?

In vehicles from Toyota, the airbag control unit 89170-42360 controls the restraint system (SRS). It evaluates the crash sensors and decides in an emergency which airbags and seatbelt pretensioners are triggered.

The unit also monitors the system during normal operation. It shows any irregularities via the airbag warning light in the instrument cluster.

If an accident occurs, the unit stores crash data and then blocks itself. Every proper inspection has to take this state into account.

Why does the control unit 89170-42360 fail?

The most common cause on the 89170-42360 is crash data that remains in the memory after an accident, even if no airbag has deployed. Other triggers are aged components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

Crash data that stays in the memory cannot be removed with a standard diagnostic tool. Airbag24 deletes it during the repair.

Ageing electronics, cold solder joints and moisture at the plugs also play a role. Voltage spikes in the vehicle electrical system can affect the unit as well. The exact cause is only determined by the examination at Airbag24.

How can you tell that the 89170-42360 is defective?

A fault in the 89170-42360 shows up through the airbag warning light, which stays on permanently or intermittently. Additional signs are an error message, a missing connection to the diagnostic tool, or a fault memory that cannot be cleared.

The airbag warning light in the instrument cluster is the clearest sign. If it stays on or keeps coming back, there is a fault that must be checked.

In an emergency, airbags and seatbelt pretensioners may not trigger in such a case. The warning light should therefore not be ignored.

Which vehicles is the 89170-42360 fitted in?

This control unit, 89170-42360, is fitted in these vehicles: Toyota RAV4 XA30 (2006-2009) and XA30 Facelift (2009-2013).

The list shows the vehicles recorded for this unit.

• Toyota RAV4 XA30 (2006-2009)
• Toyota RAV4 XA30 Facelift (2009-2013)

Comparing the part number on the label of the removed unit with this page confirms that you have the right unit. The comparison does not clarify the cause. For that, have the fault memory read out beforehand, as it shows whether the control unit itself is affected or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 150300-8850, 89170-0P010, 89170-0P020, 89170-0P030, 89170-0P040, 89170-0P050.

How does the repair of the 89170-42360 work?

First have the fault memory of the 89170-42360 read out and enclose the log. Then disconnect the battery, remove the control unit, create a repair order online and send it in well packed.

Airbag24 checks the unit on the test bench, repairs defective components, deletes stored crash data and carries out a function test. Processing at Airbag24 usually takes 3–4 working days.

Afterwards your own unit is returned 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 89170-42360 get to Airbag24?

You can send the control unit 89170-42360 as a parcel or have it collected by UPS for an extra charge. Airbag24 also returns it by UPS after the repair.

Enclose the printed repair order with the parcel, and pack the unit shock-proof.