Airbag control unit with part number 89170-06340

What does the airbag control unit 89170-06340 do?

The airbag control unit 89170-06340 controls the restraint system (SRS) in Toyota. It continuously checks the sensors, decides within milliseconds in a crash on the triggering of airbags and seatbelt pretensioners, and indicates faults via the airbag warning light.

After an accident, the control unit stores crash data and locks itself. The crash sensors supply the measured values on which the unit bases its decision.

Because it coordinates the entire deployment, the function of the restraint system depends on this unit.

Why does the control unit 89170-06340 fail?

The control unit 89170-06340 most often fails because of crash data stored after an accident, even if no airbag has deployed. A standard diagnostic tool cannot erase these. Other causes include aged components, cold solder joints, moisture and corrosion, and voltage spikes.

The unit records the crash data as soon as it registers an accident. They are the most important single cause, but not the only one.

The following causes are possible:

• ageing electronic components
• cold solder joints on circuit boards
• moisture and corrosion on plug connections
• voltage spikes, for example from a weak battery or jump-starting

How can you tell that the 89170-06340 is defective?

A defect in the control unit 89170-06340 shows up in the airbag warning light in the instrument cluster, which lights up permanently or intermittently, and in an error message in the instrument cluster. In addition, no connection to the control unit is established once the diagnostic tool is connected.

In an emergency, airbags and seatbelt pretensioners may then fail to deploy because of such a defect. Have the system checked promptly.

The fault memory also cannot be cleared.

Which vehicles is the 89170-06340 fitted in?

Before removal, check from the list whether your car is one of them. The airbag control unit 89170-06340 is fitted in these vehicles: Toyota Camry XV40 (2006-2011).

Here are the vehicles for which Airbag24 holds this part number.

• Toyota Camry XV40 (2006-2011)

Comparing the label on the removed unit with this page confirms that you have the right unit. For the cause, however, the fault memory is decisive: have it read out before removal, and you will see whether the control unit is defective or a plug or cable is affected.

For the same vehicles, we also repair control units with the part numbers 89170-06A40.

How does the repair of the 89170-06340 work?

Processing at Airbag24 takes 3–4 working days. First have the fault memory of the control unit 89170-06340 read out and attach the log, then disconnect the battery, and only then remove the unit.

Next, create a repair order online and send in the well-packed unit. At the test bench, Airbag24 examines the unit, puts defective components right, erases the stored crash data and tests the function. After that, 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 89170-06340 get to Airbag24?

You can send the control unit 89170-06340 in as a parcel, or have it collected by UPS for an extra charge. Return shipping after the repair is also by UPS.

Put the printed repair order into the parcel, and pack the unit so that it is shockproof.