Airbag control unit with part number 89170-33260

What does the airbag control unit 89170-33260 do?

The airbag control unit 89170-33260 acts as the central unit for the restraint system (SRS) of Toyota. It processes the signals from the crash sensors, decides within milliseconds in a crash which airbags and seatbelt pretensioners are triggered, and reports faults via the airbag warning light.

The electronics work without delay here, because triggering has only a few milliseconds available. At the same time, the control unit checks the system in the background, even when no accident is taking place.

After an accident, it stores crash data and locks itself. More on this state is found in the following sections.

Why does the control unit 89170-33260 fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed. A normal diagnostic tool cannot erase them. Other causes are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

Crash data are not a defect in the classic sense, but a record of the event. They cannot be removed with an ordinary reading tool, and the fault memory remains.

The other causes lie in the electronics or at their connections. Components age, solder joints can turn cold, and moisture and corrosion attack the contacts. Voltage spikes, for example from a weak battery or a jump start, also put the circuit under strain.

How can you tell that the 89170-33260 is defective?

The airbag warning light in the instrument cluster lights up on the 89170-33260 permanently or intermittently, and an error message appears in the instrument cluster. In addition, the diagnostic tool cannot reach the control unit, and the fault memory cannot be cleared.

These signs mean that airbags and seatbelt pretensioners may not deploy in an emergency. The warning light is the signal the control unit gives itself, and it should not be ignored.

Which vehicles is the 89170-33260 fitted in?

The control unit 89170-33260 is fitted in these vehicles: Toyota Camry XV30 Facelift (2004-2006) and XV30 (2001-2004).

The vehicles known to us for this unit, at a glance:

• Toyota Camry XV30 Facelift (2004-2006)
• Toyota Camry XV30 (2001-2004)

On the one hand, compare the part number on the label of the removed unit with this page. This only ensures that it is the right unit. On the other hand, have the fault memory read out beforehand. Only this result shows whether the control unit itself is defective or a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 89170-33430, 89170-33470, 89170-33530.

How does the repair of the 89170-33260 work?

First you read out the fault memory and enclose the log. Then you disconnect the battery and only then remove the control unit 89170-33260. Next you create a repair order online and send the unit in well packed.

Airbag24 checks the unit on the test bench, repairs defective components, erases stored crash data and carries out a function test. The unit is then returned to you.

Processing at Airbag24 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 89170-33260 get to Airbag24?

You send the control unit 89170-33260 as a parcel, or you have it collected by UPS for an extra charge. After the repair, Airbag24 returns the unit by UPS.

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