Airbag control unit with part number 89170-33230

What does the airbag control unit 89170-33230 do?

The airbag control unit 89170-33230 is the central control unit of the restraint system (SRS) of Toyota. It evaluates the crash sensors, decides in an accident within milliseconds on the triggering of airbags and seatbelt pretensioners, and monitors the system permanently.

If it detects a fault, it reports it via the airbag warning light. After an accident it stores crash data and locks itself.

Why does the control unit 89170-33230 fail?

Stored crash data from an earlier accident is the most common cause for the 89170-33230, even if no airbag was deployed. An ordinary diagnostic tool cannot remove it. Other causes are aged components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes.

The memory retains the crash data, and the vehicle can then continue to drive perfectly. The fault therefore remains visible until the unit comes in for repair.

The other factors act over a longer period. Electronic components age, solder joints can stay cold, and moisture or corrosion attack the plug connectors. Voltage spikes, for example from a weak battery or a jump start, also put strain on the electronics.

How can you tell that the 89170-33230 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently. A fault message in the instrument cluster is added, and the diagnostic tool gets no connection to the control unit 89170-33230. Airbags and seatbelt pretensioners may fail to deploy in an emergency.

The light checks the system after the ignition is switched on. If it does not go out, or comes back later, that points to a fault that should be checked.

A fault memory that cannot be cleared is also one of the indications. On its own, however, it does not yet answer the question of which part is affected.

Which vehicles is the 89170-33230 fitted in?

The control unit 89170-33230 is fitted in these vehicles: Toyota Camry XV30 Facelift (2004-2006) and XV30 (2001-2004). Only the log of the read-out fault memory shows whether it is defective.

The list of affected vehicles:

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

Compare the part number on the label of the removed unit with this page. This ensures that it is the right unit. Also have the fault memory read out in advance, because this finding shows whether the control unit is defective or a connector 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 89170-33230 work?

Have the fault memory read out first and attach the log, then disconnect the battery and only then remove the control unit 89170-33230. Next, create a repair order online and pack the unit well. At Airbag24 processing usually takes 3–4 working days.

This sequence must be observed for safety reasons. Removal only takes place after the battery has been disconnected.

Airbag24 examines the unit on the test bench, renews defective components, deletes the stored crash data and carries out a function test. The unit then returns 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 89170-33230 get to Airbag24?

Either you hand in the unit as a parcel, or you book a UPS collection for an extra charge. After the repair you receive the control unit 89170-33230 back by UPS.

Include the printed repair order with the parcel, and pack the unit shock-resistant so that dispatch goes without damage.