Airbag control unit with part number 89170-33810

What does the airbag control unit 89170-33810 do?

The airbag control unit 89170-33810 forms the control centre of the restraint system for Toyota. It evaluates the crash sensors, determines in an accident whether airbags and seatbelt pretensioners are triggered, and monitors the system as a whole. After an accident it stores crash data and locks itself.

Because very little time remains in an accident, the evaluation works without delay. The unit shows faults in the system via the airbag warning light in the instrument cluster, so that you can respond.

Why does the control unit 89170-33810 fail?

The most common cause is crash data stored after an accident, even if no airbag was triggered. A normal diagnostic tool cannot erase this data, but Airbag24 does erase it during repair. Aged components, cold solder joints, and moisture and corrosion at plug connections are further causes.

The data remains stored in the unit after an accident, even if the airbags were left untouched. A conventional diagnostic tool cannot remove it.

Electronic components also age, solder joints can go cold, and moisture or corrosion affects plug connections. Voltage spikes, for example from a weak battery or jump start, can likewise harm the electronics.

How can you tell that the 89170-33810 is defective?

A defect shows in the airbag warning light, which lights up permanently or intermittently, and in an error message in the instrument cluster. A diagnostic tool without connection to the control unit or a fault memory that cannot be cleared are also signs. Airbags and seatbelt pretensioners may then possibly not deploy in an emergency.

These signs may occur individually or together:

• airbag warning light on permanently
• airbag warning light on intermittently
• error message in the instrument cluster
• no connection between the diagnostic tool and the control unit
• fault memory cannot be cleared

As long as the fault exists, airbags and seatbelt pretensioners may possibly not deploy in an emergency. Therefore have the indication checked.

Which vehicles is the 89170-33810 fitted in?

The control unit 89170-33810 is fitted in these vehicles: Toyota Camry XV50 (2011-2019). The assignment is based on the part number; a check on the unit itself remains unaffected by it.

The assignment to this part number looks as follows:

• Toyota Camry XV50 (2011-2019)

Compare the part number on the label of the removed unit with this page, so that you are sure you have the right unit. Have the fault memory read out beforehand, because only this result 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 150800-2310, 89170-06670, 89170-06671, 89170-06770.

How does the repair of the 89170-33810 work?

First have the fault memory read out and attach the log to the unit; then disconnect the battery and only then remove the control unit. Then create a repair order online and pack the unit well. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 examines the unit on the test bench, repairs defective components, erases stored crash data and carries out a function test before your own unit is returned. The 3–4 working days cover only checking, repairing and testing.

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 89170-33810 get to Airbag24?

You send the unit to Airbag24 as a parcel, or you book a UPS collection for an extra charge. The return after repair is by UPS.

A unit packed shock-resistantly, with the printed repair order enclosed, is ready for dispatch.