Airbag control unit with part number 89170-33560

What does the airbag control unit 89170-33560 do?

In the restraint system (SRS) of Toyota and Lexus, the airbag control unit 89170-33560 takes the central role. It reads the crash sensors and decides within milliseconds in a crash which airbags and seatbelt pretensioners to trigger. After an accident it stores crash data and locks itself.

In addition, it monitors the system permanently and reports faults to the airbag warning light in the instrument cluster. The display therefore stays constantly in the driver's view.

The control unit itself works in the background, so its activity hardly stands out in everyday driving.

Why does the control unit 89170-33560 fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed; a normal diagnostic tool cannot erase it. Other possible causes include ageing electronics, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes.

The crash data remains in the memory after the accident, even if nothing can be seen from the outside.

Ageing electronics, cold solder joints and moisture are among the causes that can only be checked on the hardware. Voltage spikes arise, for example, from a weak battery or from a jump start, and they also put strain on the unit.

How can you tell that the 89170-33560 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, and a fault message appears. The diagnostic tool cannot connect to the control unit, and the fault memory cannot be cleared.

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

In an emergency, airbags and seatbelt pretensioners may not be able to trigger if the control unit is faulty. These signs should therefore be taken seriously, even if the car is still being driven.

Which vehicles is the 89170-33560 fitted in?

The 89170-33560 is fitted in these vehicles: Toyota Camry XV40 (2006-2011); Lexus ES GSV40 Facelift (2009-2012) and GSV40 (2006-2009).

The vehicles are listed below:

• Toyota Camry XV40 (2006-2011)
• Lexus ES GSV40 Facelift (2009-2012)
• Lexus ES GSV40 (2006-2009)

On the one hand, comparing the part number on the label of the removed unit with this page helps you identify the correct unit. On the other hand, have the fault memory read out beforehand, because only this result shows whether the control unit is defective or whether a plug or a cable is the cause.

For the same vehicles, we also repair control units with the part numbers 150300-3243, 89170-06A40, 89170-33570, 89170-33571, 89170-33580, 89170-33660.

How does the repair of the 89170-33560 work?

First have the fault memory read out and attach the log, then disconnect the battery and only then remove the control unit. Then create a repair order online and send in the well-packed unit. At Airbag24 it is checked on the test bench, defective components are repaired, the crash data is erased and a function test is run; this usually takes 3–4 working days.

Afterwards your own unit is sent back 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 89170-33560 get to Airbag24?

The unit reaches Airbag24 as a parcel or via a UPS collection for an extra charge. The return after the repair also runs via UPS.

Pack the unit so that it is shock-resistant and enclose the printed repair order.