Airbag control unit with part number 89170-44010

What does the airbag control unit 89170-44010 do?

The airbag control unit 89170-44010 controls the restraint system (SRS) in Toyota. It queries the crash sensors, decides in an impact within a fraction of a second whether airbags and seatbelt pretensioners are triggered, and keeps the entire system under observation. After an accident, it stores crash data and locks itself.

If the electronics detect a fault, they create an entry in the fault memory. The airbag warning light in the instrument cluster then shows you that the system needs attention.

Why does the control unit 89170-44010 fail?

The most common cause is a crash data entry from an accident, even if no airbag was triggered. A normal diagnostic tool cannot remove it. Otherwise, aged components, cold solder joints, moisture at the plugs and voltage spikes come into question for 89170-44010.

• Ageing electronic components
• Cold solder joints
• Moisture and corrosion at plug connections
• Voltage spikes, for example with a weak battery or a jump start

A crash data entry does not mean that the unit is broken. Whether any of the other causes applies is only shown by the examination.

How can you tell that the 89170-44010 is defective?

The airbag warning light stays on permanently or intermittently, an error message appears in the instrument cluster, the diagnostic tool finds no connection to the control unit 89170-44010, or the fault memory cannot be cleared. In an emergency, the airbags and seatbelt pretensioners may then not trigger.

The light remains the clearest sign that something is wrong in the restraint system. A warning of this kind must be checked. Restarting the engine does not remove a stored fault by itself.

Which vehicles is the 89170-44010 fitted in?

The control unit 89170-44010 is fitted in these vehicles: Toyota Picnic XM10 (1996-2001).

The vehicles recorded under this part number are listed here.

• Toyota Picnic XM10 (1996-2001)

Comparing the part number on the label of your removed unit with this page only confirms that you have the matching unit. Have the fault memory read out beforehand, because only its contents show whether the control unit itself is defective or whether a plug or cable is causing the fault.

How does the repair of the 89170-44010 work?

You have the fault memory read out first and attach the log. Then disconnect the battery and remove the control unit. Online, you then create a repair order and pack the unit carefully for sending. Processing at Airbag24 usually takes 3–4 working days for testing, repairing and checking.

At Airbag24, the unit is checked, defective components are repaired, the crash data is erased and the function is tested. Afterwards, your 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 89170-44010 get to Airbag24?

You can send the unit 89170-44010 by parcel or have UPS collect it for an extra charge. After the repair, it is returned by UPS.

You pack the printed repair order along with the unit, and the control unit goes into the box shock-proof.