Airbag control unit with part number 89170-06320

What does the airbag control unit 89170-06320 do?

The airbag control unit 89170-06320 is the central control unit of the restraint system (SRS) of Toyota. It evaluates the signals from the crash sensors, decides in an accident within milliseconds which airbags and seatbelt pretensioners to trigger, and monitors the system continuously. It reports faults via the airbag warning light.

While driving, the unit checks whether all connected components work correctly. After an accident it stores crash data and locks itself.

Why does the control unit 89170-06320 fail?

Stored crash data after an accident is the most common cause, even if no airbag has triggered; a normal diagnostic tool cannot erase it. Further causes are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

The crash data remains in the unit's memory regardless of how the vehicle continues to drive. That is why fault finding checks it first.

The other causes at a glance:

• aged electronic components
• cold solder joints
• moisture and corrosion at plug connections
• voltage spikes, for example from a weak battery or a jump start

How can you tell that the 89170-06320 is defective?

A defect shows up as the airbag warning light lighting up permanently or intermittently, and as error messages in the instrument cluster. A diagnostic tool without a connection to the control unit, or a fault memory that cannot be cleared, also counts as a sign.

• Airbag warning light lights up permanently or intermittently
• Error message in the instrument cluster
• Diagnostic tool receives no connection to the control unit
• Fault memory cannot be cleared

In an emergency, airbags and seatbelt pretensioners may then not trigger. If you notice one of these signs, have the system checked promptly.

Which vehicles is the 89170-06320 fitted in?

The control unit 89170-06320 is fitted in these vehicles: Toyota Camry XV40 (2006-2011). Comparing the details in this section tells you whether your car is affected.

The assignment to this part number is shown in the following list.

• Toyota Camry XV40 (2006-2011)

Compare the part number on the label of the removed unit with this page. That only ensures that you have the right unit. Have the fault memory read out first, because only that result shows whether the control unit is defective or a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 89170-06A40.

How does the repair of the 89170-06320 work?

Have the fault memory read out first and attach the log, then disconnect the battery. Only then remove the control unit, create a repair order online and send the unit in well packed. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 checks the unit on the test bench, replaces defective components, deletes stored crash data and runs a function test.

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 89170-06320 get to Airbag24?

You send the unit as a parcel or book a UPS collection for an extra charge. After the repair Airbag24 sends it back to you by UPS.

Put the printed repair order into the parcel and pack the device shock-resistant.