Airbag control unit with part number 89170-06730

What does the airbag control unit 89170-06730 do?

The airbag control unit 89170-06730 is the control unit of the restraint system (SRS) in Toyota. It checks the signals from the crash sensors, selects the correct airbags and seatbelt pretensioners within milliseconds in the event of an accident, and continuously monitors itself. It reports a fault via the airbag warning light.

Triggering is a matter of milliseconds, so the unit keeps calculating in the background at all times. The driver does not intervene.

After an accident, the unit creates crash data and locks itself. The repair ends this lock.

Why does the control unit 89170-06730 fail?

The most common cause with 89170-06730 is stored crash data, even if no airbag was triggered in an accident. Other causes include aged electronic components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes, for example from a weak battery or a jump start.

Crash data cannot be erased with a normal diagnostic tool. Airbag24 erases it during the repair.

The other causes concern the electronics themselves and their connections. Aged components and cold solder joints can cause malfunctions, while moisture, corrosion and voltage spikes put strain on the connections.

How can you tell that the 89170-06730 is defective?

A defect on the 89170-06730 shows up as the airbag warning light in the instrument cluster, which lights up permanently or intermittently. An error message also appears in the instrument cluster, the diagnostic tool cannot connect to the control unit, and the fault memory cannot be cleared.

In an emergency, airbags and seatbelt pretensioners may therefore fail to trigger. The warning light is a direct signal from the system and must not be ignored.

Whether the cause lies in the control unit only becomes clear once the fault memory has been read out, not from the warning light alone.

Which vehicles is the 89170-06730 fitted in?

Before removal, it is worth comparing with the vehicle list. The airbag control unit 89170-06730 is fitted in these vehicles: Toyota Camry XV50 (2011-2019).

The vehicles in which this unit was installed are listed here:

• Toyota Camry XV50 (2011-2019)

You carry out the label comparison with the part number on the removed unit; it only confirms that you have the right unit. You should also have the fault memory read out, because only the log 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 150800-2310, 89170-06670, 89170-06671, 89170-06770.

How does the repair of the 89170-06730 work?

For the 89170-06730, first have the fault memory read out and attach the log to the unit. Then disconnect the battery and only after that remove the control unit. Finally, create a repair order online and pack the unit carefully.

At Airbag24, the unit is checked on the test bench, defective components are replaced, crash data is erased and a function test follows. Inspection, repair and testing usually take 3–4 working days at Airbag24.

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 89170-06730 get to Airbag24?

You send the control unit 89170-06730 in as a package, or you book a UPS collection for an extra charge. Airbag24 sends it back by UPS after the repair.

The package must contain the printed repair order, and the unit must be packed shockproof.