Airbag control unit with part number 89170-0P030

What does the airbag control unit 89170-0P030 do?

The airbag control unit 89170-0P030 controls the restraint system (SRS) in vehicles of Toyota. It evaluates the crash sensors, determines in a crash within split seconds which airbags and seatbelt pretensioners are triggered, and monitors the system continuously. Detected faults are shown via the airbag warning light.

The unit works in the background throughout every journey. It compares the measured values of the connected components with the expected values.

After an accident, it stores crash data and locks itself. The lock is only lifted by a repair.

Why does the control unit 89170-0P030 fail?

Crash data from an accident is the most common cause, even if no airbag has deployed, and a normal diagnostic tool cannot erase it. Other factors include aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

Stored crash data arises because the unit records every impact it registers. This also applies when little is visible from the outside. An ordinary diagnostic tool does not remove these entries.

The electronics themselves age over time. Solder joints on the circuit board can become cold, and moisture or corrosion at the plug connections impairs the contact.

Voltage spikes in the vehicle electrical system, for example with a weak battery or a jump start, also put strain on the unit.

How can you tell that the 89170-0P030 is defective?

Signs include an airbag warning light in the instrument cluster that stays on permanently or intermittently, a fault message in the instrument cluster, a diagnostic tool with no connection to the control unit, and a fault memory that cannot be cleared. In an emergency, the airbags and seatbelt pretensioners may then fail to deploy.

These points help you recognise a fault:

• Airbag warning light in the instrument cluster permanently on
• Airbag warning light on intermittently
• Fault message in the instrument cluster
• Diagnostic tool cannot establish a connection
• Fault memory cannot be cleared

If any of these signs appear, have the system checked promptly.

Which vehicles is the 89170-0P030 fitted in?

The airbag control unit 89170-0P030 is fitted in these vehicles: Toyota RAV4 XA30 (2006-2009) and XA30 Facelift (2009-2013).

The following vehicles are assigned to this part number:

• Toyota RAV4 XA30 (2006-2009)
• Toyota RAV4 XA30 Facelift (2009-2013)

Compare the part number on the label of the removed unit with this page. This only confirms that it is the correct unit. Whether the control unit itself is defective or a connector or cable is the cause can only be shown by the fault memory log read out beforehand.

For the same vehicles, we also repair control units with the part numbers 150300-8850, 89170-0R022, 89170-0R140, 89170-42201, 89170-42210, 89170-42420.

How does the repair of the 89170-0P030 work?

Have the fault memory read out and attach the log. Then disconnect the battery and remove the unit. Next, create a repair order online and send in the well-packed unit. At Airbag24, processing usually takes 3–4 working days.

At Airbag24, the unit is examined on the test bench and defective components are repaired. Airbag24 erases the stored crash data during the repair, followed by a functional test.

The unit is then returned to you. The order of removal is to be observed for safety reasons.

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 89170-0P030 get to Airbag24?

You send the unit in as a parcel or book a UPS collection for an extra charge, and after the repair Airbag24 returns it via UPS.

The printed repair order goes into the parcel. Pack the unit shock-proof so that it arrives safely.