Airbag control unit with part number 89170-30560

What does the airbag control unit 89170-30560 do?

The control unit coordinates the airbags and seatbelt pretensioners in the Lexus vehicle. It monitors the crash sensors, decides within a fraction of a second in an accident whether to trigger, and keeps the system under constant supervision. If it detects a fault, the airbag warning light comes on.

Monitoring continues even when the engine is switched off.

After an accident, the unit stores crash data, and it then remains locked.

Why does the control unit 89170-30560 fail?

Stored crash data from an accident is the most common cause, even if no airbag has deployed. A normal diagnostic tool cannot erase it; Airbag24 erases it during the repair. Other possible causes include ageing electronics, cold solder joints, moisture and corrosion on connectors, and voltage spikes from a weak battery or jump-starting.

Crash data is created by the event itself, so on its own it does not prove a defect in the unit.

The other causes act over a longer period. Ageing, moisture and corrosion attack contacts and solder joints, and voltage fluctuations put strain on the circuitry.

How can you tell that the 89170-30560 is defective?

A fault shows up as the airbag warning light in the instrument cluster staying on permanently or intermittently, or as an error message in the instrument cluster. A diagnostic tool that cannot connect to the control unit is also a sign.

The main signs at a glance:

• Airbag warning light staying on permanently or intermittently
• Error message in the instrument cluster
• No connection between diagnostic tool and control unit
• Fault memory that cannot be cleared

Do not treat this lightly: in an emergency, the airbags and seatbelt pretensioners may fail to deploy.

Which vehicles is the 89170-30560 fitted in?

This list is based on the data on file, and equipment or year of manufacture can make a difference. The 89170-30560 is fitted in these vehicles: Lexus GS S190 Facelift (2009-2011) and S190 (2005-2009).

Below you will find the vehicles for which we have this number on record.

• Lexus GS S190 Facelift (2009-2011)
• Lexus GS S190 (2005-2009)

Compare the part number on the label of the removed unit with this page, and you will know you have the right unit. Have the fault memory read out beforehand, because only that shows whether the control unit is defective or whether connectors and cables are to blame.

For the same vehicles, we also repair control units with the part numbers 89170-30B30, 8917030630.

How does the repair of the 89170-30560 work?

First you read out the fault memory and attach the log. Then you disconnect the battery, remove the control unit and create a repair order online.

Send the well-packed unit in. Airbag24 tests it on the test bench, repairs defective components, erases stored crash data and carries out a function test.

Airbag24 usually needs 3–4 working days for this work. After that, your own unit is returned.

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 89170-30560 get to Airbag24?

The control unit travels to Airbag24 as a parcel, or alternatively UPS collects it for an extra charge. The return journey after the repair is also made by UPS.

Put the printed repair order into the parcel and pack the unit shockproof.