Airbag control unit with part number 30773354

What does the airbag control unit 30773354 do?

The airbag control unit 30773354 is the central control unit of the restraint system (SRS) in the Aston Martin. It evaluates the crash sensors, decides within milliseconds in an accident which airbags and seatbelt pretensioners to trigger, and monitors the system continuously. It reports faults via the airbag warning light.

The control unit checks the wiring and firing circuits continuously. Faults found are stored in the fault memory, which a diagnostic tool can read.

In an accident the unit stores crash data and locks itself.

Why does the control unit 30773354 fail?

Stored crash data is the most common cause, even if no airbag was triggered in the accident. The 30773354 can also be affected by aged components, cold solder joints, moisture on plug connections and voltage spikes.

A standard diagnostic tool cannot remove this crash data. Airbag24 clears it during the repair.

Corrosion on plugs and weak batteries that cause voltage spikes also belong here. The test determines which cause applies.

How can you tell that the 30773354 is defective?

The airbag warning light in the instrument cluster shows the defect by lighting up constantly or intermittently. In addition, an error message may appear in the instrument cluster, there may be no connection to the diagnostic tool, or the fault memory cannot be cleared.

In an actual accident, airbags and seatbelt pretensioners may then not trigger. If you notice these signs, take the fault seriously.

Which vehicles is the 30773354 fitted in?

The 30773354 is fitted in these vehicles: Aston Martin Vantage VH (2005-2017).

You will find the list of vehicles for this part number here.

• Aston Martin Vantage VH (2005-2017)

Matching the part number on the label with this page confirms that you have the correct unit. Have the fault memory read out beforehand, because only this log shows whether the control unit itself is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 30795181, 31295109, CG43-37-11330, DD33-14C246-AA.

How does the repair of the 30773354 work?

First you have the fault memory read out and attach the log. Then you disconnect the battery and only then remove the 30773354. Then you create the repair order online and send the unit in, well packed.

Airbag24 checks the unit on the test bench, replaces defective components, clears stored crash data and runs a functional test. Your own unit is then returned to you. Processing at Airbag24 usually takes 3–4 working days. 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 30773354 get to Airbag24?

You send the 30773354 as a parcel to Airbag24, or you book a UPS collection for an extra charge. Airbag24 then returns the unit to you by UPS.

Put the printed repair order in the parcel, and pack the unit shock-proof.