Airbag control unit with part number GEA2-57K30

What does the airbag control unit GEA2-57K30 do?

The airbag control unit GEA2-57K30 is responsible for triggering the airbags and seatbelt pretensioners in the SRS system of Mazda. It records through the crash sensors what happens in an accident and decides within milliseconds whether to trigger.

It checks the function of the system continuously and reports faults via the airbag warning light in the instrument cluster.

After an accident, it stores crash data and locks itself.

Why does the control unit GEA2-57K30 fail?

The most common cause is stored crash data from an accident in which no airbag deployed. Other possible causes are aged components, cold solder joints, moisture and corrosion, and voltage spikes from the battery or jump-starting.

Crash data cannot be removed with an ordinary diagnostic tool.

Electronics wear out over time, especially at plug connections. Moisture leaves corrosion behind that degrades the contacts, and cold solder joints can cause intermittent contact faults.

How can you tell that the GEA2-57K30 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, and a fault message appears in the instrument cluster. In addition, the diagnostic tool has no connection to the control unit, and the fault memory cannot be cleared.

If the vehicle shows any of these signs, the airbags and seatbelt pretensioners may fail to deploy in an emergency. Please have the condition examined promptly.

Which vehicles is the GEA2-57K30 fitted in?

Your vehicle documents show whether your model is listed. The control unit GEA2-57K30 is fitted in these vehicles: Mazda Mazda6 GH (2008-2010) and GH Facelift (2010-2012).

The list below shows the vehicles that Airbag24 has assigned to this part number.

• Mazda Mazda6 GH (2008-2010)
• Mazda Mazda6 GH Facelift (2010-2012)

First compare the part number on the label of the removed unit with this page, and then you will know you have the right unit in front of you. Have the fault memory read out beforehand. This result shows whether the control unit is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 5WK43763, GDK457K30, GMC857K30A, GS1D-57-K30A, GS1D-57-K30B, GS1D-57K30.

How does the repair of the GEA2-57K30 work?

First have the fault memory read out and attach the log. Then disconnect the battery and only then remove the control unit, before you create a repair order online. Airbag24 checks, repairs and tests the unit within 3–4 working days as a rule.

Please follow this order for safety reasons. Pack the unit carefully afterwards for shipping.

On the test bench, the control unit is examined, defective components are replaced, and stored crash data is deleted. A function test checks the result, and then your own unit is returned to you.

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 GEA2-57K30 get to Airbag24?

You send the unit as a parcel or book a UPS collection for an extra charge. The return after the repair is made by UPS.

Place the printed repair order in the parcel, and pack the control unit shockproof.