Airbag control unit with part number GK2E 57 K30 A

What does the airbag control unit GK2E 57 K30 A do?

The control unit GK2E 57 K30 A controls the restraint system (SRS) of Mazda. It continuously checks the signals from the crash sensors, decides within a few milliseconds in the event of an accident which airbags and seatbelt pretensioners are triggered, and reports faults to the airbag warning light. After an accident, it stores crash data and locks itself.

The sensor evaluation runs throughout every journey, so that the system can react without delay in an emergency. The unit works closely with the warning display in the instrument cluster.

Why does the control unit GK2E 57 K30 A fail?

The most common cause with the GK2E 57 K30 A is crash data stored after an accident, even if no airbag has deployed. On this control unit, deleting the crash data is often not possible; if you would like it deleted, get in touch with Airbag24 briefly before sending the unit in. Other causes are aged components, cold solder joints, moisture and corrosion, and voltage spikes.

Airbag24 then checks the part number before the unit is sent in.

• Aged electronic components whose function declines over time.
• Cold solder joints on the circuit board.
• Moisture and corrosion on plug connections.
• Voltage spikes, for example from a weak battery or when connecting jump leads.

How can you tell that the GK2E 57 K30 A is defective?

A fault on the GK2E 57 K30 A is recognised by the airbag warning light in the instrument cluster staying on permanently or intermittently. It is accompanied by a fault message in the instrument cluster, a lack of connection between the diagnostic tool and the control unit, and a fault memory that cannot be cleared. In an emergency, the airbags and seatbelt pretensioners may then fail to deploy.

Such a finding should therefore be checked promptly, because the light shows the fault as soon as it is detected.

Which vehicles is the GK2E 57 K30 A fitted in?

The control unit GK2E 57 K30 A is fitted in these vehicles: Mazda Mazda6 GG (2002-2005) and GG Facelift (2005-2007).

This list shows the assignment to the models:

• Mazda Mazda6 GG (2002-2005)
• Mazda Mazda6 GG Facelift (2005-2007)

Comparing the part number on the label of the removed unit with this page only confirms that it is the right unit. Whether there is a fault in the control unit or a connector or cable is the cause is only clarified by the fault memory once it has been read out. Have it read out before removing the unit.

For the same vehicles, we also repair control units with the part numbers 3326245, 5WK43763, 5WK43764, GJ6A57K30A, GS3L-57-K30, GSYL57K30.

How does the repair of the GK2E 57 K30 A work?

First have the fault memory of the GK2E 57 K30 A read out and enclose the log. Then disconnect the battery, remove the control unit and create a repair order online. Afterwards, send the unit in, well packed.

Airbag24 checks the unit on the test bench, repairs defective components and carries out a function test. Processing at Airbag24 usually takes 3–4 working days. If you would like the crash data deleted, get in touch with Airbag24 briefly before sending the unit in.

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 GK2E 57 K30 A get to Airbag24?

You send the control unit GK2E 57 K30 A in as a parcel, or book a UPS collection for an extra charge. After the repair, Airbag24 returns it by UPS. Put the printed repair order into the parcel and pack the unit shockproof.

With the order in the box, the shipment stays clearly assigned to your case.