Airbag control unit with part number DR61-57K30-A

What does the airbag control unit DR61-57K30-A do?

The airbag control unit DR61-57K30-A coordinates the restraint system (SRS) of Mazda. It evaluates the signals from the crash sensors, decides in an emergency within milliseconds on airbags and seatbelt pretensioners, and monitors the system permanently. It shows detected faults via the airbag warning light.

After an accident it stores crash data and is locked afterwards. The repair lifts this lock.

The control unit is wired to sensors and triggers and works unnoticed in the background.

Why does the control unit DR61-57K30-A fail?

Stored crash data is the most common cause after an accident, even when no airbag has fired. A normal diagnostic tool cannot erase it. Other possible causes are ageing electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example from a weak battery or a jump-start.

The crash data stays in the unit even if the vehicle continues to be used afterwards.

The other causes can develop gradually. Electronics age, solder joints can go cold, and moisture attacks the contacts.

How can you tell that the DR61-57K30-A is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, and a fault message appears in the instrument cluster. A diagnostic tool gets no connection to the control unit, and the fault memory cannot be cleared. In these cases, airbags and seatbelt pretensioners may not fire in an emergency.

The warning light is the most important signal. If it stays on permanently or returns, have the system checked.

The fault message in the instrument cluster confirms the malfunction additionally.

Which vehicles is the DR61-57K30-A fitted in?

The airbag control unit DR61-57K30-A is fitted in these vehicles: Mazda Mazda2 DE (2007-2010) and DE Facelift (2010-2014).

These vehicles are recorded in our data for this part number.

• Mazda Mazda2 DE (2007-2010)
• Mazda Mazda2 DE Facelift (2010-2014)

Compare the part number on the label of the removed unit with this page. This confirms that you have the right unit. Have the fault memory read out beforehand, because only 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 2S6T-14B056-EN, DF73-57K30B, GC1M-57-K30.

How does the repair of the DR61-57K30-A work?

First read out the fault memory and enclose the log. Then disconnect the battery and only then remove the control unit. Processing at Airbag24 takes 3–4 working days. Create the repair order online and send the unit in well packed.

Airbag24 checks the unit on the test bench, repairs defective components, erases stored crash data and carries out a function test. Afterwards the unit goes back to you.

This time limit applies solely to checking, repairing and testing at Airbag24.

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 DR61-57K30-A get to Airbag24?

Either you send the unit as a parcel, or you book a UPS collection for an extra charge. After the repair it comes back to you from Airbag24 by UPS.

The printed repair order goes into the parcel, and you pack the unit shock-proof.