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Mazda2 DJ airbag control unit repair
DA6A 57K30 D · Label
- Label
- Connector
- Back
Mazda2 DJ airbag control unit repair at Airbag24
Airbag24 repairs defective airbag control units professionally and affordably. Both private customers and workshops can order without registration and benefit from fast processing, 2 years' statutory liability for defects and plug&play installation.
Airbag24 works with state-of-the-art diagnostic technology and specialised repair processes. Because defective control units often involve only individual components, a professional overhaul can be considerably cheaper than buying new.
Our advantages: no registration required, a direct online ordering process for B2B and B2C customers, express shipping and comprehensive quality testing. The repaired control unit works like a new part.
Notes
Mounting position
Repair type
Which repair matches your fault code?excluding VAT and shipping
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Your part number isn't listed? The list isn't complete – we can usually repair it anyway. Simply create a repair order, or ask us first.
Our estimated repair time for this product is about: 3–4 business days
Which repair matches your fault code?
Below your code you can see what needs to be done.
Your error code isn't listed? The list isn't complete – we can usually repair it anyway. Simply create a repair order, or ask us first.
Specifications
- Make
- Mazda
- Model
- Mazda Mazda2
- Series
- DJ (2014-2020)DJ 1st Facelift (2020-2023)DJ 2nd Facelift (2023-XXXX)

Shipping & repair from Germany
Airbag24 repairs your component in Berlin — usually within 3–4 working days.
Standard shipping within Germany is free; we normally return your part by UPS.
You pay for and insure the inbound shipment to us. On explicit request we ship by express — the extra cost is borne by the customer.
If you withdraw from the contract, you bear the cost of returning the item.
Google reviews
4.8What is a Mazda2 DJ airbag control unit?
The Mazda2 DJ airbag control unit is the central safety unit that activates all occupant restraint systems in the event of an accident. It monitors sensors, stores crash data, and ensures the proper functioning of all airbag modules in the vehicle by sending firing pulses to the airbags and seatbelt pretensioners.
This module, also known as the SAS unit, processes signals from front and side crash sensors. It is essential for the precise and timely activation of the restraint systems.
It returns with the customer's vehicle-specific data and is ready for operation immediately after reinstallation – no coding or programming needed.
Why is the Mazda2 DJ airbag control unit defective?
A Mazda2 DJ airbag control unit often malfunctions because it stores crash data after an accident and locks itself out for safety reasons, necessitating repair or a reset. Internal electronic errors, communication problems, or power supply issues can also cause failure, requiring professional Mazda2 DJ airbag control unit repair.
A common cause of failure is the storage of crash events, which locks the module until the data is professionally erased. This is an important security measure.
Electronic malfunctions or age-related wear and tear on components can also cause the control unit to no longer function properly. A diagnosis is essential in these cases.
Faults in the power supply or the vehicle data bus (CAN bus) can cause communication problems, which are indicated by the airbag warning light. In such cases, careful troubleshooting in the workshop is necessary.
Common error codes for Mazda2 DJ airbag control unit repair
In Mazda2 DJ airbag control unit repairs, specific error codes indicate problems with the control unit itself, not with sensors or airbags. They often signal communication problems, internal defects, or power supply issues to the module and are crucial for accurately diagnosing the failure.
- B1000 → Communication error in the airbag control unit → The module cannot communicate with other systems.
- 1 → SRS control unit error → This indicates an internal error in the airbag control unit.
- 2 → SRS control unit error (second control unit) → This error refers to a redundant or secondary airbag control unit, if present.
- 3 → Supply voltage / power supply → There is an insufficient or unstable electrical supply to the control unit.
- 91 → SRS warning light signal problem → This describes an error in the control or communication of the airbag warning light by the control unit.
What part numbers are available for the Mazda2 DJ airbag control unit repair?
For Mazda2 DJ airbag control unit repairs, the uniquely verified original Mazda OEM part number DA7H57K30A is the only reference. This number identifies the specific airbag control unit for the DJ model series and is the only one confirmed by independent sources for this purpose.
This part number has been confirmed several times as a genuine part for the Mazda2 DJ airbag control unit (SAS unit) from models around 2018/2019. An exact match ensures functionality.
No other alternative OEM or supplier numbers (e.g., from Bosch or Continental) for the Mazda2 DJ airbag controller were found that could be precisely matched. This underscores the relevance of the DA7H57K30A.
Before repairing or replacing a Mazda2 DJ airbag control unit, the part number should always be checked on the existing module to ensure compatibility and correct vehicle assignment.
Based on 246 reviews
What our customers say
„Ok.“
„Works like a charm!“
„Everything went perfectly, I can only recommend it.“
Automatically translated · Original: German
„From the first phone call, the order processing, to the shipping everything was done very quickly and professionally. Now I still have to send the repaired unit to the Swedish workshop and then hopefully the Honda can fi…“
Automatically translated · Original: German
„Airbag control unit Fiat 500 was broken. Hard to believe but they can really repair it! Recommendation!!“
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„Everything worked out great! Read out fault memory, sent it in, received offer and sent in the defective control unit. Got it back repaired after 3 days, price exactly as in the offer. It can't get any better 👍“
Automatically translated · Original: German
„Uncomplicated service. Fast and thorough. Can only recommend.“
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„All great👍“
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„All great, fast delivery. Thanks.“
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„100% satisfied. Everything handled very professionally and transparently. Only the return shipping took too long. This was however due to UPS and less to Aairbag24. Thank you very much“
Automatically translated · Original: German
„VAG airbag control unit with error B2000 00 reliably repaired. Price very high in comparison, but everything worked out. No exact protocol of what was carried out, probably just newly flashed“
Automatically translated · Original: German
„A great shop, even when there are sometimes problems. There are quick responses and very good help. I can only recommend the shop. Thank you very much“
Automatically translated · Original: German
„Ok.“





