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Toyota Aygo AB40 airbag control unit repair
Toyota Aygo AB40 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.
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Repair type
Which repair matches your fault code?incl. VAT plus shipping
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Matching part numbers
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
- Toyota
- Model
- Toyota Aygo
- Series
- AB40 (2014-2018)AB40 Facelift (2018-2021)

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 Toyota Aygo AB40 airbag control unit?
The Toyota Aygo AB40 airbag control unit is the central electronic control unit responsible for the safety of vehicle occupants in the event of an accident. It continuously monitors sensors, stores relevant crash data, and precisely controls the deployment of all occupant restraint systems to ensure optimal protection.
This highly specialized component is crucial for the vehicle's passive safety and ensures that airbags and seat belt pretensioners are activated when needed.
It is tailored to the specific requirements of the second generation of the Toyota Aygo (model code AB40) from model year 2014.
Why is the Toyota Aygo AB40 airbag control unit defective?
A Toyota Aygo AB40 airbag control unit is often defective because it has internal memory errors, stores indelible crash data, or suffers from power supply problems. These failures cause the airbag warning light to stay permanently illuminated and the system to no longer function.
Common causes include the storage of crash data after an accident that cannot be deleted, thus blocking the control unit.
Internal defects in the EEPROM memory or software errors can also cause the airbag control unit to be broken and a Toyota Aygo AB40 airbag control unit repair may be necessary.
Power supply issues, such as undervoltage or overvoltage, can also impair the control unit's function and lead to failure. A professional Toyota Aygo AB40 airbag control unit repair service can resolve these issues.
Common error codes for Toyota Aygo AB40 airbag control unit repair
If a Toyota Aygo AB40 airbag control unit repair is necessary, specific error codes indicate problems with the control unit itself, rather than with sensors or other components. These codes help diagnose the exact defect in the airbag control unit and are crucial for a precise repair.
- B1000 → Control unit communication error → A general communication problem or a defect in the airbag control unit prevents proper operation.
- B1100 → Internal memory error in the control unit → Crash data cannot be erased, which is typical after an accident and requires a reset.
- B1200 → Power supply to the control unit faulty → Problems caused by undervoltage, overvoltage or damaged cables affect the power supply.
- B1300 → Software error or malfunction in the airbag control unit → Internal software defects activate the airbag warning light permanently.
- B1400 → EEPROM error → A memory error in the internal EEPROM of the control unit is hindering its function.
- B1500 → Communication error between airbag control unit and other control units → Faults in the CAN bus or data traffic prevent correct communication.
What part numbers are available for the Toyota Aygo AB40 airbag control unit repair?
For the airbag control unit repair of the Toyota Aygo AB40, these part numbers are registered with this repair product: the manufacturer numbers 89170-0H190 and 89170-0H220, plus the supplier number TRW 337644-101-95160. These numbers belong to airbag control units of this model and help to match your unit.
The part number is printed on the label of the airbag control unit and can be stated in the repair order.
Based on 246 reviews
What our customers say
„Ok.“
„Works like a charm!“
„Everything went perfectly, I can only recommend it.“
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„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…“
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„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 👍“
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„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“
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„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“
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„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“
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„Ok.“




