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Toyota Corolla E100 airbag control unit repair
89170-42D50 · Label
- Label
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Toyota Corolla E100 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
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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.
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Specifications
- Make
- Toyota
- Model
- Toyota Corolla
- Series
- E100 (1991-1995)E100 Facelift (1995-1997)

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 Corolla E100 airbag control unit?
The Toyota Corolla E100 airbag control unit, also known as the SRS control unit, is the central safety unit in your vehicle that precisely controls and activates all occupant restraint systems, such as airbags and seat belt pretensioners, in the event of an accident. It continuously monitors sensor data and stores important crash information, ensuring the proper functioning of your passive safety system.
This electronic control unit is designed for instant detection of impact events. It collects real-time data from various crash sensors to react instantly if necessary.
After an accident, the module stores internal crash data, making a reset or professional repair essential before the system can be fully functional again. Without this repair, it cannot guarantee that the safety components will be triggered again.
Why is the Toyota Corolla E100 airbag control unit defective or broken?
A Toyota Corolla E100 airbag control unit often becomes faulty or broken because it stores crash data after an accident, preventing further operation, or due to internal electronic errors such as memory defects or communication problems. These failures prevent the airbag system from functioning properly and indicate a need for repair to restore the safety of the vehicle's occupants.
Typical causes of failure include internal memory errors (e.g., EEPROM errors) that impair the device's functionality. A faulty data bus can also cause the control unit to no longer perform its functions.
Often, the airbag warning light on the dashboard is the first sign that the Toyota Corolla E100 airbag control unit is malfunctioning. In this case, a quick diagnosis is crucial to identify the problem and initiate the necessary Toyota Corolla E100 airbag control unit repair .
Common error codes for Toyota Corolla E100 airbag control unit repair
The targeted analysis of error codes is crucial for a successful Toyota Corolla E100 airbag control unit repair, as they precisely indicate problems within the control unit and enable a precise diagnosis. These specific codes help specialist workshops identify internal defects or communication problems without having to unnecessarily check other system components.
- B1000 → Control unit communication error → Cause: Disrupted communication with diagnostic device or other vehicle systems.
- B1003 → Memory error in the airbag control unit → Cause: Defect in the internal data memory of the control unit.
- B1004 → Internal control unit error → Cause: General hardware or software defect in the control unit.
- B1006 → Data bus communication error within the control unit → Cause: Malfunction of the internal data transmission of the control unit.
- B1012 → Error in the flash memory of the control unit → Cause: Damage or corruption of the flash memory.
- B1020 → Airbag control unit EEPROM error → Cause: Problem with the EEPROM memory, which contains important system data.
Which part numbers are suitable for the Toyota Corolla E100 airbag control unit repair?
For a correct Toyota Corolla E100 airbag control unit repair, it is essential to verify the exact OEM part numbers, as these are vehicle-specific and ensure the compatibility of the replacement or repair module. Using an incorrect part number may impair the functionality of the airbag system and poses a significant safety risk.
The following OEM part numbers are verified for the airbag control unit of the Toyota Corolla E100 (model year approximately 1991–1999):
- 89170-12160: Genuine Toyota OEM part, specifically confirmed for Corolla E100 (1996-1997).
- 89170-42D50: Genuine Toyota OEM part, also listed for Corolla E100 (1991-1999).
- 152100-4560: Often a supplier part number (probably Denso) that is functionally equivalent to 89170-42D50 for the Corolla E100.
It is crucial that the part number on your defective control unit matches one of the numbers listed above to ensure compatibility during the Toyota Corolla E100 airbag control unit repair. After repair, your control unit comes back with all its original vehicle-specific data intact – no VIN programming required. It is immediately ready for use.
The role of a professional workshop in Toyota Corolla E100 airbag control unit repair and diagnosis
Toyota Corolla E100 airbag control unit repair and diagnostics should only be performed by a qualified specialist workshop, as this is a safety-critical component whose improper handling can have serious consequences. Experts have the necessary specialized tools and knowledge to accurately read error codes, safely repair defective modules, and ensure correct reprogramming of the control unit.
A professional workshop can not only fix internal errors but also ensure that all crash data is properly erased after an accident. This is essential so that the system is fully functional again and can trigger again in an emergency.
The installation and removal of airbag control units requires special safety precautions and specialist knowledge. This is the only way to guarantee the proper functioning and safety of the occupant protection system after the control unit has been repaired or replaced.
Based on 241 reviews
What our customers say
„Ok.“
„Works like a charm!“
„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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„Problem solved :-)“
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„Everything went well“
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„Everything works great“
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„Ultra satisfied with this company. My computer was repaired quickly and works perfectly again! Communication is exemplary (emails, SMS...). Very serious company, thank you!“
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„Uncomplicated, fast, correct.“
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„Airbag control unit sent: the handling of it was immediate and very serious. The returned control unit was fitted without any problem and works perfectly. Very satisfied!“
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„Airbag control unit Fiat 500 was broken. Hard to believe but they can really repair it! Recommendation!!“
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 f…“
Automatically translated · Original: German
„Ok.“




