What is a Skoda Octavia RS Mk4 airbag control unit?
The Skoda Octavia RS Mk4 airbag control unit is the central safety unit in vehicles built from approximately 2019 onwards, controlling the occupant protection system. It precisely monitors all crash sensors and, in the event of an accident, immediately activates the airbags and seatbelt pretensioners to ensure occupant safety.
This core component is essential for the proper functioning of the passive safety system. It processes signals from various sensors for quick and safe activation.
The control unit communicates via specific 2-3 pin connectors and is corrosion-resistant thanks to its design. An internal short-circuit bridge in the connector prevents accidental activation.
Why is the Skoda Octavia RS Mk4 airbag control unit defective?
The Skoda Octavia RS Mk4 airbag control unit can fail due to various internal or external factors that impair safe operation. Common causes include communication problems within the vehicle network, software errors, incorrect coding after a replacement, or the inability to erase crash data, necessitating repair.
Because the control unit continuously processes data, internal software errors or damaged modules can lead to failure. This often manifests itself in an illuminated airbag warning light and requires precise diagnosis.
A loss of communication with other control units or coding problems after a replacement can also paralyze the system. Especially after an accident, the crash data record is often impossible to delete, necessitating a special repair of the airbag control unit.
Common error codes for Skoda Octavia RS Mk4 airbag control unit repair
When diagnosing a faulty Skoda Octavia RS Mk4 airbag control unit, specific error codes will appear that point directly to the control unit's electronics or software. These codes help identify the exact cause of the malfunction and precisely perform the necessary repair or reprogramming to restore full functionality.
- B1000 → Control unit communication error → The airbag control unit does not establish communication or does not establish communication with other control units.
- B1040 → Software error in the airbag control unit → Problems with the software version stored in the control unit, e.g. inconsistencies or damaged modules.
- B1050 → Control unit coding error → Error in the coding of the airbag control unit, often required after a control unit replacement or software updates.
- B1160 → Memory error / Crash data cannot be erased → Crash data in the airbag control unit cannot be erased, which requires special repair or reset.
What part numbers are available for the Skoda Octavia RS Mk4 airbag control unit repair?
For the repair of the Skoda Octavia RS Mk4 airbag control unit, two official Skoda OEM part numbers are primarily verified: 1EA959655AB and 1EA959655EE. These are specifically confirmed for the Octavia IV (Mk4) from approximately 2019, including the RS model, and ensure the compatibility and functional reliability of the replacement part after repair.
Part numbers 1EA959655AB and 1EA959655EE are the only ones confirmed as original for the airbag control unit of the Skoda Octavia IV (Mk4), especially for the station wagon model with the 2.0 TDI engine. Other sources do not list exact matching numbers.
Currently, no other verified OEM part numbers from suppliers such as Bosch or Continental are available for this specific model. This prevents confusion and compatibility risks when purchasing parts for the airbag control unit repair.