What is an Opel Zafira A airbag control unit?
The Opel Zafira A airbag control unit is the central electronic module that monitors the entire occupant restraint system and controls the targeted deployment of airbags and seatbelt pretensioners in the event of an accident. It processes sensor data, stores important crash information, and signals faults via the airbag warning light to ensure vehicle safety.
This safety-relevant component is typically installed in the center of the vehicle, often under the center console. It communicates with other systems via the vehicle data bus and is essential for fault diagnosis. The control unit is crucial for the passive safety of the Opel Zafira A from 1998 to 2005.
Why is the Opel Zafira A airbag control unit defective?
An Opel Zafira A airbag control unit often becomes defective because crash data is irretrievably stored after an accident, internal software errors occur, or communication with the vehicle bus is disrupted, which results in the activation of the airbag warning light and makes repair necessary.
Common causes include the storage of crash data that cannot be erased after an impact, resulting in the system becoming blocked. Internal memory errors (EEPROM/Flash) or hardware defects can also lead to failure. A power supply failure or disrupted bus communication also lead to malfunctions in the control unit. The airbag warning light then remains permanently active, and the errors cannot be reset.
Common error codes for Opel Zafira A airbag control unit repair
When repairing the Opel Zafira A airbag control unit, specific error codes indicate problems with the module itself, rather than with sensors or seatbelt pretensioners. These codes, often irreversible, require a precise diagnosis and repair of the control unit to restore vehicle safety.
- B1000 → Control unit communication error → Error in the connection to the diagnostic device or vehicle bus.
- 81 → Control unit error / communication problem → Problems with memory access or the internal connection of the module.
- 82 → Side airbag control unit error → Internal defect, often related to the impact sensor, but localized in the control unit.
- 89 → Internal control unit error → Damage to the EEPROM or flash memory in the control unit.
- Uxxxx → Manufacturer-specific communication errors → General bus errors or unspecified control unit problems.
What part numbers are available for the Opel Zafira A airbag control unit repair?
For Opel Zafira A airbag control unit repair, several OEM part numbers are relevant, ensuring compatibility with the 1998-2005 model. These numbers identify the exact control unit, which is essential for the correct functioning of the safety system and requires professional repair.
- 13188856 → Opel → Original airbag control unit for Zafira A, frequently listed.
- 09229303BG → Opel → Original part number, especially for Zafira A in repair offers.
- 24416704DM → Opel → Officially listed as OEM number for Zafira A (T98).
- 13 261 676 → Continental / Siemens (OEM in Opel) → Original equipment manufacturer airbag module for Opel Zafira.