Opel Agila A airbag control unit repair

What is an Opel Agila A airbag control unit?

The Opel Agila A airbag control unit repair is the central safety unit in your vehicle, which precisely activates all occupant restraint systems, such as airbags and seatbelt pretensioners, in the event of an accident. It continuously monitors all relevant sensors, stores important crash data, and ensures the proper functioning of the entire airbag system for your safety.

This module, often manufactured by Siemens, is crucial for passive occupant protection. It processes signals from crash and acceleration sensors to accurately assess the impact. After an accident, the crash data stored in this control unit must be reset at a workshop.

Why is the Opel Agila A airbag control unit defective?

The Opel Agila A airbag control unit often fails after an accident because irreversible crash data was stored after an accident, blocking its function, or due to age-related wear and tear or internal electronic faults. Overvoltage or short circuits can also lead to failure, causing the airbag warning light to remain permanently illuminated and necessitating repair.

A common cause is airbag deployment, which causes crash data to be stored and the control unit to lock. Even without an accident, the control unit can fail due to age or internal component failure. This is often indicated by a permanently illuminated airbag warning light in the instrument cluster of your Opel Agila A. A professional diagnosis is essential to identify the exact cause.

Common error codes for Opel Agila A airbag control unit repair

When repairing the Opel Agila A airbag control unit, specific error codes such as B1071, B1032, and B0055 are particularly relevant, as they directly indicate problems with the control unit or stored crash data. These codes require precise diagnosis and are crucial for a successful repair.

• B1071 → Airbag system faulty/control unit defective → Defective or failed airbag ECU, often with non-erasable crash data.
• B1032 → Airbag system faulty → General internal errors or communication problems in the airbag module.
• B0055 → Side airbag deployed (crash data saved) → Crash data saved after an accident requires a reset of the control unit.

These errors indicate that the airbag control unit itself is defective or requires a reset after an accident. Only the specific control unit codes are relevant for repair, not sensor codes.

What part numbers are available for the Opel Agila A airbag control unit repair?

For Opel Agila A airbag control unit repair, it is crucial to match the exact part number of the defective control unit, as only identical numbers guarantee full compatibility. The available OEM part numbers include models from Opel and Siemens, allowing for a precise repair or replacement.

• Opel OEM: 3870083E00, 38860-83E50
• Siemens OEM: 9211122, 5WK42899, 99800019LG7
• Siemens OEM: 38910-84E20-000, 38910-83E11-000, 5WK4 2897
• Siemens OEM (repair numbers): 38910-84E22-000, 9216734

These verified part numbers are relevant exclusively for the airbag control unit in the Opel Agila A (model years 2000–2007). Repair or replacement is only advisable if the serial numbers match to ensure the safe operation of the airbag system. A specialized workshop can perform the correct selection and installation.