What is a Citroën Berlingo III airbag control unit?
The Citroën Berlingo III airbag control unit is the central safety unit that activates all occupant restraint systems in the event of an accident. It precisely monitors crash sensors, evaluates signals within milliseconds, stores important crash data, and ensures the proper functioning of all connected airbag modules and seatbelt pretensioners in the vehicle.
This electronic control unit is essential for safety in the Citroën Berlingo III (type K9, from 2018). It is typically located in the center of the vehicle, protected under the center console or in the area of the manual transmission.
The control unit communicates with other vehicle systems via CAN bus and deploys the airbags (e.g., front and side airbags) as needed. After an accident, stored crash data must be erased and the unit recoded, which requires a specialized Citroën Berlingo III airbag control unit repair.
Why is the Citroën Berlingo III airbag control unit defective?
A Citroën Berlingo III airbag control unit can be defective because it has stored crash data after an accident that requires erasure, or due to age-related electronic faults. Short circuits, overvoltage, or moisture can also cause failure, making a professional Citroën Berlingo III airbag control unit repair essential.
Common causes of failure are internal hardware defects or software problems, which are indicated by an illuminated airbag warning light. A defective control unit compromises the overall safety of the vehicle, as it can no longer deploy the airbags in an emergency.
Diagnosing a faulty control unit requires specialized tools to identify the exact fault. A specialist workshop can determine whether a repair or replacement of the control unit is necessary to restore system functionality.
Common error codes for Citroën Berlingo III airbag control unit repair
During Citroën Berlingo III airbag control unit repairs, error codes are read out that indicate system malfunctions. Model-specific codes are available through manufacturer diagnostics, while general error codes such as B1000 or B1015 often indicate communication problems within the control unit or internal malfunctions. These require specialized diagnostics to resolve.
These general codes indicate problems with the airbag or SRS system and make precise troubleshooting essential. The use of professional diagnostic equipment is crucial.
- B1000 → Control unit communication error → Problems with the data transmission of the airbag ECU.
- B1015 → Faulty module → General malfunction in the SRS/ECU, may affect the control unit.
- B1139 → SRS module error → Indicates a problem within the airbag module.
- B1193 → Airbag module faulty → Another indication of a fault in the airbag control unit.
- B1206 → Airbag RCM Error → Error in the Restraint Control Module, often part of the airbag control unit.
- B1342 → SRS error → Supplemental Restraint System general error message.
- B1620 → SRS Error → Another generic trouble code for the airbag system.
- B1649 → Crash detected → Storage of an accident data record in the SRS/ECU, requires deletion.
What part numbers are available for Citroën Berlingo III airbag control unit repair?
For a correct Citroën Berlingo III airbag control unit repair, the exact OEM part number is crucial, as it ensures compatibility. Commonly used original part numbers include 9823741280, 9803916880, and 9638604280. These ensure technical compatibility with the vehicle model and its safety configurations.
The OEM numbers below are verified for Citroën Berlingo III airbag control units and are sourced from reliable sources. They assist with precise parts sourcing and successful Citroën Berlingo III airbag control unit repair.
- Part number: 9823741280 (Citroën Original OEM)
- Part number: 9803916880 (Citroën / PSA Original OEM)
- Part number: 9638604280 (Citroën Original OEM)
- Part number: 9653190980 (Citroën Original OEM)
- Part number: 9664706280 (Citroën BSM Original OEM)
Additional OEM reference numbers compatible with the Berlingo III BSM control unit include 9664706080, 9664706180, 9675878080, 9666700280, 9675878280, and 9807028680. The exact number can be found on your current control unit.