What is a Citroën C1 Airscape II airbag control unit?
The Citroën C1 Airscape II airbag control unit is your vehicle's central safety unit, precisely activating all occupant restraint systems, such as airbags and seatbelt pretensioners, in the event of an accident. It continuously monitors relevant sensors and stores important crash data, ensuring the proper functioning of all airbag modules for your safety.
This essential module forms the heart of the passive safety system in the Citroën C1 Airscape II. It is responsible for reacting to an impact within milliseconds and providing the best possible protection for occupants.
The control unit collects data from impact sensors and decides which airbags need to be deployed and with what intensity. A malfunction can cause the airbag warning light to remain illuminated and the system to be deactivated, requiring immediate Citroën C1 Airscape II airbag control unit repair.
Why is the Citroën C1 Airscape II airbag control unit defective?
A Citroën C1 Airscape II airbag control unit is often defective because it stores irreversible crash data after an accident, which can disable the system and cause the airbag warning light to permanently illuminate. Internal electronic errors or overvoltage can also cause failure, requiring specialized diagnostics and a Citroën C1 Airscape II airbag control unit repair.
The most common cause of a defect is the storage of crash data after an impact, even in minor accidents without airbag deployment. This data prevents the system from being reset and requires the crash memory to be erased.
In addition to crash data, aging processes, moisture, or sporadic errors in the internal electronics can also lead to failure. In such cases, the airbag warning light illuminates, indicating a system error and requiring a professional Citroën C1 Airscape II airbag control unit repair.
Common error codes for Citroën C1 Airscape II airbag control unit repair
When diagnosing a defective Citroën C1 Airscape II airbag control unit, two primary error codes occur: B1000, which indicates an internal control unit fault, and B1801, which indicates an open circuit in the steering wheel clock spring. Both require specific measures to restore functionality.
Reading the error log is the first step toward accurate diagnostics. The identified error codes provide information about the nature of the problem and are crucial for a successful Citroën C1 Airscape II airbag control unit repair.
Only control unit-related error codes are listed here, as other codes often affect sensors or belt pretensioners. The airbag control unit for the Citroën C1 Airscape II primarily reports internal system malfunctions and failures.
- B1000 → Control unit defective → Internal error of the airbag ECU, often caused by non-erasable crash data.
- B1801 → Driver level 1 airbag ignition module open circuit → Open circuit or defect in the steering wheel clock spring.
What part numbers are available for the Citroën C1 Airscape II airbag control unit repair?
Specific OEM and supplier part numbers are crucial for Citroën C1 Airscape II airbag control unit repairs. The primary Citroën part number is 89170-0H130. Validated Bosch/TRW supplier parts are B0 008 661 80, B0 011 045 80, and B000866180. These parts identify the exact airbag module for your vehicle.
Precise identification of the control unit using the part number is crucial for a successful Citroën C1 Airscape II airbag control unit repair. Only compatible modules can function correctly and ensure full safety.
To ensure compatibility with your Citroën C1 Airscape II (second generation), make sure the part number of your faulty control unit matches one of the numbers listed here. Older C1 models use different, incompatible numbers.
- 89170-0H130 (Citroën original OEM)
- B0 008 661 80 (Bosch/TRW OEM supplier)
- B0 011 045 80 (Bosch/TRW OEM supplier)
- B000866180 (Bosch/TRW supplier alternative number)