What is a Citroën Jumpy II airbag control unit?
The Citroën Jumpy II airbag control unit is the central safety unit that activates all occupant restraint systems, such as airbags and seatbelt pretensioners, in the event of an accident. It precisely monitors sensors, stores relevant crash data, and ensures the flawless functioning of the entire restraint system, essential for vehicle safety.
This safety-critical component collects and processes signals from acceleration and crash sensors in the vehicle at lightning speed. Within milliseconds, it decides whether to deploy the appropriate airbags (driver, front passenger, side) and seatbelt pretensioners.
The control unit is permanently integrated into the Citroën Jumpy II's electrical system and communicates with diagnostic devices via the OBD interface. Integrated error detection immediately activates the airbag warning light in the dashboard in the event of a defect, indicating that service is required.
Why is the Citroën Jumpy II airbag control unit defective?
A Citroën Jumpy II airbag control unit often fails because it stores crash data after an accident that hasn't been erased, or due to internal electronic errors such as power supply problems or corrupted memory. This then causes the airbag warning light to activate and can impair the functionality of the entire safety system.
Common causes include internal memory errors such as corrupted EEPROM data or software problems that can occur after a collision. Communication errors with airbag modules or a faulty internal self-test can also paralyze the control unit.
A failure of the internal power supply or coding errors in the control unit are other causes of defects. In such cases, a professional Citroën Jumpy II airbag control unit repair is essential to restore safety.
Common error codes for Citroën Jumpy II airbag control unit repair
When diagnosing a faulty Citroën Jumpy II airbag control unit, specific error codes will appear that indicate internal problems with the control unit itself, not the sensors. These codes help specialized workshops identify the exact cause of the failure and initiate the necessary steps for **Citroën Jumpy II airbag control unit repair**.
- B1000 → Control unit communication error → Internal communication fault in the airbag ECU
- B1001 → Internal memory error in the airbag control unit → Damaged data memory in the airbag ECU
- B1020 → Software or programming error in the control unit → Corrupt software or faulty programming
- B1030 → Airbag control unit coding error → Incorrect or missing coding of the airbag system
- B1100 → Internal Airbag ECU Power Supply Error → Problems with the internal power supply of the control unit
- B1200 → Error in the internal self-test (BIST) of the control unit → Failed internal function test of the airbag ECU
- B1210 → Faulty EEPROM data in the control unit → Damage to the non-volatile memory after a crash
- B1300 → Communication interruption with airbag modules (control unit specific) → Loss of connection to peripheral airbag components
What part numbers are available for Citroën Jumpy II airbag control unit repair?
For a successful Citroën Jumpy II airbag control unit repair, precise knowledge of the part numbers is essential, as they ensure compatibility with your vehicle. There are specific Citroën OEM numbers as well as Bosch supplier identification numbers that are verified for the Jumpy II model and must be observed when ordering or repairing.
The relevant part numbers for the airbag control unit in the Citroën Jumpy II have been verified multiple times and are crucial for selecting the correct replacement part. These numbers help identify the exact control unit and perform a correct replacement or targeted repair.
The following numbers are known as original parts (OEM) or supplier identification numbers and are taken into account in the **Citroën Jumpy II airbag control unit repair**:
- 1401407880 (Citroën Original/OEM): This number is fully verified for the Citroën Jumpy II and is listed by leading spare parts dealers.
- 0 285 010 556 (Bosch supplier/OEM ID): As a supplier identification number from Bosch, it is often found in combination with the Citroën OEM number on the control units and is also relevant for the Jumpy II.
- 00006546J1 (Citroën Original/OEM): This number is also a valid Citroën original number, although the exact compatibility with Jumpy II should be checked in each individual case to ensure absolute fit.