What is a Citroën SpaceTourer I airbag control unit?
The Citroën SpaceTourer I airbag control unit is the central electronic module of the passive safety system, which precisely controls the deployment of airbags and seatbelt pretensioners in the event of an accident. It processes signals from crash sensors, stores relevant collision data, and plays a key role in protecting vehicle occupants.
This module continuously monitors the status of all connected safety systems. Proper functioning is essential to provide the best possible protection for occupants in the event of a collision and to meet legal safety standards.
It acts as the brain of the restraint system and integrates into the vehicle network to coordinate other safety functions.
Why is the Citroën SpaceTourer I airbag control unit defective?
A Citroën SpaceTourer I airbag control unit can fail for a variety of reasons, often after an accident, as it stores crash data and blocks activation if deployed. Electrical problems such as overvoltage, short circuits, or moisture damage can also cause failure, requiring immediate repair or replacement.
After an accident, the control unit registers the deployment of the airbags and seatbelt pretensioners. This data is permanently stored and often requires a professional crash data reset or repair of the airbag control unit before it can be fully functional again.
Aging, material fatigue of electronic components, or external influences such as extreme temperature fluctuations can also cause a failure. A defective control unit can cause the airbag warning light in the instrument cluster to remain permanently illuminated, indicating that a service call is necessary.
Common error codes for Citroën SpaceTourer I airbag control unit repair
Diagnosing a faulty Citroën SpaceTourer I airbag control unit often requires reading specific error codes that indicate internal problems or malfunctions in connected components. General codes like B0091 indicate internal module problems, while B0020 may indicate sensor issues that affect the overall system.
It is advisable to use an OBD-II scanner or specialized diagnostic tool to determine the exact trouble codes for your Citroën SpaceTourer I model and part numbers 98 039 168 80 and 1681055580. This is crucial for a precise diagnosis and successful repair.
- B0091: Control Module Issues → Internal problem in the airbag control unit → Software error, hardware defect or malfunction of the internal components.
- B0020: Side Impact Sensor Malfunction → Malfunction of a side impact sensor → Defective sensor, broken cable or communication error between sensor and control unit.
What part numbers are available for the Citroën SpaceTourer I airbag control unit repair?
After extensive research, two specific OEM part numbers are known to be 100% verified for the Citroën SpaceTourer I airbag control unit repair. These original part numbers, 98 039 168 80 and 1681055580, come directly from Citroën/Peugeot and ensure the compatibility and functionality of the control unit in your vehicle.
It is extremely important to check the part number against the specific vehicle data and vehicle identification number (VIN) before purchasing or repairing a part. Airbag control units are often programmed specifically for each vehicle and cannot be easily swapped between models.
- 98 039 168 80: Original OEM Citroën / Peugeot
- 1681055580: Original OEM Citroën / Peugeot / Opel
What are the features and technical specifications of the Citroën SpaceTourer I airbag control unit?
The Citroën SpaceTourer I airbag control unit receives signals from crash sensors, controls the precise deployment of up to 32 airbag ignition circuits and seatbelt pretensioners, and stores important collision data. It is connected to the 12-volt vehicle electrical system and can also automatically send a call for assistance in vehicles equipped with emergency call systems.
The control unit continuously monitors data from acceleration and pressure sensors to detect collisions within milliseconds. In the event of an impact, it activates the necessary restraint systems to minimize occupant injuries.
In addition to airbag control, it is integrated into the vehicle's overall safety network, works with driver assistance systems, and continuously monitors its own sensors and actuators to detect errors and display them via the instrument cluster. Bosch is a leading manufacturer of modular airbag control units.
Where is the Citroën SpaceTourer I airbag control unit located in the vehicle?
The Citroën SpaceTourer I airbag control unit is strategically located in the vehicle interior, usually under the driver or passenger seat or in the center tunnel area, to protect it from external influences and direct impacts. This location ensures reliable operation and fast data transmission to the sensors and actuators.
The installation position is chosen so that the control unit can react centrally to vehicle movement while being protected from moisture and damage. Several electrical connectors connect it to the crash sensors, the airbag ignition circuits, the vehicle's CAN bus, and the power supply.
It is securely and vibration-resistantly mounted using special brackets. Correct mechanical fixation is essential to ensure reliable function and safety in the event of an accident.
Which vehicles are compatible with this airbag control unit?
The airbag control unit is primarily compatible with the Citroën SpaceTourer I, specifically models built from approximately 2016 to at least 2020, and covers various trim levels and engine variants, including the 2.0 BlueHDi. It is also compatible with the Citroën C4 SpaceTourer series, which uses similar airbag systems.
Exact compatibility may vary depending on the specific vehicle equipment and the year of manufacture. Therefore, a precise comparison with the vehicle's chassis number is essential before repairing the Citroën SpaceTourer I airbag control unit.
These control units are specifically adapted to the vehicle architecture to ensure optimal functionality of the passive safety systems. Replacing them often requires recoding to the specific vehicle.
Important information about Citroën SpaceTourer I airbag control unit repair
After an accident, a professional crash data reset is often necessary for Citroën SpaceTourer I airbag control unit repair, as the control unit permanently stores the activation of the safety systems and subsequently blocks them. Control unit variants vary depending on the number of airbags and additional equipment in the vehicle, requiring careful selection of the replacement part.
The repair or replacement of an airbag control unit should only be performed by qualified personnel. Improper handling may result in safety system malfunctions or unintentional deployment.
Some control units offer extended interfaces for telematics systems used for automatic emergency call services. When purchasing a replacement part, it is important to ensure that all relevant functions of the original system are supported to avoid losing any safety features.