Description
Airbag Control Unit for Citroën C2, C3 and C3 Pluriel.
This Airbag Control Unit (SRS Control Module) is designed for Citroën C2, Citroën C3 and Citroën C3 Pluriel models and is commonly referenced by part numbers 9658316580, 654583, 654584 and 654691. The unit monitors crash sensors, manages airbag and seatbelt pretensioner deployment logic and stores SRS fault codes. Ideal for professional workshops and experienced DIY mechanics who search by part number, this control module restores proper Supplemental Restraint System functionality after electrical faults or collisions.
Technical Information
- Manufacturer: Stellantis / Citroën / Peugeot
- Model: Citroën C2; Citroën C3; Citroën C3 Pluriel
- Product Codes: 9658316580; 654583
- Additional Numbers: 654584; 654691
Installation Recommendations
- Safety First: Disconnect the vehicle battery (negative terminal) and wait at least 10 minutes to allow SRS capacitors to discharge before touching airbag system components.
- Follow Service Manual: Remove trim and affected airbags (driver/passenger/side) as required by the factory procedure to access the control unit. Always follow manufacturer wiring and connector release methods to avoid damage.
- Connector Integrity: Inspect wiring harnesses, ground points and connector pins for corrosion or bent contacts. Ensure connectors fully engage and locking tabs click into place.
- Post-Installation: Reconnect battery, then use a compatible diagnostic tool to read and clear SRS fault codes. Verify system status and perform any required calibration or system checks per the service manual.
- Handling: Avoid static discharge and do not subject the unit to impact or high-pressure cleaning. Handle the module with care and mount with original fasteners and correct torque where specified.
Common Failure Causes
- Collision Damage: The most frequent cause is impact from an accident; the unit may register deployment events or internal faults after a crash.
- Moisture And Corrosion: Water ingress or corroded connectors can create intermittent faults or complete failure of communication with sensors.
- Electrical Surges And Poor Grounding: Battery voltage spikes, jump-starts done incorrectly or bad ground connections can damage internal electronics.
- Wiring And Connector Faults: Chafed wiring, damaged pins or poor repairs in the SRS circuit will often trigger faults that appear to be module-related.
- Age And Environmental Stress: While control units are designed to last the vehicle lifetime, prolonged exposure to heat, vibration or contamination can eventually cause malfunction.
Why Choose This Unit: Using the correct SRS control module with matching part numbers ensures compatibility with airbag deployment logic and fault reporting. Searchable by the typical part numbers listed above, this unit helps professionals and competent DIYers restore safety system functionality after diagnostics have identified the control module as faulty.
