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.

Airbag unit (SRS control unit) for Citroën C2, C3 and C3 Pluriel. Original PSA part, ideal replacement in case of “Airbag fault” or damage to the original unit. You can use it during repairs after an accident and when solving an internal malfunction of the control unit.

Key benefits
– Original PSA unit – correct communication with the car’s electronics and connected sensors/pretensioners
– Suitable for Citroën C2, C3 and C3 Pluriel cars according to the listed OEM numbers
– Solving frequent problems: SRS internal error, unit not communicating, airbag error message on the instrument panel

Compatibility by OEM numbers
– Main unit number: 9647794280
– Spare/service PSA numbers: 654581, 654582, 6546H2, 654689
Note: PSA uses multiple numbers for identical or interchangeable revisions. Always compare the unit label to your original part before purchasing.

Car models
– Citroën C2 (JM) – according to equipment and year of manufacture
– Citroën C3 (FC/FN) – according to equipment and year of manufacture
– Citroën C3 Pluriel (HB) – according to equipment and year of manufacture
Recommendation: verify compatibility by VIN or exact match of OEM numbers on the label is most reliable.

Technical information
– Part Type: Airbag Control Unit (SRS/ACU)
– Power supply: 12 V on-board network
– Communication: depending on the car version (PSA architecture; management of airbags, pretensioners and impact sensors)
– Connectors: multi-pin sockets (number and color may vary by revision)
– Location in the vehicle: usually center tunnel/console under the dashboard (may vary by model and year of manufacture)
– Body material: die-cast aluminum with electronic module

Condition and origin
– Used original part from a PSA car. Condition corresponds to use – refer to photos and numbers on label.
– The offer includes the airbag control unit itself without mounting material.

Assembly, coding and commissioning
– Disconnect the negative battery terminal and wait at least 10 minutes (discharging the SRS capacitors) before mounting.
– The unit may require deletion of “crash data” and coding for a specific vehicle (equipment configuration: number of airbags, belt pretensioners, etc.).
– Recommended tools: PSA diagnostics DiagBox/Lexia/PP2000.
– Entrust installation and work on the SRS to an expert – it is a safety system.

How to choose correctly
– The most reliable is the matching of the complete part number (e.g. 9647794280) and possibly one of the PSA service numbers (654581, 654582, 6546H2, 654689).
– Also compare the physical design, location and number of connectors, year of manufacture and equipment of the car.

Warning
– The SRS safety system is critical for crew protection. Improper assembly or an incorrectly coded unit can cause the airbags to malfunction. Installation should be performed by a qualified person.

Search Keywords (SEO)
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This SRS/Airbag control unit is a direct-fit module used on small Stellantis platform vehicles such as the Citroën C2, Citroën C3 and C3 Pluriel. It is commonly searched for by part numbers and OE codes—making it easy to find when you work from an error code or parts list. Designed for mechanics and experienced DIYers, this listing highlights compatibility, typical failure modes and practical installation guidance to help you complete the repair efficiently.

Key Features & Benefits

• OE Reference Numbers Included: Facilitates fast matching to vehicle parts lists and service documentation.
• Direct Replacement: Fits factory wiring and connectors on listed Citroën models—no modifications required when matching OE codes.
• Essential For Vehicle Safety Systems: Controls deployment decisions for airbags and stores crash event data (event memory), ensuring the SRS system operates as intended.
• Suitable For Professional Workshops And Competent DIYers: Useful for SRS fault diagnostics and post-collision module replacement.

Technical Information

• Manufacturer: Stellantis (Citroën/Peugeot Group)
• Model: Citroën C2, Citroën C3, Citroën C3 Pluriel
• Product Codes: 9647794180
• Additional Numbers: 654583, 654584, 654691

How The Unit Works

The airbag control unit (SRS control module) monitors inputs from crash sensors, seat occupancy sensors and belt pretensioners. When the module detects a collision above its deployment thresholds, it triggers the appropriate restraint devices. It also stores diagnostic trouble codes (DTCs) and crash event data that must be addressed after any deployment or water/electrical fault.

Common Reasons For Failure

• Collision/Deployment: The module is often replaced after airbag deployment—once triggered it usually requires replacement.
• Water Ingress or Corrosion: Moisture entering the unit or connector can cause fault codes and loss of functionality.
• Electrical Faults Or Short Circuits: Wiring damage, shorts or improper jump-starting can damage the control electronics.
• Connector Or Wiring Damage: Poor connections, pin corrosion, or chafed wiring cause intermittent faults or permanent failure.

Replacement And Installation Recommendations

• Safety First: Always disconnect the negative battery terminal and wait at least 10–15 minutes before working on SRS components to reduce the risk of accidental deployment. Use appropriate personal protective equipment.
• Locate The Module: On Citroën C2/C3 models the SRS unit is typically mounted under trim panels—commonly beneath the center console or in the passenger footwell/under-seat area depending on year and trim. Refer to vehicle repair manual for exact location.
• Handle With Care: Avoid static discharge and mechanical shock to the unit. Do not probe live connectors with the battery connected.
• Diagnostics Required: After replacement, clear SRS fault codes and verify system status with a suitable diagnostic tool (factory-level or compatible PSA/Diagbox tools). Confirm no pending crash-related faults remain before returning the vehicle to service.
• Connector Check: Inspect wiring, pins and connectors for corrosion or damage and repair as needed to prevent repeat failures.

Who Should Install

Installation is recommended for qualified automotive technicians or experienced DIYers comfortable with vehicle electrical systems and SRS safety procedures. Proper diagnostic equipment is required to verify functionality and clear codes.

Why Buy This Unit

Purchasing a correct OE-matching airbag control unit ensures proper integration with restraint systems and simplifies fault diagnosis. Using the correct part numbers reduces installation time and helps restore the vehicle’s safety systems to factory operation.

This airbag control unit (SRS ECU) is a direct-fit safety module suitable for Citroën C2, C3 and C3 Pluriel vehicles. Designed for professional mechanics and experienced DIYers, this unit monitors crash sensors, controls airbag deployment and works with seatbelt pretensioners to protect occupants in a collision. Commonly searched by part numbers 9656889080, 654583, 654584 and 654691, the module is a key safety component for Stellantis vehicles and is often replaced after impact or when SRS fault codes are present.

Technical Information

• Manufacturer: Stellantis / Citroën / Peugeot
• Model: Citroën C2, Citroën C3, Citroën C3 Pluriel
• Product Codes: 9656889080
• Additional Numbers: 654583, 654584, 654691

Function And Benefits

The unit continuously evaluates inputs from accelerometers, impact sensors and seatbelt switches. When a collision threshold is exceeded, it triggers airbag deployment and seatbelt pretensioners. Replacing a faulty or deployed control unit restores correct SRS function and clears persistent airbag warning lights when properly installed and coded. For workshops, having the correct part numbers on hand speeds diagnosis and repair.

Installation Recommendations

• Disconnect the negative battery terminal and wait at least 10 minutes to allow the SRS capacitors to discharge before starting work.
• Locate the unit—typically mounted under the dashboard or center console—remove surrounding trim carefully to avoid damaging connectors and harnesses.
• Unplug connectors using the locking tabs, remove mounting bolts, and replace with the new unit. Ensure all connectors are fully engaged and locking clips are intact.
• After mechanical installation, perform diagnostic checks with a suitable tool (e.g., manufacturer-level scanner such as DiagBox/Lexia or equivalent) to clear fault codes and, if required, program or match the unit to the vehicle.
• Verify SRS lamp extinguishes and run a final check of related systems (seatbelt sensors, airbag circuits). Observe all static-electrical precautions when handling airbag components.

Most Common Failure Reasons

• Crash Deployment: The most frequent reason for replacement is activation during an accident; the unit can store deployment data and often must be replaced afterward.
• Water Ingress And Corrosion: Moisture penetrating the cabin or dashboard area can corrode connectors or internal circuitry, causing faults.
• Electrical Surges Or Short Circuits: Voltage spikes from jump-starts, battery faults or wiring damage can damage internal electronics.
• Connector Damage Or Poor Grounding: Loose, corroded or damaged connectors commonly produce intermittent faults and fault codes.
• Internal Component Failure: Aging components or manufacturing defects can lead to unit malfunction; SRS warning lamp and stored fault codes usually indicate the problem.

This airbag control unit is a safety-critical part. When replacing it, follow manufacturer procedures, use appropriate diagnostic tools for post-installation checks and ensure all repairs restore full SRS functionality before returning the vehicle to service.

This airbag control unit (SRS Control Module) is a direct-fit electronic module intended for Citroën C2, Citroën C3 and Citroën C3 Pluriel. It monitors crash sensors, stores event data and controls airbag and pretensioner deployment during an impact. Mechanics and DIY enthusiasts commonly search by part numbers such as 9651927580 or 654583 — include these codes when looking up compatibility or replacement parts.

Function And Benefits

The unit continuously evaluates inputs from impact sensors, seat-belt buckle switches and airbag cushions to decide if and when to trigger safety devices. A properly functioning control unit ensures timely deployment of airbags and coordinated activation of seatbelt pretensioners, directly affecting occupant protection in a collision. Replacing a faulty unit restores the vehicle’s passive safety reliability and clears SRS fault warnings when combined with correct diagnostic procedures.

How The Part Is Replaced

Replacement should be performed by a trained technician or an experienced DIYer who follows safety rules. Basic steps typically include:

• Disconnect The Negative Battery Terminal And Wait At Least 10 Minutes To Allow Residual Charge To Dissipate.
• Remove Interior Trim Panels To Access The Control Unit (Locations May Vary By Model; Often Mounted Under The Center Console Or Passenger Footwell).
• Unplug Electrical Connectors And Unscrew Fasteners Holding The Module.
• Install The New Unit, Reconnect Connectors And Reassemble Trim.
• Use A Diagnostic Scanner To Clear SRS Fault Codes And Verify Correct System Status. Recalibration Or Coding May Be Required On Some Vehicles.

Replacement Frequency And Typical Fault Causes

Airbag control units are designed to last the vehicle’s life under normal conditions. Common reasons for replacement include damage from a prior collision (unit records crash events or is physically damaged), water ingress or corrosion of connectors, electrical surges, or internal component failure. After an impact the unit may store crash data and must be inspected and often replaced to restore full airbag functionality.

Installation Recommendations

• Always Disconnect The Battery Before Working On The SRS System And Follow Manufacturer Safety Intervals.
• Avoid Static Discharge And Do Not Probe Airbag Connectors With Power Applied.
• Replace Any Damaged Wiring Or Corroded Connectors To Prevent Recurrence Of Faults.
• Perform A Full SRS System Scan After Installation And Clear Stored Faults; Follow Any Reprogramming Or Coding Steps Required For The Vehicle.
• Keep A Record Of The Replaced Part Number For Future Service And Warranty Purposes.

Technical Information

• Manufacturer: Stellantis (Citroën/Peugeot)
• Model: Citroën C2; Citroën C3; Citroën C3 Pluriel
• Product Codes: 9651927580, 654583
• Other Numbers: 654584, 654691

Are you looking for a reliable, high-quality, and certified airbag system for your Citroën vehicle? Our airbag control unit specifically designed for Citroën C2 and C3 models is the ideal choice for anyone looking for an affordable yet effective replacement. This unit has been meticulously designed to ensure full functionality and safety.

The airbag control unit is a critical component for ensuring the passive safety of the vehicle, and its replacement is recommended in case of failure or after activation during an accident. Our product provides a perfect solution for repairs after unfortunate events, suitable for both sophisticated DIYers and professional auto mechanics.

Technical Information
Manufacturer: Citroën
Model: Citroën C2, Citroën C3
Product Codes: 9649003580, 6546A0, 654699 NFP
Other Numbers: Specific identification and comparison numbers

Our airbag system is the ideal solution for restoring your vehicle to its original, safe condition. With our offer of used but fully functional units, you can save on costs without compromising on quality and safety. We ensure that every part we sell meets strict standards and is ready for installation with simple connections that can be handled by both experienced mechanics and capable novices.

Looking for a reliable way to enhance the safety of your Citroën C3 Pluriel? Our used Airbag Control Unit is an excellent choice for both experienced mechanics and DIY enthusiasts aiming to perform effective repairs. This unit is fully operational and designed to seamlessly replace the original part, ensuring your journeys remain safe and comfortable.

Technical Information

Manufacturer: PSA Group
Model: Citroën C3 Pluriel
Product Codes: 9650091280, 6546A1, 6546A2
Additional Numbers: NFP
This airbag control unit is critical for the proper deployment of airbags during a collision, protecting the driver and passengers by inflating the airbags at the precise moment of impact.

For replacement guidance: The airbag control unit is typically located beneath the center console panel on the driver or passenger side, connected to the vehicle’s main electrical system. Replacement should be performed by qualified personnel, as improper handling may cause accidental airbag deployment.

Take advantage of our fully functional unit, carefully inspected and ready to be installed in your vehicle. Always ensure to use verified replacement parts in your auto repairs to guarantee safety and reliability on the road.

This airbag unit is designed specifically for Citroën C3 Pluriel models. It ensures the proper functionality of your vehicle’s airbag system, a critical component for passenger safety during collisions. Featuring part numbers 9651507580 and 6546A1, this unit is a trustworthy replacement to restore your vehicle’s safety system effectively.

Cost-effective compared to purchasing brand-new parts, this airbag unit offers comparable performance and reliability. It integrates seamlessly with the vehicle’s electrical system, providing peace of mind to both professional auto mechanics and knowledgeable DIY enthusiasts. Correct installation is vital to maintaining your vehicle’s safety standards.

Technical Information

• Manufacturer: PSA (Peugeot Citroën)
• Model: Citroën C3 Pluriel
• Product Codes: 9651507580, 6546A1, 6546A2
• Additional Numbers: NFP

Installation & Maintenance

This airbag unit can be replaced by experienced professionals or skilled vehicle owners with appropriate technical knowledge and tools. Airbag control units often require replacement after system faults or following an accident in which the airbags have deployed. Regular diagnostic checks can help detect issues early to ensure ongoing occupant protection.

Because airbag systems are crucial for on-road safety and involve sensitive electronics, it is recommended to entrust the installation to qualified technicians unless you have sufficient expertise. This guarantees optimal functionality and compliance with safety standards.

Why Choose This Part?

We carefully select and verify each used auto part we offer. This item delivers reliable performance, helping you maintain your Citroën C3 Pluriel’s safety features without the higher costs associated with new components. Trust our proven parts to keep your vehicle safe and roadworthy.

This unit is compatible with various models within the Citroën and Peugeot ranges, ensuring that you have a reliable replacement part for your vehicle. Maintaining or replacing the airbag unit is vital, as it ensures that the safety system functions correctly in case of an accident.

Technical Information

• Manufacturer: PSA
• Model: Citroën C3
• Product Codes: 9660961180, 9663357480
• Other Numbers: 6546C7, 6546C8, 6545S0, 6545S5, 6545V9, 6545WJ

It is recommended to replace the airbag unit if it has been deployed, as it cannot be reused. Additionally, regular inspections are advised to identify any potential issues arising from wear and tear over time. By opting for this airbag unit, you ensure that your vehicle’s safety features remain intact and fully functional.

Compatible models include Citroën C3 from 2007 onwards, making it a perfect fit for both professional mechanics and DIY enthusiasts. Regularly replacing airbag units is vital since components can deteriorate over time or after an accident, compromising safety. Proper installation is key; it typically involves disconnecting the battery, removing the old unit, and installing the new one, ensuring all connections are secure.

Technical Information:

• Manufacturer: PSA
• Model: Citroën C3
• Product Codes: 9663357480, 6546C7
• Other Numbers: 6546C8, 6545S0, 6545S5, 6545V9, 6545WJ

Ensure your airbag unit is in good condition for maximum performance and enhanced safety on the road. Replace worn-out or faulty units promptly to maintain the integrity of your car’s airbag system.