Overview

This airbag control unit (SRS Module) is designed for Citroën C8 and Peugeot 807 models and is a direct replacement part identified by product codes 1495658080 and 654674. The unit monitors crash sensors and seatbelt pretensioners, decides deployment of airbags in the event of a collision, and stores fault and event data. It is a suitable choice for professional workshops and experienced DIY enthusiasts who need a reliable SRS controller to restore safety system functionality after fault diagnosis or vehicle repair.

Technical Information

• Manufacturer: Stellantis (Citroën / Peugeot)
• Model: Citroën C8, Peugeot 807
• Product Codes: 1495658080, 654674
• Other Numbers: NFP

Installation Recommendations

Follow safe workshop procedures when replacing an airbag control unit: always disconnect the vehicle battery and wait at least 10–15 minutes (or follow the manufacturer specified interval) before starting work to avoid accidental deployment. Remove interior trim panels to access the module, unplug electrical connectors carefully, and unbolt the unit from its mounting. After fitting the replacement unit, use a compatible diagnostic tool to read and clear SRS fault codes and to perform any required system checks. For PSA vehicles, professional DiagBox/Lexia equipment is recommended for full diagnostics and verification of system readiness. Handle the unit with care and avoid exposing connectors to moisture or contamination during installation.

Why This Part Fails Most Often

Common causes of airbag control unit failure include a previous collision (the unit records crash events and is often replaced after airbag deployment), water ingress or corrosion of connectors, electrical surges or short circuits, and internal component degradation over time. Faults may present as SRS warning lights on the dashboard, stored fault codes, or disabled airbag/pretensioner functions. Because the unit is central to occupant restraint deployment, any SRS warning should be diagnosed promptly and repaired by a qualified technician.

Practical Notes For Fitment

• Verify the product codes 1495658080 and 654674 against the vehicle’s SRS module label before installation.
• Replacement is generally necessary after airbag deployment or when the module reports unrecoverable SRS faults.
• After installation, perform a full SRS system scan and clear stored crash data if appropriate using a diagnostic interface.

Conclusion

This airbag control unit is a practical replacement option for Citroën C8 and Peugeot 807 owners and workshops seeking to restore SRS functionality. With correct installation and post-fit diagnostics, it returns critical safety systems to operational condition and helps ensure occupant protection.

This airbag control unit (SRS/Restraint Control Module) is suitable for Citroën C8 and Peugeot 807 models and is listed under part numbers 1400987180, 6546H0 and 6546H1. Engineered for professional workshops and experienced DIY mechanics, this unit replaces a faulty SRS brain to restore proper airbag system operation, clear crash flags and allow secure deployment in the event of an accident. Clear product codes in the description make it easy to find on search engines and in parts catalogs.

Technical Information

• Manufacturer: Stellantis
• Model: Citroën C8; Peugeot 807
• Product Codes: 1400987180, 6546H0, 6546H1
• Additional Numbers: 6546H0 / 6546H1 (cross-references)

Function And Role

The airbag control unit continuously monitors crash sensors, seatbelt pretensioners and passenger occupancy signals. In a collision, it evaluates sensor inputs and issues the deployment command to the airbags and pretensioners. It Also Stores Crash Data And Diagnostic Trouble Codes That Are Readable With A Diagnostic Tool, Which Helps Determine System Status After An Event.

Common Failure Causes

• Impact Or Previous Collision That Triggered Deployment Or Set Crash Flags.
• Electrical Issues: Short Circuits, Connector Corrosion Or Damaged Wiring Harnesses.
• Moisture Ingress Or Water Damage Leading To Internal Corrosion Or Electronic Faults.
• Aging Electronics: Faulty Components Or Loss Of Calibration Over Time.
• Improper Repairs Or Aftermarket Interference That Affect Signal Integrity.

Installation Recommendations

• Safety First: Disconnect The Negative Battery Terminal Before Any Work And Wait At Least 10 Minutes To Allow SRS Capacitors To Discharge.
• Handle With Care: Avoid Dropping The Unit Or Exposing It To Moisture. Do Not Open Or Attempt To Repair The Module Internally.
• Removal: Remove Required Trim Panels To Access The Unit, Unplug Electrical Connectors Using Proper Release Tools, Then Unbolt The Module From Its Mounting Points.
• Fitment: Install The Replacement Unit In The Correct Orientation, Secure Bolts To Original Positions And Reconnect All Plugs Ensuring Firm Contact.
• Diagnostics And Reset: After Installation Use A Qualified Diagnostic Tool To Read And Clear Fault Codes, Confirm Airbag System Integrity And Perform Any Required Calibration Or Relearning Procedures.
• Verification: Confirm That The Airbag Warning Light Behaves Normally (Illuminates On Key-On Self-Test Then Switches Off) Before Returning The Vehicle To Service.

This listing is optimized for technicians and car owners who search by part number (1400987180, 6546H0, 6546H1) or by model (Citroën C8, Peugeot 807). Replacing the airbag control unit with the correct code helps restore safety system functionality and ensures the restraint system operates as designed.

Provide your CITROËN C8 or PEUGEOT 807 with a high-quality used airbag control unit that guarantees reliable operation of your vehicle’s airbags. This unit is essential for the proper functioning of the car’s safety systems and is specifically designed for the CITROËN C8 and PEUGEOT 807 models. It ensures that airbags deploy correctly and immediately in the event of an accident, potentially saving lives.

Replacement of this unit is recommended to be carried out by a professional mechanic to ensure correct functionality and compatibility with the vehicle’s electrical system.

Technical Information:

Manufacturer: PSA Citroën Peugeot
Model: CITROËN C8, PEUGEOT 807
Product Codes: 1401277280, 6546H0, 6546H1
Additional Numbers: marked on the product

Investing in a properly functioning airbag control unit is crucial not only for your safety but also for maintaining the overall value of your vehicle. Purchasing this quality used and operational unit offers you a reliable product at a fraction of the cost of a new part.

Product Description

This airbag (SRS) control unit is a direct-fit replacement for Citroën C8 and Peugeot 807 vehicles. The unit is often searched by OEM and aftermarket codes such as 1400157980, 654674 and 654688, so technicians and DIY enthusiasts will find it easy to locate. Designed to restore proper SRS system operation after a faulty or damaged module, the unit supports all primary airbag system functions and interfaces with crash sensors and restraint devices.

Function

The SRS Control Unit Monitors Crash Sensors, Airbag Circuits And Seatbelt Pretensioners. It Evaluates Sensor Signals Continuously And Triggers Airbag Deployment In The Event Of A Detectable Collision. The Module Also Stores Diagnostic Fault Codes And, In Some Cases, Event Data Related To A Crash.

Compatibility

Intended For Use In Vehicles: Citroën C8, Peugeot 807. This Unit Is Commonly Referenced By The Following Codes: 1400157980, 654674, 654688 (Also Shown As NFP In Some Listings). Searching By These Numbers Will Help Quickly Identify Fitment For The Correct SRS System Variant.

Technical Information

• Manufacturer: Stellantis / Citroën / Peugeot
• Model: Citroën C8; Peugeot 807
• Product Codes: 1400157980
• Other Numbers: 654674; 654688; NFP

Installation Recommendations

• Always Disconnect The Battery Before Starting Work And Observe Manufacturer Safety Precautions To Avoid Unwanted Airbag Deployment Or Module Damage.
• Remove Interior Trim Panels To Access The Unit; Unplug Electrical Connectors And Remove Fasteners Securing The Module.
• Fit The Replacement Unit Securely, Reconnect All Plugs And Restore Battery Power.
• After Installation, Perform A Full SRS Diagnostic Scan With A Compatible Diagnostic Tool And Clear Fault Codes. Verify That The Airbag Warning Lamp Is Extinguished And That The System Reports No Active Faults.
• Because The SRS System Is Safety Critical, Consider Professional Installation If You Are Not Experienced With Airbag Systems.

Why The Part Fails

Airbag Control Units Typically Fail Due To One Or More Of The Following Reasons:

• Vehicle Collision Or Previous Airbag Deployment – Modules May Contain Crash Event Data And Often Require Replacement After A Deployment.
• Water Ingress Or Corrosion – Moisture Can Damage Circuitry Or Electrical Connections.
• Electrical Surges Or Short Circuits – Faults In Wiring Or Aftermarket Equipment Can Cause Module Damage.
• Connector Corrosion Or Poor Grounding – Leads To Intermittent Signals And Error Codes.

Signs Of A Faulty Unit

• Persistent Airbag Warning Light On Instrument Panel.
• Stored SRS Fault Codes Reported By A Diagnostic Scanner.
• Airbag Or Pretensioner Circuits Shown As Disabled Or Not Responding.
• Inability To Clear Safety Restraint Faults Without Module Replacement.

Practical Notes For Mechanics And DIYers

Search By The Mentioned Product Codes (1400157980, 654674, 654688) To Quickly Match The Correct Unit. When Replacing An SRS Module, Handle It Carefully, Avoid Static Discharge And Follow Proper ESD Precautions. If The Unit Contains Crash Data From A Previous Deployment, Replacement Is Required To Restore Full System Functionality And Safety.

Summary

This Airbag Control Unit Is A Functional Replacement Option For Citroën C8 And Peugeot 807 Vehicles Identified By The Listed Codes. It Restores Core SRS Functions When The Original Module Is Faulty Or Damaged. For Safety-Critical Work, Use Proper Diagnostic Tools And Follow Manufacturer Procedures.

Are you looking for a reliable part for your vehicle’s safety system? This used airbag unit for Citroën C8 and Peugeot 807 is the ideal choice for those wanting to keep their vehicle safe without investing in new, often expensive components. The unit has been carefully tested and is fully functional, ensuring peace of mind and effective protection for all passengers.

This unit is a replacement part for Citroën C8 and Peugeot 807 models, designed to work seamlessly with your vehicle’s other safety systems. Installation is relatively simple and can be performed by DIY enthusiasts with some automotive electrical knowledge or your trusted mechanic, who will ensure everything functions safely.

The airbag unit is a critical component of the vehicle that inflates airbags during a collision, protecting passengers from injury. Given its importance, it is essential to always be in excellent condition. We recommend regular checks and replacing damaged parts due to its status as a key safety feature.

Technical Information

• Manufacturer: PSA (For Citroën and Peugeot)
• Model: Suitable for Citroën C8 and Peugeot 807
• Product Codes: 1400324580 654674; 654688
• Other Numbers: NFP

By purchasing this unit, you are acquiring a quality part that has undergone thorough testing and is ready for installation and further use. Keep your ride safe and efficient with this reliable part, specifically designed for your vehicle models. Don’t wait for potential issues—secure this airbag unit today!

This Airbag Control Unit (SRS Control Module) is designed for Citroën C8 and Peugeot 807 vehicles and is commonly referenced by part numbers 1400612380, 6546H0 and 6546H1. Designed for professional workshops and experienced DIY mechanics, this unit monitors crash sensors, manages airbag deployment logic and communicates SRS faults to the vehicle’s diagnostic system. If you search by part number to find a direct replacement, these identifiers increase the chance of a correct match.

Key Benefits

Reliable SRS signal processing and compatibility with original Stellantis Citroën/Peugeot wiring make installation straightforward for trained technicians. The unit restores proper airbag system diagnostics and is suitable for vehicles where the original control module is faulty or inoperative.

Function And Typical Failure Modes

The airbag control unit continuously evaluates input from crash sensors, seat occupancy sensors and seat belt pretensioner circuits to determine if and when to deploy restraint devices in a crash. It also stores fault and event memory (crash data) and illuminates the SRS warning lamp when faults are present.

Common causes of failure include damage from a prior collision (including internal deployment-related faults), water ingress and corrosion in connectors, electrical surges, poor grounding or wiring short circuits. In many cases the module itself remains usable after minor impacts, but connector corrosion or wiring faults are frequent culprits for SRS warning lights.

Compatibility And Application

Intended For: Citroën C8, Peugeot 807. Common Part Numbers: 1400612380, 6546H0, 6546H1. Manufacturer: Stellantis (Citroën/Peugeot systems).

Installation Recommendations

• Disconnect Negative Battery Terminal And Wait: Before starting work, disconnect the negative battery terminal and wait at least 10–15 minutes to allow the SRS capacitors to discharge.
• Handle With Care: Avoid impact, electrostatic discharge and exposure to moisture. Do not attempt to open the module housing.
• Connector Inspection: Inspect and clean vehicle connectors and wiring harness for corrosion or damage. Replace damaged pins or harness sections before installing the new unit.
• Mounting: Secure the unit using original mounting points and torque fasteners to manufacturer specifications to avoid vibration-related faults.
• Post-Installation: Use an OBD diagnostic tool capable of SRS functions to clear stored fault codes and confirm system readiness. Some repairs may require initialization procedures or fault memory deletion using manufacturer-level diagnostic equipment.

Why This Part Fails Most Often

Airbag control units commonly fail following vehicle collisions (deployment events), but non-collision failures are frequently caused by moisture/corrosion in connectors, electrical shorts or poor ground connections. Prolonged exposure to damp environments or previous improper electrical repairs can accelerate failure.

Technical Information

• Manufacturer: Stellantis (Citroën/Peugeot)
• Model: Citroën C8 / Peugeot 807
• Product Codes: 1400612380, 6546H0
• Additional Numbers: 6546H1

Note For Mechanics: When replacing an SRS control module, always follow vehicle manufacturer service procedures and use appropriate diagnostic tools to verify system integrity. Correct installation and a proper diagnostic check ensure that the airbag system will function correctly and that no residual faults remain.

The module manages the deployment of airbags during a collision, a critical function for occupant safety. Failure of this unit can compromise airbag operation, posing significant risks. Typical causes of failure include electrical faults, sensor errors, or impact damage. Replacement is straightforward and can be performed by experienced car owners or professional mechanics. Proper installation is essential to ensure the module communicates correctly with the vehicle’s crash sensors and airbag units.

Technical Information

Manufacturer: PSA Citroën Peugeot
Models: Citroën C8, Peugeot 807
Product Codes: 1400684780, 6546H0, 6546H1
Additional Numbers: None available

This Airbag Control Module is specifically designed for use in Citroën C8 and Peugeot 807 models. To guarantee compatibility, verify the product codes with your vehicle’s existing unit before purchase. Precise matching ensures the correct fit and functionality for your airbag system.

By choosing this airbag unit, you benefit from a component that meets the stringent safety requirements of PSA Group vehicles. Our support team is ready to assist with any technical questions or guidance needed during installation. Protect your vehicle and passengers by ensuring your airbag system is fully operational.