This Airbag Control Unit (SRS Module) is a direct-fit replacement for Peugeot 308 T7 vehicles. Ideal for professional workshops and experienced DIY mechanics, this used unit is supplied with the common OEM reference numbers to help you find an exact match quickly. The unit is compatible with standard SRS systems and is often searched by product codes such as 619763800, 9674291480 and 6546AP — include these identifiers when locating the correct part for your vehicle.

Overview

The SRS (Supplemental Restraint System) Control Unit monitors crash sensors, controls airbag and seatbelt pretensioner deployment, and stores fault and crash history. A functioning control unit is essential for occupant safety and for the vehicle to pass diagnostic checks. This unit is suitable for Peugeot 308 models (T7) equipped with factory airbag systems.

Technical Information

• Manufacturer: Stellantis / Peugeot
• Model: Peugeot 308 (T7)
• Product Codes: 619763800, 9674291480, 6546AP
• Additional Numbers: 9803946780

Function And Purpose

The airbag control unit continuously reads inputs from impact sensors, seat occupancy sensors and belt buckle switches. In the event of a collision that meets deployment criteria, the module triggers the appropriate airbags and pretensioners. It also performs self-diagnostics and stores fault codes and crash event data for later retrieval with a diagnostic tool.

Fitment And Compatibility

Designed for Peugeot 308 T7 series vehicles equipped with the standard SRS system. Use the listed product codes to confirm physical fit and connector type. Compatibility depends on the vehicle equipment level and year — check harness connector shape and mounting location when replacing.

Installation Recommendations

• Always Disconnect The Battery Before Starting Work And Wait At Least 10 Minutes To Allow System Capacitors To Discharge.
• Locate The Unit (Typically Mounted Centrally Under The Dashboard Or In The Centre Console Area Depending On Model Variant). Remove Required Trim Panels To Access The Module.
• Unbolt The Module And Carefully Release Electrical Connectors Using The Correct Tools. Avoid Pulling On Wiring.
• Install The Replacement Unit In Reverse Order. Ensure All Connectors Are Fully Seated And Bolts Are Torque-Fastened To Manufacturer Specifications.
• After Installation, Clear Fault Codes And Perform A Full SRS System Check With A Professional Diagnostic Tool. If The Unit Contains Stored Crash Data, It Must Be Handled And Configured According To Workshop Procedures.
• If You Are Not Familiar With SRS Systems Or Diagnostic Procedures, Have The Final Commissioning Performed By A Qualified Technician.

Why This Part Most Commonly Fails

• Crash Impact: The Most Frequent Cause — After Airbag Deployment The Control Unit Can Record Crash Data And May Require Replacement.
• Water Ingress Or Corrosion: Moisture Reaching Connectors Or The Module Housing Can Cause Electrical Faults.
• Electrical Faults Or Short Circuits: Battery Issues, Improper Jump-Starting Or Previous Poor Repairs Can Damage Internal Electronics.
• Connector Damage Or Mechanical Stress: Loose Or Damaged Wiring And Harsh Removal/Installation Can Lead To Intermittent Faults.

Notes For Professionals

Use The Listed OEM References During Parts Search To Minimize Fitment Errors. This unit is intended for customers familiar with SRS procedures and diagnostic tools. Replacing an airbag control unit without proper diagnosis and post-installation checks can leave the system unsafe.

Description

This Airbag Control Unit (SRS Module) is designed for Peugeot 308 T7 vehicles and is ideal for professional workshops and experienced DIY mechanics. The unit monitors crash sensors, seat belt pretensioners and airbag deployment circuits, storing fault codes and deployment history. It is commonly searched by part numbers, so we list relevant references below to help you find the correct replacement quickly. Installing the correct SRS unit restores safety system monitoring; however, the SRS is a safety-critical component, so follow all safety procedures and verify system status with a diagnostic tool after installation.

Technical Information

• Manufacturer: Stellantis (Peugeot / Citroën)
• Model: Peugeot 308 T7
• Product Codes: 610714900, 9665100080
• Other Numbers: 6546G6, 6546G7, 6546W

How It Works And Typical Symptoms

The airbag control unit continuously monitors inputs from accelerometers, crash sensors, seat belt buckle switches and airbag circuits. If the system detects a fault, the SRS warning lamp on the dashboard will illuminate and related safety functions (airbags, pretensioners) may be inhibited. Common symptoms indicating a faulty unit include illuminated SRS warning light, logged error codes related to the SRS module, and after a collision the unit may show deployment or crash-recorded data.

How To Replace

Replacement of the SRS control unit should be performed by a qualified technician or an experienced DIYer who understands airbag safety procedures. Typical replacement steps:

• Disconnect the negative battery terminal and wait at least 10 minutes to allow system capacitors to discharge.
• Remove surrounding trim or console panels to access the SRS control unit (location depends on vehicle specification; often under the center console or under the front seats on Peugeot 308 T7 variants).
• Unbolt the unit, carefully unplug electrical connectors using appropriate release tabs—do not force or damage terminals.
• Fit the replacement unit, secure fasteners to manufacturer torque, reconnect connectors and reassemble interior trim.
• Use a compatible diagnostic tool to read and clear SRS fault codes, perform system checks and verify airbag readiness. Clearing faults and running the SRS system check is essential before returning the vehicle to service.

Installation Recommendations

• Always follow the vehicle manufacturer’s service instructions. Disconnect the battery before removal and keep the work area free of static and sources of electrical interference.
• Avoid dropping or striking the control unit. Do not open or attempt internal repairs—these units contain sensitive electronics and safety-critical data.
• After installation, verify system status with a PSA-compatible diagnostic tool (DiagBox/Lexia) or equivalent to ensure the SRS lamp is extinguished and no residual crash data prevents proper operation.
• If the vehicle was involved in a collision, confirm whether associated sensors or harnesses were damaged; replacing the SRS unit alone may not resolve faults caused by external component damage.

Most Common Causes Of Failure

• Impact/Collision: The most frequent reason for SRS unit replacement is a crash where the unit records deployment data or is physically damaged.
• Water Ingress: Moisture or flooding can corrode connectors or damage internal electronics.
• Electrical Surges And Short Circuits: Improper jump-starting, battery disconnects without following procedure, or wiring faults can damage the module.
• Connector Corrosion Or Mechanical Damage: Loose or corroded connectors and harness damage can lead to intermittent faults and SRS warnings.

Note For Professionals

This item is often looked up by part numbers listed above. Ensure physical and connector compatibility with the vehicle’s harness and mounting points before installation. After fitting, always confirm the SRS lamp status and perform a full diagnostic check to ensure the vehicle’s passive safety systems are fully operational.