Description
Autoliv Airbag Control Unit for PEUGEOT 407
This Airbag Control Unit (SRS Module) supplied by Autoliv is a direct-fit safety module for the Peugeot 407. It Monitors Crash Sensors And Controls Airbag And Pretensioner Deployment, Storing Crash Events And Communicating With The Vehicle Network To Trigger Restraint Systems When Needed. Supplied With Common OEM Numbers, This Unit Is Sought-After By Mechanics And DIY Enthusiasts Searching By Part Number (e.g. 9655880880 / 603554600 / 6545HY).
Features And Function
The SRS Control Unit Is The Central Electronic Module For Occupant Restraint Management. Key Roles Include:
- Detecting Impact Signals From Accelerometers And Crash Sensors.
- Deploying Front And Side Airbags As Well As Seatbelt Pretensioners When Thresholds Are Exceeded.
- Logging Crash Data To Memory For Diagnostics.
- Communicating With Other Vehicle Modules Over The CAN Bus To Coordinate Safety Actions.
Compatibility
Intended For Peugeot 407 Models. Fits Typical Body Types Including Saloon, Estate (SW) And Coupé. Check The Part Numbers Below For Exact Match With The Vehicle’s Existing Unit.
Replacement Procedure
Replacement Of The Airbag Control Unit Should Be Performed By A Trained Technician Or An Experienced DIY Mechanic Following Safety Precautions. Typical Steps:
- Disconnect The Battery Negative Terminal And Wait At Least 10 Minutes To Allow SRS Capacitors To Discharge.
- Remove Interior Trim Panels To Access The Module Location (Commonly Mounted Under The Center Console Or Behind The Lower Dashboard Depending On Model).
- Unscrew The Module Fasteners And Carefully Unplug The Multi-Pin Connectors, Releasing Any Locking Tabs.
- Fit The Replacement Unit Securely, Reconnect All Connectors And Reinstall Trim.
- Use A Diagnostic Tool To Clear SRS Fault Codes And Verify System Operation. Resetting Or Initializing The Unit May Be Required To Extinguish The Airbag Warning Lamp.
Technical Information
- Manufacturer: Autoliv
- Model: Peugeot 407
- Product Codes: 9655880880, 603554600
- Additional Numbers: 6545HY, 6545HZ
Installation Recommendations
- Always Disconnect The Battery Before Starting Work And Follow The Manufacturer’s Safety Procedures To Avoid Accidental Deployment.
- Handle The Module And Connectors With Care; Avoid Impact, Moisture And Static Discharge.
- After Installation, Use A Capable Diagnostic Tool To Clear Stored Crash Codes And Verify The SRS System. If The Airbag Warning Lamp Persists, Recheck Wiring, Ground Connections And Connector Integrity.
- Store And Transport Units In A Clean, Dry Environment To Prevent Corrosion Or Damage.
Common Failure Causes
- Crash Deployment: Modules Often Become Non-Serviceable After An Impact Because Crash Data Or Internal Damage Occurs During Deployment.
- Water Ingress And Corrosion: Moisture Penetration Into Connector Areas Or The Housing Can Cause Erratic Behavior Or Permanent Failure.
- Electrical Surges Or Short Circuits: Faults In Wiring Or Aftermarket Equipment Can Damage Electronics Inside The Unit.
- Connector Damage Or Poor Grounding: Loose Or Corroded Connections Lead To Fault Codes And Intermittent Operation.
Buying Note
Searches By Part Number Are Common For This Unit — Use The Listed Product Codes To Confirm Fitment. This Module Is A Critical Safety Component; Ensure Proper Installation And Diagnostic Verification To Restore Full SRS Functionality.
