Description
Airbag control unit Autoliv for Peugeot 407. Fully functional.
This Airbag Control Unit (SRS Control Module) from Autoliv is a direct-fit safety electronics component for the Peugeot 407. Designed for professional workshops and experienced DIYers, this unit restores correct airbag and seatbelt pretensioner functionality and clears persistent SRS fault indicators when installed and configured properly. Common search terms include airbag control unit Peugeot 407, SRS control module 9654717280, and part numbers 6545HY / 6545HZ — useful for fast identification when ordering or replacing the module.
Benefits: Reliable Original-Equipment Supplier Reference, Compatible With Stellantis Platforms, Restores Vehicle Safety Systems, Reduces Time Diagnosing SRS Faults. Ideal For Auto Mechanics And Skilled Enthusiasts Who Need A Part By OEM Or Reference Number.
Technical Information
- Manufacturer: Autoliv
- Model: Peugeot 407
- Product Codes: 9654717280, 603554600
- Additional Numbers: 6545HY, 6545HZ
- Related Brands: Stellantis / Citroën / Peugeot
Function and Symptoms
The airbag control unit is the central electronic module that monitors crash sensors, deployment circuits and seatbelt pretensioners. It logs crash events and fault codes and commands airbag deployment in the event of a collision. Common symptoms of a faulty SRS control unit include persistent airbag warning lamp, multiple SRS fault codes on a diagnostic tool, or airbags/pretensioners not arming correctly.
How Replacement Works
Replacement should be performed by a trained technician or an experienced DIYer familiar with safety systems. Typical procedure: safely disconnect the vehicle battery and wait the recommended time for the SRS capacitors to discharge; remove trim and access panels to reach the module; unplug connectors and remove mounting fasteners; transfer any brackets or harness clips if required; install the new unit, reconnect and secure all plugs and mounts. Final step: use a diagnostic tool to read/clear SRS codes and complete any required initialization or coding if the vehicle requires module registration.
Installation Recommendations
- Disconnect Negative Battery Terminal And Wait At Least 10 Minutes Before Starting Work.
- Follow Manufacturer Safety Procedures For Working With SRS Components.
- Keep Connectors Clean And Dry; Inspect Wiring Harness For Damage Or Corrosion.
- Transfer Any Mounting Hardware Or Sensor Brackets From The Old Unit To Ensure Correct Fitment.
- After Fitment, Use A Compatible Diagnostic Tool To Clear Fault Codes And Verify SRS Lamp Status; Some Vehicles Require Module Coding/Initialization.
Most Common Failure Reasons
- Airbag Deployment: Units Often Need Replacement After A Crash Event That Triggers Deployment.
- Electrical Faults: Short Circuits, Voltage Spikes Or Improper Jump-Starting Can Damage The Module.
- Water Ingress Or Corrosion: Moisture In The Connector Area Or Module Housing Causes Failures.
- Sensor Or Wiring Damage: Faulty Crash Sensors Or Damaged Harnesses Can Lead To Persistent SRS Faults.
Choosing the correct part number (see Technical Information) and following safe installation practices ensures the airbag system operates as intended and the vehicle meets safety requirements after repair.
