Description
Central locking switch for Citroën C3 A51 2009–2016
Product Overview
This listing is for a used central locking switch compatible with Citroën C3 II (A51) models produced between 2009 and 2016. The switch carries the part references 96656596KR and 6490ET and is commonly fitted in driver-side controls or the center console depending on trim level. It provides the driver with a single-button control to lock and unlock all doors electrically and integrates with the vehicle’s central locking system.
Why This Part Matters
The central locking switch is a frequently used interface whose proper function is essential for convenience and security. A worn or faulty switch causes intermittent locking, failure to lock/unlock doors from the cabin, or a stuck button that can lead to frustration during daily use. Replacing the switch restores reliable control of the central locking system without the need for more extensive repairs.
Technical Information
- Manufacturer: Stellantis / Citroën
- Model: Citroën C3 II (A51) 2009–2016
- Product Codes: 96656596KR, 6490ET
- Additional Numbers: —
Function and Symptoms
Function: The switch sends a signal to the body control module (BCM) or central locking unit to activate door lock actuators. It is a user-operated electrical/mechanical component that completes a circuit when pressed.
Common Symptoms of Failure:
- Doors Do Not Lock Or Unlock From The Cabin
- Intermittent Operation Or Multiple Presses Needed
- Button Feels Loose, Stuck, Or Mechanically Damaged
- Other Central Locking Anomalies When Operated From The Driver’s Controls
Installation Recommendations
Replacement is straightforward for a competent mechanic or a DIYer with basic tools. Typical steps:
- Disconnect The Negative Battery Terminal Before Working On Electrical Parts.
- Remove The Relevant Trim Panel Or Armrest To Access The Switch (Plastic Trim Tools Prevent Damage).
- Release The Switch Retaining Clips And Pull The Switch From Its Housing.
- Disconnect The Electrical Connector And Replace With The New Switch.
- Reconnect The Connector, Test The Switch Function Before Reassembling Trim, Then Refit Panels Securely.
If Wiring Or Connectors Are Corroded, Repair Those Faults To Prevent Repeat Failures. Use Care To Avoid Damaging Door Trim Clips.
Why This Part Typically Fails
- Wear On Internal Contacts Due To Frequent Use Causes Loss Of Electrical Continuity.
- Moisture Ingress From Door Seals Leads To Corrosion Or Short Circuits.
- Mechanical Damage From Forceful Operation Or Impact On Trim.
- Faulty Wiring Or Connector Corrosion At The Harness Plug.
Practical Tips
- Verify The Part Numbers (96656596KR / 6490ET) Match Your Requirement Before Installation.
- Inspect Wiring And Connector Pins For Corrosion And Clean Or Replace As Necessary.
- After Installation, Cycle The Locks Several Times To Confirm Reliable Operation.
Compatibility And Fitment
Designed For Citroën C3 II (A51) Models 2009–2016. Part Numbers Shown Are The Primary References Often Used When Searching For This Switch.
