Central Locking Actuator Citroën C4 96476626XT 6554LF

Description

Central Locking Controller For Citroën C4 First Generation

This central locking controller is a direct-fit replacement designed for the first-generation Citroën C4. Ideal for professional workshops and DIY mechanics, the unit restores reliable locking and unlocking functions across door actuators, remote key operation and central locking system logic. Frequently searched by its part numbers 96476626XT and 6554LF, this controller is a common fault item on aging C4 vehicles and is optimized for quick identification and purchase.

Key Features & Benefits

– Direct application for Citroën C4 First Generation models. Suitable for technicians looking for the OE-coded items 96476626XT / 6554LF.
– Restores central locking control including remote locking/unlocking, deadlocking when fitted, and door status signals to the vehicle comfort system.
– Improves reliability compared with worn or water-damaged original modules; ideal when diagnostics point to control unit faults after ruling out fuses, relays and actuator wiring.

Typical Fitment And Notes

Primary Fitment: Citroën C4 (First Generation). When ordering, customers often search by product codes 96476626XT and 6554LF — include these in searches to speed up finding the correct part. The unit is intended as a replacement controller for central locking systems on the specified C4 models; compatibility with other PSA-platform vehicles should be confirmed by cross-referencing part numbers.

Installation Recommendations

• Disconnect the negative battery terminal before beginning work.
• Access the controller typically via the driver-side dashboard area or under trim panels—remove the necessary trim panels using appropriate plastic trim tools to avoid damage.
• Inspect and document connector positions and wiring before unplugging. Check fuses and relays related to central locking first to rule out simpler faults.
• Use a multimeter to verify power and ground at the module connector if diagnosing intermittent faults.
• After fitting, verify full system operation: remote locking/unlocking, individual door actuators, interior lock switches and alarm/immobiliser interactions.
• Recommended tools: Torx set, trim removal tools, multimeter, and basic hand tools. For coding or adaptation, see the Installation and Coding section below.

Most Common Failure Causes

Central locking controllers typically fail due to moisture ingress and corrosion of internal contacts, electrical short circuits from damaged wiring looms in door areas, or thermal stress after many years of service. Repeated actuator stalls (e.g., seized lock motors) can overload the module. Symptoms include intermittent locking/unlocking, loss of remote function, or total inoperability of the central locking system.

Expected Lifetime And Diagnostics Tips

On average, controllers in door and comfort systems last 8–15 years depending on exposure to moisture, salt and mechanical stress. When diagnosing, always check fuses, relays, actuator resistance and connector corrosion first. Replacing door actuators without addressing a faulty controller (or vice versa) may not resolve the issue — perform a step-by-step test of the entire locking circuit.

Installation and Coding – Important

• The Unit Is Used And Is “Paired” With The Original Vehicle (VIN/PIN/Keys).
• Options To Get It Operational:
  1. Cloning Data From The Old Unit (EEPROM/Flash) – After Cloning The Unit Is Plug And Play.
  2. Virginization And Subsequent Initialization/Telecoding Via DiagBox (Or Online) + Key Adaptation.
• Recommended To Be Performed By A Professional With PSA Service Equipment (DiagBox/Lexia/PP2000).
• Before Removal/Installation Always Disconnect The Battery And Follow Manufacturer Procedures To Avoid Damaging The Unit.

Technical Information

• Manufacturer: Stellantis (Citroën/Peugeot)
• Model: Citroën C4 (First Generation)
• Product Codes: 96476626XT, 6554LF
• Other Numbers: N/A

Final Advice For Buyers

If the vehicle shows central locking issues, perform a methodical check (fuses, relays, actuator load, wiring) before replacing the controller. When the controller is confirmed faulty, use the correct part codes (96476626XT / 6554LF) to ensure you receive the matching unit. For coding or adaptation, engage a workshop with PSA diagnostic equipment to guarantee full system integration.