This used control unit is a direct-fit replacement for Citroën C4 Picasso and Grand Picasso models from 2006 to 2012. Supplied under reference numbers 96384805XT and 6554XK, the unit manages automatic height-correction functions of the vehicle’s chassis systems, helping maintain correct ride height and vehicle attitude under varying load conditions. Ideal for professional garages and experienced DIY mechanics, this part restores proper height regulation and contributes to consistent handling and lighting aim when the vehicle is properly configured.

Technical Information

• Manufacturer: Citroën (Stellantis)
• Model: Citroën C4 Picasso / Grand Picasso (2006–2012)
• Product Codes: 96384805XT, 6554XK
• Additional Numbers: 6554XK | 96384805XT

Function

The Control Unit Regulates The Vehicle’S Height-Correction System By Processing Inputs From Height Sensors And Other Vehicle Sensors, Then Commanding Actuators, Valves Or Motors Responsible For Ride-Height Adjustment. Proper Operation Ensures Stable Handling, Correct Chassis Geometry And Consistent Headlight Aim (Where Linked To Lighting Leveling Systems).

Fitment And Compatibility

Direct Fit For Citroën C4 Picasso And Grand Picasso Models Manufactured Between 2006 And 2012 That Use The Corresponding Height-Correction Electronics. Search By Product Codes 96384805XT Or 6554XK To Locate This Exact Item Quickly.

Replacement Procedure (Overview)

1. Disconnect The Battery Before Starting Work To Prevent Short Circuits Or Damage To The Unit. 2. Locate The Existing Control Unit (Location Varies By Model Year And Equipment Level). 3. Remove Any Trim Or Mounting Hardware To Access The Unit. 4. Unplug The Electrical Connector Carefully, Inspecting For Corrosion Or Bent Pins. 5. Replace With The New Unit, Secure Mounting And Reconnect The Connector. 6. Reconnect The Battery And Perform Any Required Initialization Or System Checks (Some Vehicles May Require A Reset Or Adaptation Procedure After Replacement). Always Follow Manufacturer Service Procedures Where Available.

Installation Recommendations

• Disconnect Battery Before Removal To Protect Vehicle Electronics.
• Inspect Connectors And Wiring For Corrosion Or Damage; Repair Any Compromised Harnesses.
• Ensure Secure Mechanical Mounting To Avoid Vibration-Induced Failures.
• After Installation, Verify System Operation: Check Ride Height, Sensor Signals And Any Related Warning Lights.
• If The Vehicle Requires Initialization Or Coding After Fitment, Use Appropriate Diagnostic Equipment And Follow PSA Service Procedures.

Most Common Causes Of Failure

Units Like This Typically Fail Due To Moisture Ingress, Corroded Or Damaged Connectors, Electrical Short Circuits, Internal Component Wear From Age Or Heat, And Mechanical Damage From Impacts Or Poor Mounting. Fault Symptoms Include Incorrect Ride Height, Warning Lights Related To Suspension Or Stability Systems, And Inconsistent Headlight Aim If The Unit Is Part Of An Integrated System.

Why Choose This Part

Featuring Exact Product Codes 96384805XT And 6554XK For Easy Identification, This Control Unit Is Suited For Workshops And Knowledgeable DIYers Seeking A Reliable Replacement To Restore Height-Correction Functionality On Affected Citroën C4 Picasso Vehicles.