Part description

This used driver’s seat harness is intended for Citroën C4 Picasso and is an important electrical component connecting the functions of the seat. The part provides signal transmission and power for the systems listed in the documents, i.e. seat heating and airbag.

For wiring harnesses, correct connector matching, wiring routing and part marking are essential. That is why this type of car part is often searched by serial number. If you are looking for a genuine used seat wiring repair part, this is a practical solution for auto mechanics and home repairs.

Technical information

• Manufacturer: Valeo
• Model: Citroën C4 Picasso
• Other numbers: 5243566, 243566, NFP

Product codes

• Product codes: 6505T6, 5243566, 243566
• Models: Citroën C4 PICASSO

Installation recommendations

Since the documents do not contain exact assembly steps for a specific car model, below is a general procedure typically used to replace a seat harness. The exact steps may vary depending on the specific model and make of the vehicle.

1) Before assembly

• Check that all connectors, harness length, branch shape and attachment points match the old part.
• Inspect cable insulation for damage, kinks or abrasions.
• Verify that the contacts in the connectors are not corroded, loose or mechanically damaged.
• Compare the product numbers on the original and new part.

2) Necessary tools and materials

• Common workshop hand tools
• Tools for removing plastic covers and upholstery
• Flashlight
• Cleaning agent for electrical contacts
• Protective gloves
• Tie straps or original fasteners if needed to guide the bundle

3) Step-by-step assembly procedure

1. Turn off the ignition and disconnect the battery before starting work.
2. Access the seat area and existing harness by removing covers or other obstructions.
3. Carefully document the routing of the original harness, the position of the connectors and the method of attachment.
4. Disconnect the individual connectors of the old harness carefully so as not to damage the latches.
5. Release the harness from all brackets, clips and guides.
6. Compare the removed part with the replacement part, especially the layout of branches, connectors and fixings.
7. Sit the new bundle in the same route as the original piece, making sure it is not pinched or over-tensioned.
8. Plug all the connectors into their corresponding places and check for a proper click.
9. Fix the bundle in the holders and clips so that it does not rub against the surrounding parts when the seat moves.
10. Reinstall all removed covers and other interior parts.
11. Connect the battery and perform a basic check of the electrical functions related to the seat.
• 4) Post-assembly checks and functional test verification
  • Check the function of seat heating, if it is part of the design.
  • Verify that there are no intermittent contacts when the seat moves after assembly.
  • Check that the wiring does not rub anywhere, is not in tension and does not interfere with moving parts.
  • After a short operational verification, recheck the fit of the harness and connectors.

  5) The most common assembly mistakes + how to avoid them

  • Swapping connectors – mark or photograph everything before disconnecting.
  • Insufficient fixing – use all available brackets and clips.
  • Damage to the connector latches – do not disconnect the connectors by force, but carefully after releasing the fuses.
  • Assembly without checking the condition of the contacts – before connecting, check the cleanliness and mechanical condition of all connections.

  Reasons why the part is damaged

  • Repeated strain on the wiring when moving or using the seat
  • Breaking of wires in places of frequent bending
  • Insulation damage by rubbing against surrounding parts
  • Mechanical damage to connectors during careless disassembly
  • Moisture, oxidation of contacts or contamination of electrical connections
  • Unprofessional intervention in the electrical installation of the vehicle
  ]]>