Citroen C4 Picasso Lid Harness 9658919280 6534QZ

Description

Tailgate assembly for Citroen C4 Picasso cars of the first series
With glass and lid switches and license plate light
With hinged back glass

Part description

This used lid harness is intended for Citroën C4 Picasso cars and is one of the important electrical components ensuring the correct functioning of the elements in the rear hatch. It includes wiring for the glass and lid switches as well as the license plate lighting, which makes it a practical part when repairing damaged or non-functioning original wiring.

In the case of cable harnesses, the frequent reason for replacement is a break in the wires, fatigue of the material in the bend or a defect in the connectors. If you are looking for a part by number, the designations 9658919280 and 6534QZ are particularly important.

Technical information

• Manufacturer: Stellantis Citroën Peugeot
• Model: Citroën C4 Picasso first series
• Other numbers: 9658919280, 6534QZ

Product codes

• Product codes: 9658919280, 6534QZ
• Models from labels/backgrounds: Citroën C4 PICASSO

Installation recommendations

Generally/typically for this type of part, care must be taken when replacing the wiring harness in the lid due to the plastic linings, grommets and connectors. The exact steps may vary depending on the specific model of the car.

1) Before assembly

• Check that the part codes 9658919280 and 6534QZ match the removed piece.
• Compare the length of the bundle, the number of connectors, their shape, the wiring and the location of the branches.
• Check the condition of the insulation, grommets, fit and contacts in the connectors.
• Check that the wires are not broken, dented, chafed or improperly repaired.

2) Necessary tools and materials

• Basic set of hand tools
• Plastic levers for panel removal
• Electrical contact cleaner
• Work lighting
• Protective gloves
• Suitable material for gently securing cabling after assembly

3) Step-by-step assembly procedure

1. Secure the vehicle against movement and switch off the ignition.
2. Disconnect the battery to minimize the risk of short circuits when working on the wiring.
3. Remove the inner lining of the rear cover to access the harness and connectors.
4. Document the original wiring, attachment and connection of the connectors.
5. Carefully disconnect all connectors tied to the original harness without pulling on the wires.
6. Release the grommets, clamps and fixing points of the original bundle.
7. Remove the old bundle and compare it to the replacement piece by shape, branching and terminations.
8. Guide the new bundle along the same route as the original part to avoid tension or friction on the edges.
9. Place the grommets correctly and fasten the bundle in all brackets and mounts.
10. Connect the individual connectors and check that they are fully seated.
11. Before closing the panel, check that the wiring is not pinched anywhere and that there is sufficient margin for the movement of the lid.
12. Refit the trim and connect the battery.
• 4) Post-assembly checks and function verification
  • Try the glass switch function.
  • Try the lid switch function.
  • Check the functionality of the license plate lighting.
  • Verify that there is no tension on the wiring when opening and closing the lid.
  • Listen for a loose harness or trim after assembly.

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

  • Swapping connectors – mark or photograph everything before disconnecting.
  • Damage to plastic handles and trim – use suitable plastic levers and do not work with force.
  • Harness pinching when refitting – always check wiring route before flipping trim.
  • Insufficient seating of grommets – can lead to moisture penetration and subsequent electrical faults.
  • Pulling on the wires instead of the connector – there is a risk of loosening or breaking the cable.

  Reasons why the part is damaged

  • Repeated bending of the wiring when opening and closing the back cover
  • Aging of insulation and fatigue of conductors
  • Moisture ingress into connectors or grommets
  • Mechanical damage during panel removal or other repairs
  • Corrosion of contacts causing function failures
  • Incorrect routing or attachment of cabling after previous repair