Description
Rear Door Window Switch For Citroën C4 Picasso And Grand Picasso First Generation
This rear door window switch is designed for first‑generation Citroën C4 Picasso and Grand Picasso models. It replaces faulty or worn door switch modules that control the power window motor on the rear doors. The unit is suitable for professional workshops and experienced DIY mechanics who service Stellantis (Citroën/Peugeot) vehicles and often search by part number: 96639378ZD, 96542245XT, 8153H3, 6554YJ.
Function And Benefits
The switch assembly provides reliable electrical control of the rear door window motor, sending on/off and position commands to the window regulator. A correctly functioning switch ensures smooth window operation, prevents intermittent contacts, and restores convenience features such as one‑touch or lockout (if applicable on the vehicle). Replacing a worn switch improves user comfort and avoids further strain on the window motor and regulator.
Compatibility And Fitment
- Citroën C4 Picasso First Generation (approx. model years 2006–2013)
- Citroën Grand Picasso First Generation (approx. model years 2007–2013)
- Fits Rear Door Window Switch Position; check printed product codes to match the exact variant
Technical Information
- Manufacturer: Stellantis (Citroën/Peugeot)
- Model: Citroën C4 Picasso / Grand Picasso (First Generation)
- Product Codes: 96639378ZD, 96542245XT
- Other Numbers: 8153H3, 6554YJ
Recommended Installation
- Prepare Tools: Trim removal tools, Torx/Phillips drivers, electrical contact cleaner (optional).
- Safety First: Disconnect the vehicle battery before beginning to avoid short circuits and accidental window operation.
- Remove Door Trim: Carefully pry off the door panel and detach any retaining clips to access the switch assembly.
- Disconnect Connector: Unplug the electrical connector from the switch. Inspect wiring and connector for corrosion or damage.
- Replace Switch: Remove retaining screws/clips, fit the new switch assembly, and reattach connectors and door trim in reverse order.
- Function Check: Reconnect the battery and verify correct window operation on the replaced switch and master controls. Ensure there is no unusual resistance or noise from the regulator.
- Note For Professionals: Work is straightforward for technicians; keep fasteners and clips organized to ensure factory‑like refitment.
Why The Part Often Fails
- Wear And Tear: Frequent usage leads to internal contact wear and reduced conductivity, causing intermittent or non‑working switches.
- Moisture Ingress: Door moisture and condensation can corrode electrical contacts or the connector pins, causing failures.
- Mechanical Damage: Broken tabs or cracked housings from improper removal or impact can prevent reliable operation.
- Electrical Stress: Short circuits, poor grounding, or a failing regulator motor can overload the switch and accelerate failure.
Who Should Fit This Part
Suitable for experienced DIYers comfortable with interior trim removal and vehicle electrical systems, and for professional mechanics. If wiring or connectors show corrosion, address those issues to ensure a long service life for the new switch.
Replace a faulty rear door window switch with this OE‑referenced unit to restore reliable window control and preserve the original functionality of your Citroën C4 Picasso or Grand Picasso.
