Description
Antenna switching unit for Citroën and Peugeot vehicles.
This antenna switching unit is a direct-fit electronic component designed for Citroën and Peugeot models that use a powered or amplified antenna system. It controls the switching and supply of the antenna circuit, enabling proper extension/retraction of motorised masts and correct routing of the antenna signal to the radio and amplifier. The part is often searched by reference numbers 9655888380 or 6561EC, making it easy for technicians and DIY enthusiasts to find and order the correct unit.
Suitable For: Citroën C4, Citroën C5, Citroën C6, Citroën C8, Peugeot 206, Peugeot 307, Peugeot 407, Peugeot 607, Peugeot 807. Use these model names and part numbers when searching online or cross-referencing parts catalogs to improve findability.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Fits select Citroën and Peugeot models listed above
- Product Codes: 9655888380, 6561EC
- Other Numbers: 6561EC | 9655888380
Function and Symptoms
The unit performs switching of the antenna circuit and supplies power to a motorised antenna mast or inline amplifier. Common symptoms of a faulty antenna switching unit include: the antenna mast failing to extend or retract, intermittent antenna movement, loss of radio reception or weak signal, and in some cases a blown fuse or erratic radio behaviour. Diagnosing these symptoms alongside visual checks of wiring and fuses usually helps pinpoint the module as the cause.
Installation Recommendations
- Safety First: Disconnect the vehicle battery before starting work to avoid short circuits and protect electronic modules.
- Access: Remove required interior trim panels to reach the antenna control unit—location varies by model (commonly near the radio, under trim panels, or close to the antenna base). Refer to vehicle-specific repair manual for precise location.
- Removal: Unplug connectors, note connector orientations, and remove any fixing screws or clips. Inspect connectors and wiring for corrosion or damage while the unit is accessible.
- Fitment: Install the new unit in the same position, secure fasteners, reconnect connectors firmly, and restore battery power.
- Testing: Verify correct antenna extension/retraction and check radio reception. Confirm no related fault codes are present on vehicle diagnostic equipment.
Why This Part Fails Most Often
- Moisture Ingress and Corrosion: Water penetration into connectors or the unit housing causes corrosion, loss of contact and eventual electrical failure.
- Connector and Wiring Damage: Chafing, broken wires or poor connector seating lead to intermittent operation or total failure.
- Mechanical Load and Motor Wear: Repeated use of motorised masts can overload switching components over time, or the mast motor itself can develop faults that stress the switch unit.
- Electrical Faults: Short circuits, failed amplifiers or blown fuses elsewhere in the antenna circuit can damage the switching module.
For installers: check surrounding connectors, fuses and the antenna mast/mechanism when replacing the unit to avoid immediate recurrence of the fault. Using the correct part numbers (9655888380, 6561EC) ensures compatibility with the listed Citroën and Peugeot models.
