Description
Transponder antenna for immobilizer for Peugeot and Citroën vehicles. For vehicles without a multiplexed network.
Product Overview
This transponder antenna (immobilizer antenna ring) is designed to read the radio-frequency signal from the key transponder and relay it to the vehicle’s immobilizer system. It is a common replacement part for older Peugeot and Citroën models that do not use a multiplexed (CAN) network for body electronics. Technically simple but critical for vehicle start authorization, the antenna ensures the key is recognized before the engine control allows fuel and ignition systems to operate.
Fitment And Compatibility
Commonly fitted to a range of Peugeot and Citroën models, typically around the steering column/ignition barrel. Models include (but are not limited to): Peugeot 206, 307 (I), 406; Berlingo I and II; Partner I and II; Expert II; Jumpy II; Xsara; Xsara Picasso. The part is frequently searched by its reference numbers 9632487880 and 616069.
Symptoms And Diagnostics
Typical symptoms of a faulty immobilizer antenna:
- Engine does not crank or cranks but immediately cuts out.
- Immobilizer or key warning lamp stays on or flashes abnormally.
- Vehicle fails to recognize the transponder key; only emergency start (if available) or no start is possible.
Basic diagnostic checks before replacement: try a known-good key; visually inspect connector and wiring for corrosion or damage; check for continuity in the harness and secure connector mating. If you have a diagnostic tool, read immobilizer-related fault codes and live data to confirm the antenna is not detecting the key signal.
How To Replace
Replacement is straightforward for an experienced mechanic or competent DIYer with basic tools:
- Disconnect the negative battery terminal before starting work to avoid electrical damage and false fault codes.
- Remove steering column lower covers to access the ignition barrel and antenna ring.
- Unplug the antenna connector and remove mounting clips or screws securing the antenna ring.
- Install the new antenna in the same orientation, secure it, and reconnect the wiring harness.
- Reassemble column trim, reconnect the battery, and test with the vehicle keys. Verify that the immobilizer light behaves normally and the engine starts with the key(s).
Installation Recommendations
Always disconnect the battery before disassembly. Handle the antenna and connector gently—avoid sharp bends in the wiring and ensure connectors are clean and fully seated. After replacement, test with all vehicle keys. If the vehicle does not accept the key after fitting a new antenna, re-check wiring and connector integrity; on some vehicles further immobilizer initialization or diagnostic checks may be required by a specialist with appropriate PSA diagnostic equipment.
Why This Part Fails Most Often
- Connector Corrosion Or Poor Contact: Exposure to moisture or age-related oxidation can interrupt signal transmission.
- Wiring Damage: Chafing, pinching during previous repairs, or accidental damage during steering column work.
- Mechanical Damage: Broken antenna ring or mounting clips from collisions or rough removal/installation.
- Electrical Faults: Short circuits or voltage spikes can damage the antenna electronics.
- Wear And Environmental Effects: Long-term heat, vibration, or water ingress can degrade performance.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Peugeot 206, 307 (I), 406; Berlingo I / II; Partner I / II; Expert II; Jumpy II; Xsara; Xsara Picasso (For Vehicles Without Multiplexed Network)
- Product Codes: 9632487880, 616069
- Additional Numbers: NFP
Final Notes
This part is commonly searched and ordered by its reference numbers 9632487880 and 616069. If you perform the replacement yourself, follow safe working practices around the steering column and electrical system. For complex immobilizer faults, advanced diagnostics or specialist intervention may be required.
