Description
Immobilizer Transponder Antenna For Citroën And Peugeot Vehicles With Multiplex Network
Product Overview
This immobilizer transponder antenna is designed for Citroën and Peugeot vehicles equipped with a multiplexed network. It reads the transponder chip in the key or key‑fob and relays the signal to the vehicle’s immobilizer control unit, allowing engine start when a valid key is detected. Ideal for professional garages and DIY mechanics who search by OE number, the unit is commonly referenced under part numbers 9641551180 and 616076.
Application And Compatibility
Suitable For A Range Of Citroën And Peugeot Models Including (Examples):
- Citroën C3 II, C4 I, C4 Picasso, C4 Grand Picasso, C‑Elysée, Berlingo III
- Citroën Xsara, Xsara Picasso
- Peugeot 206, 206+, 207, 308 I, 407, Expert III
Always search by product code (9641551180 / 616076) to speed up compatibility checks. Location And Fitment May Vary Between Models—Typically Mounted Around The Ignition Barrel Or Integrated Near The Steering Column/Steering Lock Assembly.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Immobilizer Transponder Antenna
- Product Codes: 9641551180, 616076
- Additional Numbers: 616076, 9641551180
Function And Benefits
The Transponder Antenna Detects The Passive Transponder Inside The Key And Sends The Identifier To The Immobilizer Control Unit. A Correctly Functioning Antenna Is Essential For Reliable Key Recognition, Quick Engine Start, And Preventing False Immobilizer Faults. Benefits Include Simple Plug‑In Replacement On Many Vehicles, Restoration Of Normal Key Recognition, And Compatibility With Original OE Wiring And Connectors.
Installation Recommendations
- Disconnect The Battery Before Starting Work To Avoid Short Circuits And Potential Damage To Electronic Modules.
- Remove Steering Column Trims Or Lower Dash Panels Carefully Using Trim Tools To Avoid Breakage.
- Unplug The Antenna Connector And Release Any Clips Or Screws Holding The Antenna Ring Or Housing.
- Fit The New Antenna In The Exact Position And Orientation As The Old Unit—Transponder Detection Is Sensitive To Distance And Alignment With The Key.
- Secure Connectors And Fasteners, Reassemble Trim, Reconnect Battery, And Verify Key Recognition By Turning The Ignition And Checking For Immobilizer Warning Lights.
- Recommended Tools: Trim Removal Tools, Torx/Screw Drivers, Multimeter For Signal/Continuity Checks.
Why The Part Most Commonly Fails
- Connector Corrosion Or Water Ingress Causing Intermittent Signal Loss.
- Physical Damage From Impact Or During Steering Column Repair/Replacement.
- Wear Or Breakage Of The Antenna Coil Or Internal Wiring Over Time.
- Incorrect Positioning After Previous Repairs Resulting In Poor Key Detection.
- Short Circuits Or Electrical Faults Upstream In The Wiring Harness Affecting Communication With The Immobilizer Unit.
Practical Tips For Diagnostics
- Check For Continuity And Proper Power/Sensor Signal At The Connector Before Replacing The Antenna.
- Inspect Wiring Harness And Plugs For Corrosion, Bend Breaks, Or Pin Damage.
- Test With A Known Good Key Or Spare Key To Eliminate Key Transponder Failure From The Symptoms.
- After Replacement, Confirm That The Immobilizer Light Goes Out And The Engine Starts Reliably With The Vehicle Keys.
Search And Ordering Advice
Customers Frequently Search By OE Numbers 9641551180 And 616076—Include These Codes In Your Search To Find The Correct Unit Faster. Suitable For Workshop Replacement And Recommended For Technicians Who Require A Direct, Plug‑In Fitment With Original Connectors.
