Immobilizer Transponder Antenna Citroën 9649781080 616097

Description

Transponder antenna for immobilizer for Citroën and PEUGEOT vehicles. For vehicles with multiplexed network.

High-quality replacement transponder antenna designed for Citroën and Peugeot models with multiplexed wiring. This immobilizer antenna reads the key transponder signal at the ignition/steering column and transmits it to the vehicle’s immobilizer control unit, allowing reliable recognition of authorized keys. Commonly sought under part numbers 9649781080, 616097 or 6160C1, this unit is a direct-fit choice for workshops and DIY mechanics who need a dependable solution for no-start or key recognition issues.

Features

• Direct Fit For Citroën And Peugeot Vehicles With Multiplexed Network
• OE Reference Numbers Included For Fast Identification (9649781080 / 616097 / 6160C1)
• Compact Design For Easy Installation Around The Steering Column
• Designed To Read Standard Transponder Keys Used By Stellantis
• Ideal For Automotive Technicians And Skilled DIY Enthusiasts

How It Works

The transponder antenna is mounted around the ignition barrel or steering column. When the key is inserted or brought close, the antenna energizes the key’s transponder chip and receives its ID signal. That signal is forwarded to the immobilizer control unit which verifies the key. If The Key Is Recognized, The Engine Management System Is Allowed To Start The Vehicle. If Recognition Fails, The Vehicle May Crank But Not Start Or Show An Immobilizer Warning.

Applications

Suitable For Many Citroën And Peugeot Models Including: 207; 308 I; 407; Berlingo III; C‑Elysée; C3 II; DS3; C4 I; C4 Picasso; C4 Grand Picasso; C5 X7; Expert III. Always Confirm Fitment By Matching The Part Number (9649781080 / 616097 / 6160C1) With The Vehicle Requirement.

Technical Information

• Manufacturer: Stellantis (Citroën / Peugeot)
• Model: Multiple Citroën And Peugeot Models With Multiplexed Network (See Applications)
• Product Codes: 9649781080
• Other Numbers: 616097, 6160C1

Replacement And Installation

• Precautions: Always Disconnect The Battery Before Starting Work To Prevent Electrical Damage Or Airbag Deployment.
• Tools: Trim Tools, Torx/Screwdrivers, Basic Socket Set, Multimeter For Signal Verification.
• Procedure Summary:
  1. Remove Steering Column Trim Panels Carefully To Access The Antenna Assembly.
  2. Unplug The Electrical Connector From The Antenna And Release Any Retaining Clips.
  3. Remove The Old Antenna Assembly And Install The New Unit In The Same Orientation.
  4. Reconnect The Connector, Refit Trim Panels And Reconnect The Battery.
  5. Verify Key Recognition: Insert Known Good Key And Confirm That The Vehicle Recognizes The Transponder And Starts Normally.
• Notes: The Antenna Is Typically A Mechanical/Electrical Part That Does Not Require Coding. If Key Recognition Problems Persist After Replacement, Inspect Wiring, Fuses And The Immobilizer Control Unit.

Why This Part Fails

• Wiring Or Connector Corrosion From Moisture Ingress Around The Steering Column.
• Mechanical Damage During Steering Column Work, Accidents Or Forced Entry Attempts.
• Internal Coil Failure Due To Age Or Electrical Surges.
• Intermittent Faults Often Caused By Loose Connectors Or Damaged Cable Insulation.
• Occasionally The Problem Is The Key Transponder Itself Or The Immobilizer Control Unit Rather Than The Antenna.

Symptoms Of A Faulty Antenna

• Vehicle Does Not Recognize Key Or Shows Immobilizer Warning.
• Engine Cranks But Does Not Start.
• Intermittent Start Problems Or Random Immobilizer Messages.

Additional Recommendations

Search By Part Number (9649781080, 616097, 6160C1) For Fast Replacement Identification. For Reliable Results, Inspect Connectors And Wiring As Part Of Any Diagnostic Or Replacement Job. When Performing Work Near Airbag Components Or Clock Spring Assemblies, Follow Manufacturer Safety Procedures.