Description
Intelligent BSI control unit by Johnson Controls for Citroën and Peugeot vehicles. HARD 28119248-3C
Product Overview
This BSI (Body Systems Interface) module BSI04EV K04-00 is a comfort control unit designed for Citroën and Peugeot vehicles. It manages multiple body and comfort functions such as central locking, interior lighting, wiper control, dashboard indicators and acts as a gateway on the vehicle network. Suitable for professional workshops and competent DIY mechanics who regularly service Stellantis group models. Common search queries include part numbers 9678477180, 1613316380 and 1663366080.
Key Functions
- Central Locking And Remote Key Management
- Immobilizer Interface And Key Recognition
- Control Of Interior Lighting And Courtesy Systems
- Wiper And Washer Logic
- Dashboard Warning Lights And Instrument Communication
- CAN Bus Gateway Between Subnets And Sensors
Compatibility
Typical Fitment: Citroën C4 Picasso, Citroën C5, Peugeot 3008 (First Generation), Peugeot 5008 (First Generation). Check the product codes below to confirm match with the original unit on the vehicle.
Technical Information
- Manufacturer: Johnson Controls
- Model: BSI04EV K04-00
- Product Codes: 9678477180, 1613316380, 1663366080
- Additional Numbers: HARD 28119248-3C
Installation And Coding – Important
- The Unit Is Used And Is “Paired” With The Original Vehicle (VIN/PIN/Keys).
- Options To Make The Unit Operational:
- Cloning Data From The Old Unit (EEPROM/Flash) – After Cloning The Unit Is Plug And Play.
- Virginization And Subsequent Initialization/Telecoding Via DiagBox (Or Online) + Key Adaptation.
- Recommended To Be Performed By A Specialist With PSA Service Equipment (DiagBox/Lexia/PP2000).
- Before Removal/Installation Always Disconnect The Battery And Follow The Manufacturer Procedure To Avoid Damage To The Unit.
Installation Recommendations
- Disconnect Negative Battery Terminal Before Starting Work.
- Remove Interior Trim Panels To Access The BSI Module Respecting Clips And Fasteners.
- Label And Photograph Connector Positions If Needed To Ensure Correct Reassembly.
- Gently Unplug Multiway Connectors; Avoid Pulling Wiring Looms Directly.
- Protect The Module From Static And Moisture When Handling. Reinstall Using Factory Torque Values Where Specified.
- After Mechanical Fitment, Perform Either A Clone Or A Proper Initialization/Coding Procedure With Appropriate Diagnostic Tools.
Why This Part Commonly Fails
- Water Ingress And Corrosion From Moisture Or Leaks Causing Connector And Board Damage.
- Electrical Surges Or Short Circuits In The Vehicle Wiring Causing Component Failure.
- Broken Or Corroded Connector Pins Leading To Intermittent Faults.
- Failed Solder Joints Or Aging Electronic Components After Years Of Service.
- Symptoms Often Include Central Locking Failure, No Key Recognition, Intermittent Dashboard Warnings, Nonfunctional Comfort Features Or Starting Problems.
Notes For Mechanics And DIY Enthusiasts
When replacing a BSI unit, confirm the exact part codes and understand whether cloning or coding is required for immediate operation. Keep diagnostic equipment ready to clear faults and to adapt keys if the unit is virginized. Use this module as a direct replacement only when the listed product codes match the original unit.
