This genuine BSI (Body System Interface) unit BSI04EV K05-00 from Johnson Controls is designed for select Stellantis vehicles and is commonly referenced by part numbers 9664059180, 02 6580SP, 1663371880 and 6570A0. Intended for professional workshops and experienced DIY mechanics, this unit manages multiple comfort and body electronics functions — from interior lighting and locking to CAN bus communication — making it a critical component for vehicle electrical stability and convenience features.

Technical Information

• Manufacturer: Johnson Controls
• Model: BSI04EV K05-00
• Product Codes: 9664059180, 02 6580SP
• Other Numbers: 1663371880, 6570A0
• Common Fitment: Peugeot 308, Citroën C4 (check printed codes against your original unit)

Compatibility And Application

This BSI unit is used on certain Citroën and Peugeot models. It is typically a direct-fit replacement when the printed part numbers match. The unit governs comfort functions, central locking, alarm interfaces and acts as a gateway on the vehicle CAN network. Because BSI variants differ by software/hardware revision, always confirm the part code on the original unit before installation.

How To Replace

Replacing the BSI requires careful handling and basic electrical skill:

• Disconnect the vehicle battery before any work to avoid short circuits and data loss.
• Access the unit (usually located behind the glove box or under the lower dashboard on the passenger side depending on the model).
• Remove trim panels and fasteners, then carefully unplug all connectors from the BSI.
• Unscrew the unit and install the replacement in the reverse order. Ensure connectors are fully seated and fasteners torqued appropriately.
• After mechanical replacement, coding or data transfer may be required to restore full functionality.

Installation And Coding – Important

– The Unit Is Used And Is “Paired” With The Original Vehicle (VIN/PIN/Keys).

– Options To Make Operational:

1. Kloning Data From The Old Unit (EEPROM/Flash) – After Cloning The Unit Is Plug And Play.
2. 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).

– Always Disconnect The Battery Before Removal/Installation And Follow Manufacturer Procedures To Avoid Damaging The Unit.

Reasons For Failure

• Moisture Ingress And Corrosion Leading To Short Circuits Or Connector Damage.
• Thermal Stress And Ageing Causing Solder Joint Cracks Or Component Failure.
• Voltage Spikes Or Incorrect Jump-Starting That Damage Electronic Components.
• Faulty Relays Or Wear Of Internal Components Causing Intermittent Faults.
• Poor Grounding Or Water-Damaged Connectors Producing CAN Bus Errors.

Installation Recommendations

• Perform Replacement In A Dry, Clean Environment To Avoid Contamination.
• Use Proper Tools And Antistatic Precautions When Handling The Unit.
• If Cloning Or Coding Is Required, Use Official PSA Diagnostic Tools (DiagBox/Lexia/PP2000) Or Entrust The Task To A Qualified Workshop.
• Verify All Fuses And Wiring For Underlying Faults That May Have Caused The BSI Failure To Prevent Repeat Damage.

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If you’re searching for a reliable and high-quality replacement part for your Citroën or Peugeot vehicle, the BSI04EV K05-00 unit is an excellent choice to restore your car’s electronic systems. Originally from a 2010 Peugeot 308, this control module guarantees compatibility and functionality.

Function and Importance

The BSI (Built-in Systems Interface) unit is a crucial component of your vehicle’s electronic system, managing essential comfort features such as electric windows, central locking, and other integrated functions. Being a key electronic control module, selecting a reliable BSI unit like this one ensures smooth and trouble-free operation of your vehicle.

Technical Information

Manufacturer: Johnson Controls
Model: Peugeot 308
Product Codes: 9664059180, 026570A, 1663371880, 6580SP
Additional Numbers: 6580SP

This unit is specifically designed for Citroën and Peugeot models, providing a high level of compatibility and performance.

Installation and Reliability

By purchasing this BSI unit, you obtain not only a reliable spare part but also a solid foundation for the long-term secure functionality of your vehicle. Due to the complexity of the electronic systems involved, professional installation is recommended to ensure full and proper operation of all vehicle functions.

Why Choose This BSI Unit?

Restore your vehicle’s comfort and safety with the BSI04EV K05-00 unit. Balancing quality, functionality, and price, it represents a worthwhile investment for car repairs. Its popularity among professional mechanics and DIY enthusiasts alike proves its reliability and effectiveness as a replacement part.