Description
BSI BSI04EV K04-00 Johnson Controls Citroën Peugeot
From 2010 Citroën C4 Grand Picasso
BOOT 28120836-4
HARD 28119248-3B
Description
Genuine BSI Body Control Module (BSI04EV K04-00) manufactured by Johnson Controls for Stellantis vehicles. This comfort/electronics control unit manages central locking, interior lighting, alarm, wipers, electric windows, and many vehicle body functions. It is a direct replacement option for vehicles equipped with the BSI04EV hardware version and listed product numbers, commonly found on Citroën C4 Grand Picasso models from around 2010 and other compatible Citroën/Peugeot applications. Technically accurate product codes are included below to help locate the correct unit quickly.
Technical Information
- Manufacturer: Johnson Controls
- Model: Citroën C4 Grand Picasso (2010)
- Product Codes: BSI04EV K04-00, 9664059080, 1663370780, 657064
- Other Numbers: BOOT 28120836-4, HARD 28119248-3B
Installation
Replacement of the BSI requires careful handling and basic electrical skills. Typical steps: disconnect the battery, remove lower dashboard or glovebox trim to access the BSI module, unplug connector(s) and release securing screws, fit the replacement unit in the original position and reconnect harnesses, then secure trim panels. After physical replacement the unit usually requires reconfiguration or cloning to restore full functionality (see Coding section). Always follow manufacturer instructions and safety precautions when working on vehicle electrical systems.
Installation and Coding – Important
- The Unit Is Used And Is Paired With The Original Vehicle (VIN/PIN/Keys).
- Options For Commissioning:
- 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 Technician With PSA Service Equipment (DiagBox/Lexia/PP2000).
- Always Disconnect The Battery Before Removal/Installation And Follow Manufacturer Procedures To Avoid Damaging The Unit.
Mounting Recommendations
- Disconnect The Battery And Wait A Few Minutes Before Starting Work To Prevent Short Circuits.
- Protect The New Unit From Static And Moisture; Handle By The Housing, Not The Connectors.
- Inspect Wiring Harness And Connector Pins For Corrosion Or Damage; Clean Contacts If Necessary.
- If Cloning Is Not Performed, Ensure Proper Initialization/Coding With Compatible Diagnostic Tools.
- Test All Body Functions (Locks, Lights, Wipers, Windows, Alarm) After Installation.
Why The Part Commonly Fails
- Water Ingress Or Moisture Causing Corrosion Of Circuitry Or Connectors.
- Electrical Surges, Short Circuits, Or Faulty Aftermarket Accessories That Overload The Unit.
- Worn Solder Joints Or Component Fatigue Due To Age And Thermal Cycling.
- Connector Damage Or Poor Grounding Leading To Intermittent Faults.
Notes For Mechanics And DIY Enthusiasts
This BSI unit is a critical central module for comfort and body electronics. Because of pairing and coding requirements, professional reprogramming or cloning is often necessary to restore full vehicle functionality. Use the product codes listed above to confirm matching hardware before installation. Replace the unit only when you are confident in diagnostics and have access to appropriate tools, or arrange for coding by a qualified technician.
