Description
BSI Sylea COM 2000 control unit for Peugeot 307 vehicles.
Product Overview
The BSI Sylea COM 2000 is the body control and comfort module used in Peugeot 307 models. It manages central locking, interior and exterior lighting logic, wipers, alarm/immobilizer communication, remote control receiver, power windows, convenience functions and serves as a communication gateway on the vehicle network. This part is commonly searched by its product codes and is intended for professional mechanics and experienced DIYers who service Peugeot 307 electrical systems.
Technical Information
- Manufacturer: Stellantis (Citroën/Peugeot)
- Model: Peugeot 307
- Product Codes: 9636760580, 9644098180
- Other Numbers: 658094, 6580HL, NFP
Compatibility And Application
Designed for Peugeot 307 vehicles as the comfort/body control interface. Fits standard BSI Sylea COM 2000 applications used on a range of 307 trims where the listed product codes are specified. Always verify the code printed on the original unit before replacement to ensure correct match.
Function And Symptoms Of Failure
The BSI controls convenience and safety-related electrical functions and acts as a central communication node. Typical symptoms of a failing BSI include intermittent or total loss of central locking, non-working interior lights, malfunctioning wipers or indicators, immobilizer faults that prevent engine start, dashboard warning lights, or multiple unrelated electrical failures. Because the BSI interfaces with many systems, a fault often presents as several simultaneous issues.
Replacement Procedure
- Disconnect the negative battery terminal before any work to avoid damage to electronics.
- Access the unit (usually behind the glovebox or lower dash panel) and remove trim panels as required.
- Unbolt the BSI, carefully unplug all connectors and remove the unit.
- Install the replacement unit by reversing the removal steps. Do not connect the battery until the unit is properly seated and all connectors are fully engaged.
- After fitment, cloning or coding is normally required to restore immobilizer and vehicle-specific settings (see Installation And Coding – Important).
Installation And Coding – Important
- The unit is used and is “paired” with the original vehicle (VIN/PIN/keys).
- Options to put the unit into service:
- 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 the manufacturer’s procedure to avoid damaging the unit.
Installation Recommendations
Handle connectors and PCB area carefully to prevent static or mechanical damage. Inspect connector pins and wiring for corrosion or burns before installation. If the original unit shows water marks or corrosion, repair the surrounding harness and fuses to prevent reoccurrence. After coding or cloning, verify central locking, immobilizer recognition and all comfort functions. Use original-style fasteners and ensure the unit is mounted securely to avoid vibration-related faults.
Most Common Failure Reasons
- Water Ingress Or Moisture Leading To Corrosion Of Connectors Or PCB Traces.
- Electrical Overvoltage, Short Circuits Or Poor Battery/Charging System Conditions Causing Component Damage.
- Damaged Or Corroded Connector Pins Resulting In Intermittent Contacts.
- Memory Corruption Or Software Inconsistencies After Improper Battery Disconnection Or Faulty Repairs.
- Internal Component Wear Or Failure Of Power Relays/Control Electronics.
Notes For Mechanics And DIYers
Because the BSI Sylea COM 2000 integrates immobilizer and convenience functions, correct handling and professional coding/cloning are critical. When replacing the unit, plan for the necessary diagnostic session to restore vehicle-specific settings and key adaptation if cloning is not performed.
