Description
BSI VALEO SYLEA BOITE M2 CITROEN PEUGEOT with reference numbers 9642409780 73006112. If you are not sure about compatibility with your vehicle, write the VIN number in the order note and we will check the compatibility of the part with your vehicle. How to replace the BSI unit? Since it is a part of the vehicle’s electronic control system, we recommend installation of the BSI only by an authorized technician who will be able to program and set all functions of the new vehicle. SOFT: V8.2 HARD: PR4
Overview
BSI Valeo Sylea Boîte M2 is a central body control module used on a range of Citroën and Peugeot light commercial models. The unit manages comfort and body functions such as central locking, interior and exterior lighting, wipers, alarm and convenience relays, as well as communication on the vehicle CAN network. This product is commonly searched by its reference numbers 9642409780 and 73006112.
Compatibility And Fitment
Commonly fitted to Citroën Berlingo and Peugeot Partner models. Always check the part reference numbers against the vehicle’s existing module. Note that exact fitment depends on vehicle equipment level and software/hardware version.
How Replacement Works
Replacement of a BSI is a multi-step procedure that involves mechanical removal and electronic provisioning. Typical steps:
- Disconnect the vehicle battery before starting work to avoid electrical damage.
- Gain access by removing lower dashboard trim panels and the glovebox as required.
- Unplug all electrical connectors and remove mounting screws securing the BSI.
- Install the replacement unit, secure mechanically and reconnect connectors.
- Provision the unit: cloning of immobilizer and configuration data or coding through dealer-level diagnostic tool is usually required (see Installation And Coding – Important below).
- Reconnect the battery and perform a full functional check of comfort and safety systems.
Technical Information
- Manufacturer: Valeo
- Model: BSI Sylea Boîte M2
- Product Codes: 9642409780, 73006112
- Other Numbers: SOFT: V8.2; HARD: PR4
Installation And Coding – Important
- The unit is used and is “paired” with the original vehicle (VIN/PIN/keys).
- Options to commission the unit:
- 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).
- Always disconnect the battery before removal/installation and follow the manufacturer’s procedures to avoid damage to the unit.
Recommendations For Installation
Perform the reprogramming or cloning on a stable power supply and with the correct diagnostic software. If transferring immobilizer data, ensure keys and PIN information are available. Use ESD-safe practice and avoid forcing connectors. After installation, verify central locking, lighting, alarms, dashboard warnings and CAN-bus communication to confirm correct operation.
Most Common Reasons For Failure
BSI units typically fail due to:
- Water ingress or moisture exposure causing corrosion of electronic components.
- Voltage spikes, jump-starting or incorrect battery reconnection leading to component damage.
- Broken solder joints and connector corrosion after long service, especially in high-vibration environments.
- Internal memory or firmware corruption following electrical faults.
Why Choose This Unit
Reference numbers 9642409780 and 73006112 identify this Valeo BSI Sylea Boîte M2 unit for targeted fitment. For professional mechanics and competent DIYers familiar with PSA diagnostics, this unit restores full body control functionality when matched and provisioned correctly.
