This BSC A02-00 Siemens VDO body control module (BCM) is a direct-fit control unit removed from a Peugeot 407. It controls multiple vehicle body functions and is identified by common PSA product codes listed below. Ideal for professional workshops and experienced DIY mechanics looking for an exact replacement unit for vehicles using the same BSC specification.

Product Overview

The BSC (Body System Controller) A02-00 is a central electrical module that manages lighting, central locking, interior electronics, alarm and convenience functions depending on vehicle configuration. Manufactured by Siemens VDO for Stellantis (Citroën/Peugeot), this unit is often referenced by part numbers to ensure correct fitment. Replacing a faulty BSC restores reliable operation of body functions and eliminates faults caused by intermittent signals or failed outputs.

Technical Information

• Manufacturer: Siemens VDO
• Model: BSC A02-00
• Product Codes: 9656148080, S120017003I
• Other Numbers: 6580S9, 6580XF, 9688EL

Compatibility and Fitment

Unit Removed From: Peugeot 407. The module is used across certain PSA/ Stellantis vehicles that share the same BSC A02-00 specification and product codes. Always compare the listed product codes with the unit fitted to the vehicle to confirm physical and electrical compatibility.

Installation

Installation should be performed by a qualified technician or an experienced DIY mechanic familiar with vehicle electrical systems. Typical replacement steps:

• Disconnect the negative battery terminal before starting to avoid short circuits and protect the electronics.
• Remove any trim panels and securing fasteners to access the module—location varies by model (commonly under dashboard or glovebox area).
• Unplug connectors carefully, noting locking tabs to avoid damage. Remove the old unit and fit the replacement in the reverse order.
• After mechanical installation, unit commissioning/coding may be required for full functionality.

Mounting and Coding – Important

• The Unit Is Used And Is “Paired” With The Original Vehicle (VIN/PIN/Keys).
• Options For Commissioning:
  1. Cloning 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 The Manufacturer’s Procedure To Avoid Damaging The Unit.

Why This Part Fails

Common failure causes for BSC/BCM units include water ingress and corrosion, connector or wiring damage, solder joint fatigue from thermal cycling, and voltage spikes or poor battery connections. Symptoms of a failing unit are intermittent operation of lights, central locking faults, warning lamps, or loss of certain comfort functions.

Service Recommendations

When replacing the BSC unit, inspect wiring harnesses and connectors for corrosion or damage and repair as necessary. If possible, clone the original module data to the replacement to preserve vehicle-specific settings and minimize coding requirements. If virginizing and coding is necessary, perform using appropriate PSA diagnostic tools and follow prescribed procedures.

This listing includes the unit as described and provides the product codes used for identification. For workshop use, keep the original unit and connectors available during commissioning to assist with cloning or key adaptation if required.