Description
BSC A01-00 Siemens VDO for Citroën C4, C5 II, C8, Jumpy and Peugeot 307, 308, 407, 807, Expert
This BSC A01-00 Siemens VDO body control module (BCM) is designed for a range of Stellantis vehicles and handles multiple comfort and body functions. The unit centralizes control of lighting, central locking, interior electronics and communication with other ECUs, making it a key component for reliable vehicle electrics. Ideal for professional workshops and experienced DIYers looking for a direct-fit replacement by part number, this module is commonly searched under OEM codes and cross-reference numbers.
Technical information
- Manufacturer: Siemens VDO
- Model: BSC A01-00
- Product Codes: 9656147980, 9688EL
- Other Numbers: S120017004H, S120017004I
Compatible Models
Citroën C4; Citroën C5 II; Citroën C8; Citroën Jumpy; Peugeot 307; Peugeot 308; Peugeot 407; Peugeot 807; Peugeot Expert
Function And Benefits
The BSC (Body System Controller) manages body-related electrical systems: interior and exterior lighting, central locking, electric windows, alarm/immobilizer interface, wiper control and message relay across the vehicle CAN network. Replacing a faulty module restores correct operation of these systems, resolves intermittent electrical faults and removes related dashboard warnings.
How To Replace
- Disconnect the vehicle battery before any work to avoid short circuits and protect electronic components.
- Remove required interior trim panels to access the BSC mounting location (consult vehicle repair manual for exact position).
- Unplug all wiring connectors carefully, releasing any locking tabs and noting connector orientation; avoid pulling on wires.
- Unbolt the module from its bracket, replace with the new unit and refit connectors ensuring secure engagement.
- After mechanical replacement, perform necessary coding/pairing or cloning as described below to restore full functionality.
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 the manufacturer procedure to avoid damaging the unit.
Most Common Failure Causes
- Water ingress or moisture causing corrosion of connectors or internal circuits.
- Electrical surges from jump-starting, bad alternator regulation or poor grounding.
- Thermal stress and age-related solder joint cracks leading to intermittent faults.
- Damaged or corroded connector pins and wiring harness faults.
Service Life And Practical Notes
There is no fixed replacement interval; lifespan depends on vehicle use and environment. Failures are more frequent on older vehicles (often after several years) or where the module is exposed to moisture or repeated electrical stress. When installing, inspect connectors and harness for damage and ensure a dry, secure mounting location to maximize longevity.
Recommendation For Fitment
Confirm part numbers (listed above) against the unit being replaced. For reliable commissioning and key immobilizer handling, have cloning or coding performed with PSA diagnostic tools. After replacement, verify all related body functions (locks, lights, windows, alarm) and clear any stored fault codes.
