Description
BSC A02-00 Siemens VDO for Citroën and Peugeot vehicles. It is from a Peugeot 407.
Product Overview
The BSC A02-00 Siemens VDO body control module is a central electrical unit used on Citroën and Peugeot models, originally removed from a Peugeot 407. It manages numerous comfort and body functions and communicates with other vehicle networks via standard automotive buses. This replacement unit is often searched for by its part numbers, so listing key references below will help technicians and DIY enthusiasts find the correct item quickly.
Function And Application
The Body System Controller coordinates body electrical systems such as central locking, interior lighting, convenience relays, and switch logic. It monitors inputs from switches and sensors and drives outputs to actuators and indicators. Proper operation is essential for door functions, alarm/immobilizer interfaces, and some convenience features. In a vehicle electrical architecture it acts as a hub for comfort features and diagnostics.
Replacement Procedure
Basic steps for replacement (general guide for experienced mechanics and competent DIYers):
- Disconnect The Battery: Always disconnect the negative terminal before starting to avoid short circuits and protect electronic modules.
- Access The Unit: Remove interior trim panels or covers to reach the BSC, typically located behind dash panels or under the glovebox depending on model.
- Unplug Connectors: Carefully release locking tabs and disconnect multi-pin connectors. Inspect connectors for corrosion or damaged pins.
- Remove Fasteners: Unscrew the mounting bolts and extract the module. Note the orientation and mounting position for reinstallation.
- Install Replacement: Fit the new unit, secure fasteners, reconnect connectors, and reinstall trim.
- Reconnect Battery And Code If Required: Reconnect the battery and follow coding/initialization procedures as needed (see Installation And Coding – Important below).
Installation 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 Manufacturer Procedures To Avoid Damage To The Unit.
Most Common Failure Causes
Failures Typically Result From Moisture Ingress, Corrosion Of Connectors, Heat Stress, Vibration, Or Electrical Overloads/Short Circuits. Solder Joint Cracks And Component Ageing Also Contribute To Intermittent Faults. Symptoms May Include Malfunctioning Locks, Interior Lights, Or Erratic Central Convenience Functions.
Recommendations For Installation
Inspect Connectors And Wiring Harnesses For Corrosion Or Damage Before Fitting The Replacement. Clean And Protect Electrical Contacts With Appropriate Contact Cleaner And Dielectric Grease If Needed. If Cloning Is Not Performed, Prepare For Coding/Initialization Steps With Proper Diagnostic Tools. Ensure All Ground Points Are Clean And Secure To Avoid Electrical Noise Issues.
Technical Information
- Manufacturer: Siemens VDO
- Model: BSC A02-00 (Removed From Peugeot 407)
- Product Codes: 9656148080, S120017003I
- Additional Numbers: 6580S9, 6580XF, 9688EL
Notes For Buyers
Search By Part Number For Faster Matching (E.G. 9656148080 Or S120017003I). Suitable For Technicians And Experienced DIYers Who Can Perform Mechanical Removal And, Where Necessary, Cloning Or Coding With Suitable PSA Diagnostic Equipment.
