Description
BSM DELPHI L11-00 for CITROËN and PEUGEOT vehicles. Unit tested and fully functional. It may have a cracked mounting tab on the housing which does not affect function.
The Delphi BSM L11-00 is a body system module designed for several Citroën and Peugeot models. Supplied here with reference numbers 9661087080 and 6500CK, this control unit centralizes numerous vehicle electrical functions — from lighting and central locking to wiper and interior circuits. Because many technicians and DIYers search by part number, the main references are highlighted to help you find the correct replacement quickly. The unit is suitable for professional workshops and competent home mechanics who perform electronic repairs and replacements.
Application
Common Fitment: Peugeot 307. Also Used On: Select Citroën and Peugeot models that employ the L11-00 BSM variant. Always check physical part numbers stamped on the unit against the vehicle’s existing module.
Technical Information
- Manufacturer: Delphi
- Model: BSM L11-00
- Product Codes: 9661087080, 6500CK
- Additional Numbers: BSM L11-00 (unit designation)
Function And Features
The BSM (Body System Module) acts as a centralized control unit for non-engine electrical systems. Typical responsibilities include control of exterior and interior lighting, central locking, electric windows, wipers, indicator flashers, and distribution of switched power to several circuits. Replacing a faulty BSM restores control and correct operation to these systems.
Recommended Installation
Basic Steps: Disconnect the negative battery terminal before starting. Locate the BSM—commonly found behind the glovebox or under the passenger-side lower dashboard. Remove the trim and mounting screws, then carefully unplug electrical connectors. Fit the replacement, secure mounting points, reconnect connectors and the battery, then verify all related vehicle functions.
Notes For Technicians: Use trim tools to avoid damaging panels, a multimeter to check connectors and fuses, and T20–T30 Torx or equivalent fasteners depending on vehicle. After mechanical replacement, some vehicles may require configuration or coding of the module using a diagnostic tool to restore personalized settings and immobilizer/central locking synchronization. If unfamiliar with coding procedures, perform the electrical replacement and verify functions in a controlled workshop environment.
Most Common Failure Causes
BSM failures are most often caused by moisture ingress and connector corrosion, electrical surges (short circuits or faulty alternator/regulator), thermal stress and age-related degradation of solder joints or components. Physical damage to mounting tabs is common on older units but typically does not impair electrical function, as noted for this item.
Why Choose This Unit
This Delphi BSM L11-00 is a practical option when the original module shows symptoms such as intermittent lighting, central locking faults, failing wipers, or multiple unrelated electrical errors. Provided as a fully functional unit, it helps restore reliable electrical system control and reduces vehicle downtime for both professional garages and experienced DIY mechanics.
