Description
Overview
The BSM B2 Delphi body systems module (Part No. 9644038780, alternate 6500Y1) is a used unit supplied with a guarantee of functionality. It is a direct replacement for compatible Citroën and Peugeot vehicles within the PSA group. External bracket damage may be present but does not affect operation.
Features & Benefits
- Guaranteed operational condition
- OEM Delphi design
- Cost-effective repair option for electrical faults
Common Applications
This BSM B2 unit is intended for Citroën and Peugeot vehicles that use the PSA BSM architecture. Always confirm compatibility by matching the OEM part numbers 9644038780 or 6500Y1 with your vehicle VIN or service manual before ordering. If unsure, consult a technician or provide your VIN for verification.
How It Fails
BSM modules commonly fail due to age-related wear, corrosion, moisture ingress, thermal stress, or electrical surges. Typical symptoms include intermittent electrical problems, non-functional interior electronics, control unit warning lights, or erratic behavior of related systems.
Installation & Replacement
Replacement generally requires disconnecting the battery, locating the BSM (often under the dashboard, behind the glovebox, or near the fusebox depending on model), unplugging connectors, removing mounting fasteners, and installing the replacement unit. After installation, reconnect the battery and verify all circuits and functions. Due to safety and programming considerations, installation is recommended for experienced mechanics; competent DIYers should follow the vehicle service manual and safety procedures.
Maintenance Tips
Keep connector contacts clean and dry, protect the module from moisture, and address electrical faults promptly to prolong service life. Regular inspection of wiring looms and grommets helps prevent corrosion and ingress that can lead to failure.
Technical Information:
- Manufacturer: Delphi
- Model: Citroën, Peugeot
- Product Codes: 9644038780, 6500Y1
- Other Numbers: 6500Y1 (alternative code)
Notes
This is a used part sold with a guarantee of functionality. Cosmetic damage to mounting brackets may be present and does not affect performance. Verify fitment by OEM part number or VIN before purchase and contact us for compatibility checks or installation guidance.
