Description
Overview
The Bosch EDC15C2 Engine Control Unit (ECU) is designed for PSA Group diesel engines, commonly fitted to Citroen and Peugeot 2.0 HDi applications with FAP/DPF systems. This unit controls fuel injection timing, turbo boost, EGR, and emission functions to ensure efficient engine performance.
Key Functions And Benefits
- Precise diesel injection control and timing
- Turbocharger and boost management
- EGR and DPF/FAP regeneration control
- Diagnostics interface compatible with OBD protocols
- Restores engine drivability and fuel economy when faulty
Vehicle Fitment
Typical fitment includes Citroen C5 2.0 HDi FAP and other PSA models using Bosch EDC15C2 hardware. Part numbers: 0281011091, 9648870880. Cross-reference with vehicle VIN and component tag before purchase.
Replacement And Installation Notes
Replacement requires removal of the ECU from under the dashboard or engine bay (location varies by model). Disconnect the battery before starting. Carefully unplug wiring harness connectors and remove mounting screws. Install in reverse order. After installation, clear fault codes and check for diagnostic trouble codes (DTCs) via a diagnostic tool. In many cases, ECU replacement requires immobiliser/ECU pairing or programming; consult a qualified technician or use a diagnostic tool capable of ECU coding.
Common Faults And Lifespan
EDC15C2 units can fail due to water ingress, connector corrosion, heat-related component degradation, or internal solder joint cracks. Symptoms include loss of power, poor starting, limp-home mode, irregular fuel consumption, and ECU-related fault codes. Lifespan varies based on use and environment; failures are more common on high-mileage or water-exposed vehicles.
Technical Information
Manufacturer: Bosch
Model: EDC15C2
Product Codes: 0281011091, 9648870880
Other Numbers: 1940CV, 1940CW
