Description
Bosch EDC15C2 engine control unit (ECU) with part numbers 0281011091 and 9648870880, intended for PSA diesel applications. This ECU restores engine management functions on select Citroën and Peugeot 2.0 HDi vehicles and is a practical option for professional workshops and experienced DIY mechanics seeking a reliable replacement for faulty engine control systems.
Key Features and Benefits
- Direct-fit unit for compatible PSA 2.0 HDi vehicles with Bosch EDC15C2 calibration.
- Manages fuel injection, turbo boost control, EGR function and DPF/particulate filter regeneration logic.
- OEM Bosch electronics and calibration options to maintain engine performance and emissions compliance.
- Suitable for workshops and competent DIYers who can perform diagnostic backup and immobiliser pairing where required.
Fitment Examples
Commonly fitted to PSA vehicles with 2.0 HDi diesel engines. Example model: Citroën C5 2.0 HDi FAP. May also be found on various Citroën and Peugeot models equipped with 2.0 HDi ECUs using Bosch EDC15C2 calibrations. Always verify part numbers and calibration codes against your vehicle before purchase.
Installation And Replacement Advice
- Before removal, record and back up the original ECU software/calibration using a compatible diagnostic tool when possible.
- Disconnect the vehicle battery prior to working on the electrical system to avoid damage.
- Carefully disconnect the wiring harness and ensure connector contacts are clean and undamaged.
- After physical replacement, immobiliser/ECU pairing or coding may be required using an appropriate PSA diagnostic device or programming tool. Ensure keys and immobiliser data are compatible to avoid no-start conditions.
- Clear stored fault codes and perform a road test while monitoring live parameters to confirm correct operation.
Common Failure Modes And Maintenance Tips
- Failures are often caused by electrical issues such as connector corrosion, water ingress, or voltage spikes. Inspect harnesses and grounding points during replacement.
- Thermal stress and vibration can produce solder joint cracks on circuit boards in older units; proper mounting and vibration protection help prolong life.
- Regularly check sensors (MAF, MAP, temperature, and injector circuits) and wiring for faults that can cause ECU fault codes or limp-home behaviour.
Technical Information
- Manufacturer: Bosch
- Model: Citroën C5 2.0 HDi FAP (PSA Citroën/Peugeot 2.0 HDi Applications)
- Product Codes: 0281011091, 9648870880
- Other Numbers: 1940CV, 1940CW
Note: Always confirm exact part numbers and calibration codes against your vehicle registration or existing ECU label before ordering. If unsure about immobiliser pairing or software transfer, consult a qualified technician or authorized dealer to avoid compatibility issues.
