User Manual

A
BROCHURE SUMMARY
BOSCH EDC 15C2 HDI SYSTEM (High pressure
Diesel Injection)
COMBINED WITH A PARTICLE FILTER SYSTEM
The aim of this brochure is to define the composition and operation of a BOSCH EDC 15
C2 HDI diesel engine management system, combined with a particle filter system, in
relation to the DW12 Diesel engine.
This device consists of an ECU which analyses the information from the various
sensors, and then operates the injectors at the correct moment. It also controls a
pressure regulator, the exhaust gas recycling electrovalve and the turbocharging
pressure modulating electrovalve.
The following subjects are dealt with in this document:
- General details and system presentation,
- Description and operation of the components of the various functions, or the
functions themselves,
- Description of the operating phases:
• of the injection system,
• of the particle filter system.
- Notes on maintenance,
- The electrical circuit.
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