User Manual

Chapter 11

BOSCH HDI EDC 15C2 INJECTION SYSTEM AND PARTICLE FILTER

VIII - BUILT-IN SYSTEMS INTERFACE (BSI1)

The BSI sends the additive ECU the following information:

• engine speed sensor signal (engine running information),

• vehicle speed information,

• fuel sender information,

• ignition key position.

IX - FUEL ADDITIVE ECU (1282)

A - ROLE

The ECU controls additive injection.

The ECU software is responsible for:

• controlling the start of additive injection and additive injection time into the fuel

tank,

• managing the total amount of additive injected since the beginning of the

filter's life,

• the emergency strategies,

• diagnostic with memorising of faults,

• dialogue with the injection ECU.

B - DESCRIPTION

The ECU electrically controls the following components:

• low additive level sensor,

• additive injection pump,

• additive injector,

• fuel filler cap presence contact,

• catalytic converter downstream exhaust gas temperature sensor.

Supplier: MAGNETTI MARELLI.

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