volvo Workshop Repair Guides

Volvo Workshop Service and Repair Manuals

Diagram Information and Instructions|Page 2443 > < Diagram Information and Instructions|Page 2441
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^ Ignition
^ Idle speed
^ Turbo charger boost pressure
^ Engine cooling fan
^ EGR System
^ EVAP System

OPERATION

The ECM uses a microprocessor to convert input signals into the necessary output functions.

The ECM also incorporates on-board diagnostics (OBD) to monitor system operation.  

The ECM incorporates "self-learning" (adaptive) functions which allow it to adjust output functions for various operating conditions.

SYSTEM DESCRIPTION

Additional information is available under "SYSTEM DESCRIPTION."

Diagram Information and Instructions|Page 2443 > < Diagram Information and Instructions|Page 2441