Diagnostic Function - Volvo Penta D3-130A Operator's Manual

In case of emergency

Diagnostic function

The diagnostic function monitors and checks that the engine, stern drive/reverse gear and EVC MC system
function normally.
The diagnostic function has the following tasks:
●
Discover and localize malfunctions
● Notify that malfunctions have been discovered
●
Give advice in fault finding
●
Protect the engine and ensure continued operation when serious malfunctions are discovered.
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Malfunction message
If the diagnostic function discovers a malfunction, it
warns the driver by starting to flash the indicator on
the diagnostic button. To acknowledge the alarm,
press the left arrow button on the Button Panel to
acknowledge the message. The alarm buzzer will be-
come silent. The lights will go off when the fault
disappear.
The diagnostic function affects the engine in the
following ways when:
1. The diagnostic function has discovered a minor
malfunction which does not damage the engine.
Reaction: The engine is not affected.
2. The diagnostic function has discovered a serious
malfunction which will not immediately damage the
engine (e.g. high coolant temperature):
Reaction: Engine power is reduced till the rele-
vant value is normalized.
3. The diagnostic function has discovered a serious
malfunction which will cause serious engine
damage or make it impossible to control.
Reaction: Engine speed is reduced.
4. The diagnostic function has discovered a serious
malfunction in the fuel injection system.
Reaction: Engine is stopped.