Fault handling
Despite regular maintenance according to the maintenance schedule and perfect operation conditions, faults that
need to be attended to during travel, may occur. This chapter describes some possible alarms and fault handling.
Note that the content of this chapter does not provide full coverage of the possible fault messages and alarms.
Contact a Volvo Penta workshop for assistance with diagnostic readouts and unresolved faults.
Message from engine and MCC system
If a malfunction is discovered the driver is warned by a
buzzer sounding and a message showing in the
display.
Information regarding ”cause of fault” and ”measures
to take” is found in chapter Fault Code Register.
The engine, transmission and MCC system is
monitored by the diagnostic function. Should the
diagnostic function discover a malfunction it protects
the engine and ensures continued operation by
affecting the engine. Depending on how serious the
malfunction is the effect on the engine varies.
•
Minor malfunction which does not damage the
engine or transmission.
Affect on engine: None.
•
Serious malfunction which will not immediately
damage the engine or transmission e.g. high
coolant temperature.
Affect on engine: Engine power is reduced until
faulty value becomes normal.
•
Serious malfunction which will cause serious
damage to engine or transmission.
Affect on engine: Engine power is reduced.
•
Serious malfunction which makes it impossible to
control the engine or transmission.
Affect on engine: Transmission is disengaged and
engine speed is reduced.
It is possible to perform emergency shifting, please
refer to Emergency Shifting.
•
Serious malfunction on transmission or in the engine
fuel injection system.
Affect on engine: Engine is stopped.
It is possible to perform emergency shifting, please
refer to Emergency Shifting. In emergency
situations it is also possible to start the engine with
gear engaged after acknowledging the alarm.
Acknowledge message
The Acknowledge button (1) acknowledges all alarms.
Alarms that are not active disappear from the list.
47710406 10-2018 © AB VOLVO PENTA 45
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