Technical data

34
 ENGINE MALFUNCTIONS
The Electronic Unit overseeing management and control of all opera-
tion of the engine is capable of recognising any malfunctions that may
occur, and of adopting strategies that will allow you to navigate in full
safety.
The event, signalled by light-up of the EDC MALFUNCTION indicator
on the on-board control panels and light-up of an indicator on the re-
lay box, in certain cases results in limitation of power within certain
thresholds, set according to the severity of the case.
Intermittent light-up of the EDC alarm indicator on the on-board pan-
els is simply to warn of the presence of a malfunction, which can be
identified by decoding the flashes (blink code) produced by the
CHECK indicator.
The IVECO MOTORS Technical Service Network staff are responsi-
ble for decoding and interpreting the codes.
If necessary, members of crew may notify the Technical Service Centre
staff of the number code displayed, and request instructions on how
to proceed.
CHECK indicator
Located on the relay box, this indicates the electronic injection control
malfunction codes (7 figure on page 14).
The codes are emitted every time a malfunction is recognised, and is
repeated continuously until the cause of the problem is dealt with; the
sequence of different malfunction codes is known as a "list" and the list
of codes is repeated continuously in the same order; a 6 second pause
separates each repeat of the lists.
Each code is organised in numeric blocks of 3 figures, with light-up of
the indicator always having a duration of 0.6 seconds.
The pauses (times when the indicator is off) are of different lengths to
indicate the different types of information supplied:
pause between flashes for the same figure 0.36 seconds
pause between different figures in the same code 1.5 seconds
pause between different codes in the same list 3 seconds
pause between successive lists 6 seconds
Indicator (WARNING)
Located on the relay box, this provides the indication resulting from
monitoring of the main engine operating parameters, carried out by
the Electronic Control Unit.
WARNING
When a malfunction occurs, a malfunction indicator lights up and the
performance of the engine may drop. In the case of a temporary mal-
function, the indicator lights will remain on for as long as the malfunc-
tion continues. When normal working conditions have been restored
the indicator light will go out and the malfunction code will be saved
in the Electronic Unit faults memory.
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