Справочник Пользователя для Iveco S30 ENT M23
installation directiVe
MAY 2006
S30 ENT M23
18. EDC ANOMALIES INDICATION
Anomalies indicator light
The ECU continuously monitors, with complex self-testing
routines, its own operating conditions as well as those of the
components connected to it and of the engine.
When anomalies are detected, the alarm indicator light on
the indicator and control panel is lighted in manners that
provide a first indication on the severity of the problem.
light off:
no anomaly detected or slight anomaly
that does not compromise operating
safety
light on:
significant anomaly, allowing to proceed to
a service center
Blinking light:
severe anomaly requiring immediate
repairs. If possible, shut the engine down.
Recovery
The recognition of significant or severe anomalies causes
the adoption of strategies that allow to use the engine with
complete safety, guaranteed by limiting performance within
pre-set thresholds according to the severity of the case.
These strategies cause the reduction of the maximum values
of torque and power delivered by the engine.
In the case of intermittent anomalies, i.e. recognized by the
ECU and subsequently no longer present, performance
reduction will continue until the engine is shut down.
Normal operation will be restored only the next time the
engine is started, while the anomaly data will be “saved” in
the failure memory.
NOTE
identification of severe anomalies of the accelerator posi-
tion sensor, causes the ecu to increase the engine rpm
from about 00 rpm to about 100 rpm, in order to
achieve a minimum engine thrust and allow manoeuvers.
Error deletion procedure
It will be possible through the IVECO PT01 device con-
nected to the dedicated J1 diagnostic connector.
CAUTION
the mistake deleting procedure is intended to eliminate
the information relating to the mistakes from the ecu
memory, which happened during previous working periods.
the mistakes will not be deleted unless the relating cause
has been removed. please remember that some anomalies
can be detected by the ecu self-diagnosis only during a
complete engine working cycle.
Figure 46
06_048_S