Engine Iveco C10/C13/C78/Cursor 13/Cursor 78. Manual — part 96
54
SE
C
T
IO
N
3
-
IN
D
U
STRIAL
APPL
IC
ATIO
N
F3
B
C
U
R
SO
R
E
NG
IN
E
S
B
as
e
-
A
p
ril
2006
P
rin
t
P
2D
32C001
E
BLINK
CODE
EDC
WAR-
NING
LIGHT
POSSIBLE
CAUSE
POSSIBLE RELATED
ANOMALIES
RECOMMENDED TESTS
OR MEASURES
REMARKS
2.1
OFF
Faulty coolant temperature
sensor. Excessive starting
time
in
cold
weather
conditions.
Greater
combustion noise
due to high injection advance.
Pre-heating resistor active diagnosis.
Parameter reading. Check cabling,
connections and component.
No overheating protection, replacement value
= 0˚C.
2.2
OFF
Faulty
boosting
air
temperature sensor.
If
the
sensor
signals
a
temperature lower than the
actual one, the error is not
stored
and
the
engine
achieves better performance,
yet with black smoke.
Parameter reading. Check cabling,
connections and component.
Replacement value = 20˚C.
2.3
OFF
Faulty
fuel
temperature
sensor.
Parameter reading. Check cabling,
connections and component.
No injection rate correction; yet, the driver is
not aware of it.Replacement value = 30˚C.
2.4
ON steady
Faulty boosting pressure
sensor. Power reduction.
Significant black smoke in
momentary conditions.
Parameter reading modus: if the
replacement value is read when the
engine is idling, the fault is confirmed.
Replacement value. Cursor 8 = 1,600 mbar,
Cursor 10 = 2,800 mbar.
2.5
OFF
Faulty ambient pressure
sensor.
Contact Help Desk for replacement (if
any) of the control unit, owing to the
sensor being integrated into the same.
EDC works with a replacement value of 28 V.
3.5
OFF
Too low battery voltage or
voltage recognition fault.
Possible
pre-heating
and
starting problems.
Battery test.
5.x
ON steady
Problem
with
injection
circuit on cylinder X. The
engine speed is reduced,
and the engine operated
with 5 cylinders.
If the fault is intermittent, the
engine
sometimes
works
correctly; sometimes, it does
not.
Engine test (if the fault is found). Check
component, cabling and connections
(head cable included).
SE
C
T
IO
N
3
-
IN
D
U
STRIAL
APPL
IC
ATIO
N
55
F3
B
C
U
R
SO
R
E
NG
IN
E
S
P
rin
t
P
2D
32C001
E
B
as
e
-
A
p
ril
2006
BLINK
CODE
EDC
WAR-
NING
LIGHT
POSSIBLE
CAUSE
POSSIBLE RELATED
ANOMALIES
RECOMMENDED TESTS
OR MEASURES
REMARKS
6.1
ON steady
Faulty
flywheel
sensor.
Reduced engine speed and
power.
Engine starting may take a
longer time than usual.
Fault memory reading by means of the
diagnosis instrument.Check cabling,
connections and component.
6.2
ON steady
Distributing shaft sensor.
Reduced engine speed and
power.
Engine starting may take a
longer time than usual.
Fault memory reading by means of the
diagnosis instrument.Check cabling,
connections and component.
(6.1 - 6.2)
ON steady
Distributing shaft phonic
wheel has rotated, due to
loosened
screws.
The
engine won’t start, or stops
and cannot
be started
again.
Reduced power with engine
started
(after
taking
the
measure recommended in the
next column).
Disconnect
the
distributing
shaft
sensor connector. If the engine is
started, even by taking a longer time
than usual, the phonic wheel is
out-of-phase.
6.4
Blinking
The engine has reached (on
pulling)
the
out-of-rev
conditions for any reason
whatsoever.
Fault memory reading. Flight recorder
reading to get confirmation of the
engine out-of-rev condition.
(9.1)
Blinking
Faulty
EDC
control
unit.The engine will stop or
won’t start.
Contact Help Desk for control unit
replacement.
No diagnosis can be made.This error may even
not be stored; this depends on the control unit
conditions.
9.2
ON steady
Control
unit
fault
(EEPROM
memory).
Reduced engine speed and
power.
Faulty memory lost; only the
diagnosis of existing faults can
be made.
Contact Help Desk for replacement (if
any) of the control unit.
9.4
Blinking
Main relay faulty or locked
in closed position. The
EDC warning light remains
ON when the key is turned
to OFF; yet the engine will
stop.
EDC power supply remains
ON after the key has been
turned to OFF; danger of
battery run-down.
Check
cabling,
connections
and
component.
The fault will be stored only after the next time
the engine is started.
56
SE
C
T
IO
N
3
-
IN
D
U
STRIAL
APPL
IC
ATIO
N
F3
B
C
U
R
SO
R
E
NG
IN
E
S
B
as
e
-
A
p
ril
2006
P
rin
t
P
2D
32C001
E
BLINK
CODE
EDC
WAR-
NING
LIGHT
POSSIBLE
CAUSE
POSSIBLE RELATED
ANOMALIES
RECOMMENDED TESTS
OR MEASURES
REMARKS
9.5
ON steady
ECU power supply is cut
out too often (5 times):
faulty main relay or engine
stop by means of battery
disconnect
switch.
Reduced
engine
max.
speed and power.
Check
main
relay,
cabling
and
connections. Investigate whether the
driver switches the engine off in other
ways than by turning the key.
The problem will be solved by itself the next
time the switch-off procedure and data storing
are performed correctly.
9.6
ON steady
ECU
stop
test
failure.
Reduced engine speed and
power.
This is a test procedure
inherent to the control unit
for power stage control. It
might
store
other
errors
concerning the various power
stages of actuators.
Contact Help Desk for replacement (if
any) of the control unit.
PA
RT
3
SE
C
T
IO
N
3
-
IN
D
U
STRIAL
APPL
IC
ATIO
N
57
F3
B
C
U
R
SO
R
E
NG
IN
E
S
P
rin
t
P
2D
32C001
E
B
as
e
-
A
p
ril
2006
SIGNALLED
ANOMALY
BLINK
CODE
EDC
WAR-
NING
LIGHT
POSSIBLE
CAUSE
POSSIBLE
RELATED
ANOMALIES
RECOMMENDED
TESTS OR
MEASURES
REMARKS
The battery goes flat
quickly.
-
-
Pre-heating
resistor
powered continuously.
Local overheating.
The engine will stop or
won’t start.
-
-
Fuel pre-filter clogged.
Difficult start when the
engine is either hot or
cold.
-
-
The 3.5 bar valve on fuel
return is stuck open.
Slight overheating.
-
-
Either 0.3 bar tank return
valve
or
return
piping
clogged.
After the new vehicle
has been delivered, the
engine will stop after a
short
operation
time.The tank holds a
lot of fuel; all the rest is
O.K.
-
-
Reversed tank suction /
return pipes.
The engine is fed by the
return pipe, the suction
of which in the tank is
lower. When the pipe
sucks no more, the
engine will stop.
Reduced
power
/
difficult
engine
maneuverability.
-
-
Injection
system
/
the
engine operates with one
cylinder failing:
- injector plunger seizure;
- valve rocker arm seizure.
Overheating
Engine test: cylinder efficiency test.
If the trouble is not related to
electric components (Blink code
5.x), the rocker arm holder shaft
needs be disassembled. Check the
rocker arm roller and bushing as
well as the respective cam.
Fuel
consumption
increase.
-
-
Air filter clogging with no
signal from the warning
light on the instrument
board.
Smoke.
Check the cabling, connections and
component.
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