Iveco Daily. Manual — part 113
F1
A
E
NG
INE
D
AI
LY
430
B
as
e
-
M
ay
2004
P
rin
t
603.
93.
281
BLINK
CODE
EDC
LAMP
POSSIBLE
CAUSE
POSSIBLE
TROUBLE
TESTS OR
RECOMMENDED ACTION
NOTES
2.4
Blinking
Air pressure sensor on
intake
manifold
short-
circuited or circuit open.
Or
waste-gate
valve
malfunctioning.
Decrease in power.
Possible
oscillation
while
driving with engine at full
load.
Read measurable parameters with the
diagnosis instrument: if there is this
error, the value read on the control
unit will be fixed on 2000 mbar.
If the indicated value is fixed at 2000
mbar, check the wiring between the
sensor and EDC connector A3 — A34.
If the wiring is sound:
Check that the waste-gate valve is not
jammed shut or open.
The pressure sensor is integrated with the
temperature sensor.
If the waste-gate valve is jammed shut, there may
be surging with the engine under load because:
- power limitation trips when accelerating under
load;
- the turbocharging pressure drops;
- the engine goes back to normal operation and
the pressure increases;
- limitation trips again;
- etc.
If the turbocharging pressure really is too high,
there is a risk of turbine over-revving with its
associated damage.
2.5
Off
Ambient pressure sensor
short-circuited or circuit
open.
Possibly some black smoke at
altitude, especially with EGR
(it
is
not
excluded
at
altitude).
The sensor is integrated in the EDC
control unit and cannot be replaced on
its own.
Any painting on the engine/control unit may
prevent the ambient pressure getting measured
correctly.
2.7
On
Fuel motor pump relay coil
short-circuited or circuit
open.
Fuel motor pump always on
even with key OFF.
The battery discharges.
Early deterioration of the
motor pump.
Or
Active diagnosis of the relay with the
diagnosis instrument.
Take out the relay 25837, located in
the contactor control unit (left-hand
side of driver).
If the pump cuts out, replace the relay.
If the pump does not cut out, check the
wiring between 87 of the relay and
battery positive.
You hear the noise of the pump turning
continuously, even with the key off.
F1
A
E
NG
INE
431
D
AI
LY
B
as
e
-
M
ay
2004
P
rin
t
603.
93.
281
BLINK
CODE
EDC
LAMP
POSSIBLE
CAUSE
POSSIBLE
TROUBLE
TESTS OR
RECOMMENDED ACTION
NOTES
The
engine
starts
with
difficulty and fails to reach its
top performance.
If the motor pump fails to work, check
the continuity of the coil between pin
A7 and A8 of the EDC connector.
In addition, check the wiring between the
EDC connector pin A7 and relay 86,
EDC connector pin A8 and relay 85.
2.8
Off
Fuel
filter
heater
relay
defective.
Heater always on even with
fuel temperature > 5
°C.
The battery discharges.
Heater fails to come on even
with fuel temperature < 5
°C.
Filter may be clogged due to
the fuel paraffining with harsh
outdoor temperatures (<
-15
°C).
Active diagnosis of the relay with the
diagnosis instrument.
Check continuity of the coil between
the EDC connector pin A32 and relay
pin A8.
In addition, check the wiring between
the EDC connector pin A32 and relay
86, EDC connector pin A8 and relay
85.
Check the continuity of the coil
between the EDC connector pin A32
and relay A8.
In addition, check the wiring between
pins A32 of the control unit and relay
86, control unit A8 and relay 85.
2.3 may get stored in memory since the fuel gets
too warm.
Starting
may
be
difficult
with
very cold
temperatures.
Engine starting may produce too much smoke.
2.9
On
Fan
relay
coil
short-
circuited or circuit open.
Increase in fuel consumption.
Engine cooling fan always on
even with engine cold.
Or
Active diagnosis of the relay with the
diagnosis instrument.
Check coil continuity between EDC
connector pin A39 and relay A8.
In addition, check the wiring between
the EDC connector pin A39 and relay
86, EDC connector pin A8 and relay
85.
In active diagnosis, besides the relay activating,
you hear the fan’s electromagnetic clutch cutting
in and out.
F1
A
E
NG
INE
D
AI
LY
432
B
as
e
-
M
ay
2004
P
rin
t
603.
93.
281
BLINK
CODE
EDC
LAMP
POSSIBLE
CAUSE
POSSIBLE
TROUBLE
TESTS OR
RECOMMENDED ACTION
NOTES
Engine
overheating
and
accordingly possible power
limitation.
Engine cooling fan fails to
work.
Check coil continuity between EDC
connector pin A39 and relay A8.
In addition, check the wiring between the
EDC connector pin A39 and relay 86,
EDC connector pin A8 and relay 85.
3.1
Off
Injector no. 1 unbalanced.
Injector inefficient.
There
may
be
irregular
rotation and smoke.
Engine test, cylinder efficiency test.
Check the wiring and connections
between the injector and the EDC
connector pin A12 and A40.
If the wiring is good, perform the
compression test with the diagnosis
instrument.
If the compression in cylinder no. 1 is
OK, replace the injector.
The control unit has to modify the signal to
injector no. 1 (Cylinder Balancing) too far beyond
the normal value.
3.2
Off
Injector no. 2 unbalanced.
Injector inefficient.
There
may
be
irregular
rotation and smoke.
Engine test, cylinder efficiency test.
Check the wiring and connections
between the injector and the EDC
connector pin A10 and A43.
If the wiring is good, perform the
compression test with the diagnosis
instrument.
If the compression in cylinder no. 2 is
OK, replace the injector.
The control unit has to modify the signal to
injector no. 2 (Cylinder Balancing) too far beyond
the normal value.
3.3
Off
Injector no. 3 unbalanced.
Injector inefficient.
There
may
be
irregular
rotation and smoke.
Engine test, cylinder efficiency test.
Check the wiring and connections
between the injector and the EDC
connector pin A23 and A42.
If the wiring is good, perform the
compression test with the diagnosis
instrument.
If the compression in cylinder no. 3 is
OK, replace the injector.
The control unit has to modify the signal to
injector no. 3 (Cylinder Balancing) too far beyond
the normal value.
F1
A
E
NG
INE
433
D
AI
LY
B
as
e
-
M
ay
2004
P
rin
t
603.
93.
281
BLINK
CODE
EDC
LAMP
POSSIBLE
CAUSE
POSSIBLE
TROUBLE
TESTS OR
RECOMMENDED ACTION
NOTES
3.4
Off
Injector no. 4 unbalanced.
Injector inefficient.
There
may
be
irregular
rotation and smoke.
Engine test, cylinder efficiency test.
Check the wiring and connections
between the injector and the EDC
connector pin A24 and A41.
If the wiring is good, perform the
compression test with the diagnosis
instrument.
If the compression in cylinder no. 4 is
OK, replace the injector.
The control unit has to modify the signal to
injector no. 4 (Cylinder Balancing) too far beyond
the normal value.
3.5
Off
Battery voltage too low (or
recognized as such by the
EDC control unit).
Fast idling up to 1250 rpm
(depending on the voltage
detected)
with
pedal
released.
Check the efficiency of the batteries
and recharging circuit, the efficiency of
the earth points and that there are no
deposits
or
oxidation
on
the
connectors.
The engine cuts out or fails to start if the battery
voltage < 6.5V.
3.6
Off
Pre-heating indicator lamp
short-circuited or
defective.
a) Pre-heating indicator light
always on.
b) Pre-heating indicator light
always off.
Perform
active
diagnosis
of
the
indicator light with the diagnosis
instrument.
Check the wiring between the EDC
connector pin B21 and the vehicle’s
panel B6* (A30**).
Check for power between pins B16*
(A14**) of the vehicle’s panel and
earth.
Even at low ambient temperatures, the driver fails
to wait for pre-heating as no information is
provided by the indicator light.
* old code
** new code
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