Iveco Daily. Manual — part 38
ENGINES 8140.43R/B/S/N
134
D
AILY
Base - May 2004
Warning light
Failure
Reduction level (*)
INJECTORS
5.1
Blinking
Cylinder 1 injector solenoid valve
5.2
Blinking
Cylinder 2 injector solenoid valve
5.3
Blinking
Cylinder 3 injector solenoid valve
5.4
Blinking
Cylinder 4 injector solenoid valve
5.7
On
Block 1 (cylinders 1-4)
5.8
On
Block 2 (cylinders 2-3)
ENGINE RPM
6.1
Blinking
Flywheel sensor
*
6.2
Blinking
Timing sensor
*
6.4
Blinking
Runaway speed rate
FUEL PRESSURE
8.1
Blinking
Fuel pressure control
*
or engine switching off
8.2
Blinking
Fuel pressure sensor
*
8.3
Blinking
Pressure limiter
8.4
On
3rd pumping element cut-out solenoid valve
8.5
On
EGR control
8.6
On
EGR solenoid valve
8.7
On
Flow meter
8.8
Off
Air temperature sensor (flow meter)
ECU
9.1
Blinking
ECU error (Gate array)
*
Engine switching off
9.2
On
ECU error (Eeprom)
9.3
Blinking
Immobilzer - EDC communication
9.4
On
Main relay
9.5
Off
After run stopped repeatedly
9.6
Blinking
Engine not switched off by key
9.7
Blinking
Sensor power
*
1 or engine
switching off
9.8
Blinking
ECU error (Checksum)
Impossible to start
9.9
Blinking
ECU error (Operating system)
Engine switching off
*
Cases in which there is a reduction in power.
E
N
G
IN
E
S
8140.
43R
/B
/S
/N
135
D
AI
LY
B
as
e
-
M
ay
2004
P
rin
t
603.
93.
281
ENGINE
BLINK
CODE
EDC
WARNING
LIGHT
POSSIBLE
CAUSE
POSSIBLE
FAILURES
RECOMMENDED TESTS
OR OPERATIONS
REMARKS
1.1
On
Vehicle speed sensor
- not plausible or absent sig-
nal
Speed indication on speed-
ometer may be failing. Light
defect with high speeds.
Road test with IWT-IT2000
Read parameters
Check wiring, connections and in-
volved components
If the speed value read on IWT-IT2000 is fixed
although the vehicle speed is varying, there is
a communication fault between sensor and
ECU.
Should signal be missing, Cruise Control can
be activated also at low speeds (operation ac-
cording to PTO parameters) since the ECU
does not detect that the speed threshold dis-
criminating between PTO and Cruise Control
modes have been exceeded.
1.1
On
Vehicle speed signal (sec-
tion between speedometer
and ECU) shorted to posi-
tive or to ground
Faulty CRUISE CONTROL/
PTO
Light defect with high speeds.
Road test with IWT-IT2000
Check plausibility between speedom-
eter indication and speed read by IWT-
IT2000
Check wiring, connections between
speedometer and ECU and involved
components
If the speed value read on IWT-IT2000 is fixed
although the vehicle speed is varying, there is
a communication fault between speedometer
and ECU.
1.3
Off
Non-plausibility of CRUISE
CONTROL/PTO
push
buttons
Faulty CRUISE CONTROL/
PTO
Read parameters with IWT-IT2000 to
detect the faulty push button
Check wiring between steering column
stalk and ECU, connections and control
push button
1.4
Blinking
Accelerator pedal potentio-
meter shorted to positive or
to ground, or excessive ac-
celerator pedal voltage or
potentiometer failure.
Power reduction.
1500 rpm accelerated idling
Read parameters with IWT-IT2000.
Check wiring, connections and compo-
nents
Should it be impossible to accelerate using the
pedal, drive using the Cruise Control push
button after disconnecting the speed sensor.
E
N
G
IN
E
S
8140.
43R
/B
/S
/N
136
D
AI
LY
B
as
e
-
M
ay
2004
P
rin
t
603.
93.
281
BLINK
CODE
EDC
WARNING
LIGHT
POSSIBLE
CAUSE
POSSIBLE
FAILURES
RECOMMENDED TESTS
OR OPERATIONS
REMARKS
1.5
Off
Clutch switch: not plausible
or absent signal
Faulty CRUISE CONTROL/
PTO
Or, when depressing the
clutch pedal with CRUISE
CONTROL/PTO on, engine
comes up to peak rpm
Light defect at gear shifting.
Depress completely the pedal clutch
and read state parameters on IWT-
IT2000.
If failure persists, check wiring, connec-
tions and proper switch assembling
If check is OK, failure could be due to poor
clutch activation (it is possible to shift gears
without activating the switch)
If the clutch signal is absent, Engine test cannot
be performed.
1.6
On
Brake switches: not plaus-
ible signals between pri-
mary and secondary
Possible stop light malfunc-
tioning.
Faulty CRUISE CONTROL/
PTO
State parameters
Wiring, connections, switches
Check proper pedal switch assembling (they
must activate at the same time)
1.7
Off
Brake/accelerator
pedal
plausibility: brake and accel-
erator activated at the
same time
Engine speed comes down
to idling
Read parameters on Modus IWT-
IT2000, check whether accelerator
pedal potentiometer signal sets to zero
when releasing, otherwise it is possible
that the driver has depressed brake and
accelerator at the same time.
If the brake is activated with the accelerator
depressed, engine runs idle until releasing the
brake to enable vehicle stop even if the accel-
erator pedal is locked in intermediate posi-
tion. It is however possible to accelerate al-
though the brake pedal is depressed without
activating safety strategies.
1.8
Off
EDC lamp shorted or with
open circuit
The EDC indicator light fails
to come on when turning
the key ON, or it always
stays on even with the key
turned OFF
Check component wiring connec-
tions
The functionality of the indicator light is of
vital importance for the system’s operation
and integrity.
Sensitize the user to verify that the indica-
tor light works properly with every ignition
(if there are no faults in memory, it has to
turn on for 2 sec. and then go out).
E
N
G
IN
E
S
8140.
43R
/B
/S
/N
137
D
AI
LY
B
as
e
-
M
ay
2004
P
rin
t
603.
93.
281
BLINK
CODE
EDC
WARNING
LIGHT
POSSIBLE
CAUSE
POSSIBLE
FAILURES
RECOMMENDED TESTS
OR OPERATIONS
REMARKS
1.9
Off
Air-conditioning
com-
pressor control contactor
coil shorted to conditioning
earth or circuit open.
In case of open circuit at 8a
pin, also 2.7, 2.8 and 2.9 are
recorded
Faulty
conditioner
com-
pressor
Measurable relay parameters
Check wiring, connections and relay
2.1
Blinking
Circuit open, shorted to
earth or shorted to posi-
tive of water temperature
sensor, the fuel tempera-
ture is used instead
Difficult starting cold
Engine cooling fan always
on
Power reduction (and noise
since pre-injection is not ef-
fected)
Reading parameters on Modus IWT-
IT2000
Checking wiring and connector of
water temp. sensor, sensor replace-
ment
The fan comes on with fuel temperature =
20 ºC
If the water and diesel temp. are the same,
the substitution value is active.
2.1
Blinking
See 2
s
Section: “The en-
gine fails to start”
See 2
s
Section: “The engine
fails to start”
See 2
s
Section: “The engine fails to
start”
See 2
s
Section: “The engine fails to start”
2.2
Off
Intake manifold air tem-
perature sensor short to
positive or to ground, or
circuit open.
Light performance reduction
at cold, light smoke when ac-
celerating with warm engine,
3.9 indication at the same
time and smoke at starting.
Smoke at starting and when
accelerating at high speed
with warm engine
Read parameters on Modus IWT-
IT2000.
Check wiring and component.
40ºC air temperature fixed substitution value
is set; glow plug control as a function of air
temperature not operating.
Flame start is however performed if water or
fuel temperature sensors indicate < 0 ºC and
is deactivated when reaching 0º C
2.3
On
Fuel temperature sensor
short to positive or to
ground, or circuit open.
If the electric failure depends
on pin 30 see also 2.1
Difficult cold starting.
Read parameters on Modus IWT-
IT2000.
Check wiring, connections and compo-
nent.
Water temperature is adopted as substitution
value. Should also this signal be missing, 40 ºC
fixed value is adopted.
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