Iveco Daily. Manual — part 139
D
AI
LY
488/
46
F1
A
E
N
G
IN
E
Revi
-
Feb
ru
ar
y
2005
P
rin
t
603.93.281/
A
DTC
FMI
BLINK
CODE
Failing
component
Type of
Failure
Visible failure
Possible Cause
Repair action
Checks to be
performed
Measuring
conditions
Values to be
detected
Remarks
48
08
53
INJECTOR - IN-
JECTOR 4 (DTC
70)
SIGNAL
NOT
PLAUS-
IBLE
Engine
not
working proper-
ly,
possible
power
reduc-
tion.
Injector
not
working proper-
ly.
Check
wiring
and
connec-
tions.
Replace
injector if re-
quired.
1- Measure type:
Resistance
(Ohm)
Measure
point
1: ECU Pin: A1
Measure
point
2: Pin: 1
2- Measure type:
Resistance
(Ohm)
Measure
point
1: ECU Pin: A31
Measure
point
2: Pin: 2
3- Measure type:
Resistance
(Ohm)
Measure
point
1:
Pin:
1
Measure
point
2: Pin: 2
1-
Connector
Not connected;
Key +15 OFF;
2-
Connector
Not connected;
Key +15 OFF;
3-
Connector
Not connected;
Key +15 OFF;
1- Typical Value:
0,1 Ohm;
2- Typical Value:
0,1 Ohm;
3- Min. value: 0,5
Ohm;
Max.
value: 0,9 Ohm;
Typical
Value:
0,7 Ohm;
Only three cylin-
ders running.
49
04
53
INJECTOR - IN-
JECTOR 4 (DTC
71)
NO
SIG-
NAL
Engine
not
working proper-
ly,
possible
power
reduc-
tion.
Injector
wiring
open circuit.
Check
wiring
and
connec-
tions.
Replace
injector if re-
quired.
Only three cylin-
ders running.
49
04
53
INJECTOR - IN-
JECTOR 4 (DTC
71)
NO
SIG-
NAL
4E
08
13
VEHICLE
-
CRUISE
CON-
TROL SWITCH
UNIT
SIGNAL
NOT
PLAUS-
IBLE
Cruise control /
PTO not work-
ing.
Press SET+
/
SET- and RE-
SUME/ OFF at
the same time.
Check
correct
operation of the
switch by read-
ing state para-
meters.
Replace
wiring
and connections
if state does not
change
when
Cruise Control
buttons
are
pressed.
D
AI
LY
F1
A
E
N
G
IN
E
488/
47
P
rin
t
603.93.281/
A
Revi
-
Feb
ru
ar
y
2005
DTC
FMI
BLINK
CODE
Failing
component
Type of
Failure
Visible failure
Possible Cause
Repair action
Checks to be
performed
Measuring
conditions
Values to be
detected
Remarks
50
01
94
ELECTRONIC
CONTROL
UNIT
-
MAIN
RELAY DEFECT
EXCEED-
ING NOR-
MAL
RANGE
Engine does not
start, ECU not
powered
or
ECU
always
powered
and
EDC off also at
key-on.
Main relay inter-
rupted or short-
circuit.
Check
wiring
and
connec-
tions.
Replace
relay if required.
50
02
94
ELECTRONIC
CONTROL
UNIT
-
MAIN
RELAY DEFECT
EXCEED-
ING NOR-
MAL
RANGE
Engine does not
start, ECU not
powered
or
ECU
always
powered
and
EDC off also at
key-on.
Main relay inter-
rupted or short-
circuit.
Check
wiring
and
connec-
tions.
Replace
relay if required.
51
01
12
VEHICLE
-
MULTIPOSI-
TION
SELEC-
TOR / PTO
EXCEED-
ING NOR-
MAL
RANGE
Incorrect PTO
operation.
Voltage exceed-
ing max. thresh-
old, short-circuit
to positive.
Check
wiring
and
connec-
tions.
Replace
sensor
if
re-
quired.
51
02
12
VEHICLE
-
MULTIPOSI-
TION
SELEC-
TOR / PTO
EXCEED-
ING NOR-
MAL
RANGE
Incorrect PTO
operation.
Voltage
under
min. threshold,
short-circuit to
ground.
Check
wiring
and
connec-
tions.
Replace
sensor
if
re-
quired.
51
08
12
VEHICLE
-
MULTIPOSI-
TION
SELEC-
TOR / PTO
SIGNAL
NOT
PLAUS-
IBLE
Incorrect PTO
operation.
Faulty device.
Check
wiring
and
connec-
tions.
Replace
sensor
if
re-
quired.
D
AI
LY
488/
48
F1
A
E
N
G
IN
E
Revi
-
Feb
ru
ar
y
2005
P
rin
t
603.93.281/
A
DTC
FMI
BLINK
CODE
Failing
component
Type of
Failure
Visible failure
Possible Cause
Repair action
Checks to be
performed
Measuring
conditions
Values to be
detected
Remarks
52
04
83
FUEL PRESSURE
-
PRESSURE
MPROP
REGU-
LATOR ERROR
NO
SIG-
NAL
Engine off.
Faulty MPROP.
Check
wiring
and
connec-
tions.
Replace
MPROP if re-
quired.
Measure
type:
Resistance
(Ohm)
Measure
point
1: ECU Pin: A49
Measure
point
2: ECU Pin: A19
Connector Not
connected; Key
+15 OFF;
Min. value: 3.2
Ohm;
Max.
value: 3.6 Ohm;
Typical
Value:
3.4 Ohm;
High noise.
52
08
83
FUEL PRESSURE
-
PRESSURE
MPROP
REGU-
LATOR ERROR
SIGNAL
NOT
PLAUS-
IBLE
Check
wiring
and
connec-
tions.
Replace
MPROP if re-
quired.
Measure
type:
Resistance
(Ohm)
Measure
point
1: ECU Pin: A49
Measure
point
2: ECU Pin: A19
Connector Not
connected; Key
+15 OFF;
Min. value: 3.2
Ohm;
Max.
value: 3.6 Ohm;
Typical
Value:
3.4 Ohm;
53
01
83
FUEL PRESSURE
-
PRESSURE
MPROP
REGU-
LATOR ERROR
(SHORT
CIR-
CUIT TO POSI-
TIVE)
EXCEED-
ING NOR-
MAL
RANGE
Short-circuit to
battery,
faulty
MPROP.
Check
wiring
and
connec-
tions.
Replace
MPROP if re-
quired.
54
01
83
FUEL PRESSURE
-
PRESSURE
MPROP
REGU-
LATOR ERROR
(SHORT
CIR-
CUIT TO NEGA-
TIVE)
EXCEED-
ING NOR-
MAL
RANGE
Short-circuit to
ground.
Faulty
MPROP.
Check
wiring
and
connec-
tions.
Replace
MPROP if re-
quired.
D
AI
LY
F1
A
E
N
G
IN
E
488/
49
P
rin
t
603.93.281/
A
Revi
-
Feb
ru
ar
y
2005
DTC
FMI
BLINK
CODE
Failing
component
Type of
Failure
Visible failure
Possible Cause
Repair action
Checks to be
performed
Measuring
conditions
Values to be
detected
Remarks
56
08
91
ELECTRONIC
CONTROL
UNIT - INTER-
NAL
ECU
FAULT (DTC 86)
SIGNAL
NOT
PLAUS-
IBLE
Wrong
ECU
programming.
Probable
elec-
tromagnetic in-
terference.
Faulty ECU.
Switch key on/
off and wait for a
few
seconds,
clear
failure
memory. If the
error
persists,
call
the
Help
Desk for instruc-
tions on how to
replace
the
ECU.
5A
01
64
ELECTRONIC
CONTROL
UNIT - INTER-
NAL
ECU
FAULT (DTC 90)
EXCEED-
ING NOR-
MAL
RANGE
Wrong
ECU
programming.
Probable
elec-
tromagnetic in-
terference.
Faulty ECU.
Switch key on/
off and wait for a
few
seconds,
clear
failure
memory. If the
error
persists,
call
the
Help
Desk for instruc-
tions on how to
replace
the
ECU.
5A
02
64
ELECTRONIC
CONTROL
UNIT - INTER-
NAL
ECU
FAULT (DTC 90)
EXCEED-
ING NOR-
MAL
RANGE
Wrong
ECU
programming.
Probable
elec-
tromagnetic in-
terference.
Faulty ECU.
Switch key on/
off and wait for a
few
seconds,
clear
failure
memory. If the
error
persists,
call
the
Help
Desk for instruc-
tions on how to
replace
the
ECU.
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