Iveco Daily. Manual - part 134

D

AI

LY

488/

26

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

33

04

92

ELECTRONIC
CONTROL
UNIT - INTER-
NAL

ECU

FAULT (DTC 51)

NO

SIG-

NAL

The

engine

switching

off-

data

are

not

memorized. The
failures memory
is lost, only the
present failures
and not the in-
termittent ones
can be read, the
idling

speed,

which can be
eventually

set

by the Cruise
Control

com-

mands, remains
not memorized.

Faulty ECU EE-
PROM.

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.

33

08

92

ELECTRONIC
CONTROL
UNIT - INTER-
NAL

ECU

FAULT (DTC 51)

SIGNAL
NOT
PLAUS-
IBLE

The

engine

switching

off-

data

are

not

memorized. The
failures memory
is lost, only the
present failures
and not the in-
termittent ones
can be read, the
idling

speed,

which can be
eventually

set

by the Cruise
Control

com-

mands, remains
not memorized.

Faulty ECU EE-
PROM.

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.

D

AI

LY

F1
A
E

N

G

IN

E

488/

27

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

34

08

91

ELECTRONIC
CONTROL
UNIT - INTER-
NAL

ECU

FAULT (DTC 52)

SIGNAL
NOT
PLAUS-
IBLE

There

have

been cases in
which this fault is
stored by the
E.C.U. following
after failures in
engine

speed

measurement.
Failure is usually
associated

to

sudden ignition
missing

at

>3000 rpm en-
gine speed, with
engine

discon-

nection follow-
ing. Reading fail-
ure

memory,

fault

code

DTC52 is dis-
played,

some-

times followed
by DTC56 (re-
lating to fault on
Immobilizer).

The fault is at-
tributable to the
gear

wheel,

which probably
presents incor-
rect

tooth

shape.

Check there are
no

mechanical

faults

on

the

teeth of the gear
wheel fitted to
the engine drive
shaft.

35

08

91

ELECTRONIC
CONTROL
UNIT - INTER-
NAL

ECU

FAULT (DTC 53)

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.

D

AI

LY

488/

28

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

36

08

91

ELECTRONIC
CONTROL
UNIT - INTER-
NAL

ECU

FAULT (DTC 54)

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.

37

01

91

ELECTRONIC
CONTROL
UNIT - INTER-
NAL

ECU

FAULT (DTC 55)

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.

38

02

91

ELECTRONIC
CONTROL
UNIT - INTER-
NAL

ECU

FAULT (DTC 56)

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.

D

AI

LY

F1
A
E

N

G

IN

E

488/

29

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

39

01

22

ENGINE 1 - AIR
TEMPERATURE
SENSOR

EXCEED-
ING NOR-
MAL
RANGE

Problematic
cranking, smoke,
problematic ac-
celeration.

Check

wiring

and

connec-

tions.

Replace

sensor

if

re-

quired.

Measure

type:

Resistance
(KOhm)
Measure

point

1: Sensor Pin: 1
Measure

point

2: Sensor Pin: 2

Connector Not
connected; Key
+15 OFF;

Typical

Value:

2,5 KOhm;

Air temperature
sensor and built-
in pressure sen-
sor. The sensor
is fitted on flow
meter in engines
with EGR.

39

02

22

ENGINE 1 - AIR
TEMPERATURE
SENSOR

EXCEED-
ING NOR-
MAL
RANGE

Problematic
cranking, smoke,
problematic ac-
celeration.

Short-circuit to
ground, excess-
ively high tem-
perature is de-
tected.

Check

wiring

and

connec-

tions.

Replace

sensor

if

re-

quired.

Measure

type:

Resistance
(KOhm)
Measure

point

1: Sensor Pin: 1
Measure

point

2: Sensor Pin: 2

Connector Not
connected; Key
+15 OFF;

Typical

Value:

2,5 KOhm;

Air temperature
sensor and built-
in pressure sen-
sor. The sensor
is fitted on flow
meter in engines
with EGR.

3A

02

93

ELECTRONIC
CONTROL
UNIT - IMMOBI-
LISER

EXCEED-
ING NOR-
MAL
RANGE

The engine fails
to start

Communication
with

Immobili-

zer ECU prob-
lems on CAN
Line.

Check integrity
of CAN Line,
run Immobilizer
ECU diagnostics
and wait for in-
dications

pro-

vided.

Measure

type:

Resistance
(Ohm)
Measure

point

1:

Diagnostic

socket. Pin: 21
Measure

point

2:

Diagnostic

socket. Pin: 22

Connector
Connected; Key
+15 OFF;

Typical

Value:

60 Ohm Ohm;