Iveco Daily Euro 4. Manual — part 252

92

ELECTRIC/ELECTRONIC SYSTEM

D

AILY

E

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4

Cable

colour code

Function

54

7772

Positive for air-conditioner compressor switched on

56

8157

Cruise Control (set +)

57

0000

Auxiliary speed limiter (where available)

58

8150

Signal from clutch switch

61

-

CAN L line

62

-

CAN H line

63

8293

Exhaust gas temperature sensor 2

64

8292

Lambda probe

65

8291

Lambda probe

66

8282

Exhaust gas temperature sensor 2

68

8156

Fuel filter heating remote-control switch positive

70

-

Compressor switching on

71

-

EDC warning light negative

72

0155

Main relay (negative)

75

5517

Vehicle speed signal (tachometer)

77

8154

Cruise Control (off)

78

8156

Cruise Control (set -)

79

8167

Coolant pressure switch

80

8158

Brake pedal signal

81

5530

Water in fuel filter

86

8294

Lambda probe

87

8293

Lambda probe

90

-

Positive for engine cooling electromagnetic joint control

91

-

Fuel electric pump remote-control switch negative

92

0000

Pre-heating warning light negative

93

1311

To pre-heating spark plug actuation remote-control switch pin ST

-

Pins not highlighted are not used

ELECTRIC/ELECTRONIC SYSTEM

93

D

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4

A new sensor which incorporates two potentiometers (no
idling switch is provided) is available on the accelerator
pedal. The ratio between the signals from the two
potentiometers is 2:1 (one potentiometer exhibits a twofold
resistance value compared with the other). Both of these
signals (V) are detected by the control unit that processes
them according to stored threshold values and manages the

injection system as an accelerator pedal position set by the
driver. (At the output of these potentiometers, a variable
voltage is available which corresponds to the potentiometer
resistance value.)

It is connected to the EDC control unit connector K pins
9-30-45-31-8-46. The potentiometers are powered with 5
V voltage supplied by the control unit itself.

EDC 16

Figure 69

85714

94

ELECTRIC/ELECTRONIC SYSTEM

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4

Two switches are present on brake pedal: one is directly
connected to pin KB0 of central unit, the other is connected
to central unit ESP8 at PIN 30.

Clutch pedal switch (42374)

An N.C. switch connected to electronic centre pin K58 is
mounted on the clutch pedal.

The “clutch pedal actuated signal” is used by the centre to
identify gear condition selected and gear shifts.

In absence of the pedal pressed switch signal, the centre
disenables the Cruise Control function.

1. Brake pedal switches

1. Clutch pedal switch

Figure 70

Figure 71

003326t

003327t

ELECTRIC/ELECTRONIC SYSTEM

95

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4

EDC central unit effects the timing of the functioning of glow
plugs pre-heating central unit depending on engine
temperature, which, in turn, activates the glow plugs.

The preheat centre contains an “intelligent” remote control
switch that sends a feed-back to the control centre for
information on any preheat centre defect or plug earth shirt
circuit.

Preheat centre pin-out
31 -

Mass

86 -

Start switch (+15)

ST -

EDC electronic centre (pin K93)

DI -

EDC electronic centre (pin K52)

30 -

Battery positive (+30)

G1 -

Preheat plugs

G2 -

Preheat plugs

G3 -

Preheat plugs

G4 -

Preheat plugs

Preheat plugs

CONTROL VALUES

With constant di 11V power supply:

- maximum current absorbed

18 A

- in 5”

11

± 1,5 A

- in 30”

6

± 0.9 A

- temperature after 7”

850

°C

- torque

8-10 Nm

PREHEAT CENTRE

ELECTRICAL DIAGRM

PREHEAT PLUS

Figure 72

Figure 73

Figure 74

003332t

003331t

75579