Iveco Daily. Manual - part 413

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ELECTRIC/ELECTRONIC SYSTEM

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Base - May 2004

Connection between cab/bonnet cable and injection cable (Unijet)

Ref. (F1A)

Ref. (F1A

EDC16)

Cable colour

code

Function

1

5000

To pin 36 of EDC electronic control unit

2

3

8150

Fuel pump engagement relay

3

4

7740

Relay engagement for engine cooling electromagnetic joint control

4

5

9990

Air conditioning compressor switching off

I

5

6

8159

Fuel oil heating circuit switching on

I

6

8

0000

Earth

7

1

1

5577

Fuel oil heating resistance supply

8

16

8

0077

Fuel oil heating resistance earth

10

2

8150

Preheat plug centre positive (pin-86)

11

4

1310

Preheat plug centre control (pin-D1), (EDC pin-B37)

12

5

1311

Preheat plug centre control (pin-ST), (EDC pin-B42)

13

6

0000

Preheat plug centre mass (pin-31)

2

8847

Speed adjustment sensor positive

7

-

Free

9

-

Free

14

-

Free

15

-

Free

3

8150

Positive after key for air flow meter

8589

8587

7740

I

8150

9990

8159

5577

0077

0000

8159

5577

0077

0000

7740

5000

8150

9990

I F1A

0000

8159

9990

7740

8150

8847
5577

0077

0000

1311

1310

8150

8150

8150

1310

1311

0077

0000

1131

0077

0000

8150

5577

8150

1310

5577

I F1A (EDC16)

Figure 192

8588

74269

ELECTRIC/ELECTRONIC SYSTEM

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Diagnostic connector

Near the positive terminal of the battery there is a diagnostic

connector. It is fastened by 2 screws to a special bracket fitted

on  the  body  and  access  to  it  is  gained  by  unscrewing  the

protective cap; suitably connected to the diagnostic system

(IWT, MODUS), it allows quick identification of the cause of

faults in the various electronic devices.
The table on the following page shows the correspondence

between the various electronic systems and the connector

pins referring to them.

The diagnosis connector on F1A engine vehicles is located on

the conveyor unit lower party on the passenger side.

9

22

29

35

38

36

30

23

17

10

4

1

3

16

38-PIN DIAGNOSTIC CONNECTOR

DENTIFICATION OF THE PINS OF THE 38-PIN

DIAGNOSTIC CONNECTOR

38-POLE DIAGNOSIS TAKEOFF

The connector shown is seen from the pin side.

NOTE

Figure 193

Figure 194

Figure 195

85620

8621

180

ELECTRIC/ELECTRONIC SYSTEM

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Base - May 2004

System

Pin

Function

EDC/EGR/Methane

1

∗

2

L

K

ABS/EBD/ABD

3

4

L

K

Air Bag/Retarder

6

K

Tachometer (connector A cell 2 instrument cluster)

8

K

Supply +15/A services

11

Input

Immobilizer/Central door locking/Alarm

12

K

Climate control system

13

14

L

K

Self-levelling  suspension

15

16

L

K

Engine timing signal (connector B pin 28 EDC control unit)

Engine timing earth (battery -)

23

∗

24

-

Screening

Supply +30

27

Battery +V

Engine rpm

28

RPM

Vehicle speed

29

-

Earth

30

-

(*)

In vehicles equipped with F1 engine and EDC 16 electronic control unit, diagnosis connector pins 1 and 23 are free.

Pin 21/22 CAN line

ELECTRIC/ELECTRONIC SYSTEM

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High-pressure pump (F1A engine)

This pump is similar to the 8140 engine one.
It differs in Rail line pressure, modulated at between 250 and

1600 bars by the electronic centre by acting on the pressure

regulator electro valve and is not provided with a 3rd pump

cutout electro valve (78015).
Pump (3) is oriented on the pump shaft cam.
During aspiration the pump is powered via supply conduit

(5).

The amount of fuel to be sent to the pump is set by pressure

regulator (7).
The pressure regulator stops fuel inflow to the pump based

on PWM input from the centre.
During  pump  compression,  fuel  reaches  a  pressure  level

sufficient to open the pressure valve to common rail (2), and

supplies it via output (1).

1. Rail delivery output - 2. Rail delivery valve - 3. Pplunger - 4. Pump shaft - 5. Plunger supply duct - 6. Pressure regulator

supply duct - 7. Pressure regulator - 8. High-pressure pump - 9. Mechanic feed pump - A. To the tank - B. Return from

hydraulic accumulator (rail) - C. Fuel filter return - D. Delivery to hydraulic accumulator (rail) - E. From the tank 

- F. Return from injectors.

1

2

3

4

5

6

7

9

8

7

Figure 196

85846

72597