Iveco Daily. Manual — part 413
178
ELECTRIC/ELECTRONIC SYSTEM
D
AILY
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
179
D
AILY
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
D
AILY
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
181
D
AILY
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
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