Wiring Diagram - DIESEL ENGINES ELECTRONIC MANAGEMENT - Fiat DUCATO 2.8 JTD 8V da 03/05
Components - DIESEL ENGINES ELECTRONIC MANAGEMENT - Fiat DUCATO 2.8 JTD 8V da 03/05
| Component code | Description | Reference to the assembly |
| B001 | JUNCTION UNIT | 5,505A |
| B002 | JUNCTION UNIT UNDER DASHBOARD | - |
| B099 | MAXI FUSE BOX ON BATTERY | - |
| B100 | HEAT FLANGE FUSE | - |
| C010 | LEFT FRONT EARTH | - |
| C040 | ENGINE EARTH | - |
| C090 | HEAT FLANGE EARTH | - |
| D001 | FRONT/DASHBOARD COUPLING | - |
| D004 | FRONT/ENGINE COUPLING | - |
| D097 | SHORT CIRCUITING COUPLING | - |
| D145 | FRONT/CILC (FUEL LEVEL GAUGE CIRCUIT) COUPLING | - |
| D186 | FRONT/ABS COUPLING | - |
| E050 | INSTRUMENT PANEL | 5,560B |
| H001 | IGNITION SWITCH | |
| I050 | INERTIA SWITCH | |
| J130 | HEAT - FLANGE RELAY | - |
| J131 | THERMAL STARTER RELAY | - |
| K035 | DO NOT USE SENDER UNIT | - |
| K036 | ENGINE COOLANT TEMPERATURE SENSOR/SENDER UNIT | - |
| K041 | AIR FLOW METER | - |
| K046 | RPM SENSOR | - |
| K047 | TIMING SENSOR | - |
| K055 | ACCELERATOR PEDAL POTENTIOMETER | - |
| L005 | INJECTION PUMP THIRD PISTON DEACTIVATION SOLENOID VALVE | - |
| L030 | EGR SOLENOID VALVE | - |
| L085 | INJECTION PUMP THIRD PISTON DEACTIVATION SOLENOID VALVE | - |
| M010 | ENGINE MANAGEMENT ECU | - |
| M050 | ABS CONTROL UNIT | - |
| N041 | FUEL PUMP AND EPIC LEVEL GAUGE | 1,040A |
| N070 | INJECTOR | 1056B |
| N077 | FUEL PRESSURE REGULATOR | 1060E |
| O003 | HEAT - FLANGE | - |
| O004 | THERMAL STARTER RESISTANCE | - |
| O007 | OIL VAPOUR HEATING RESISTANCE | - |
| O020 | Diesel heating resistance | - |
Component location - DIESEL ENGINES ELECTRONIC MANAGEMENT - Fiat DUCATO 2.8 JTD 8V da 03/05
| Component code | Description | Reference to the assembly |
| B001 | JUNCTION UNIT | 5,505A |
| B002 | JUNCTION UNIT UNDER DASHBOARD | - |
| B099 | MAXI FUSE BOX ON BATTERY | - |
| B100 | HEAT FLANGE FUSE | - |
| C010 | LEFT FRONT EARTH | - |
| C040 | ENGINE EARTH | - |
| C090 | HEAT FLANGE EARTH | - |
| D001 | FRONT/DASHBOARD COUPLING | - |
| D004 | FRONT/ENGINE COUPLING | - |
| D097 | SHORT CIRCUITING COUPLING | - |
| D145 | FRONT/CILC (FUEL LEVEL GAUGE CIRCUIT) COUPLING | - |
| D186 | FRONT/ABS COUPLING | - |
| E050 | INSTRUMENT PANEL | 5,560B |
| H001 | IGNITION SWITCH | |
| I050 | INERTIA SWITCH | |
| J130 | HEAT - FLANGE RELAY | - |
| J131 | THERMAL STARTER RELAY | - |
| K035 | DO NOT USE SENDER UNIT | - |
| K036 | ENGINE COOLANT TEMPERATURE SENSOR/SENDER UNIT | - |
| K041 | AIR FLOW METER | - |
| K046 | RPM SENSOR | - |
| K047 | TIMING SENSOR | - |
| K055 | ACCELERATOR PEDAL POTENTIOMETER | - |
| L005 | INJECTION PUMP THIRD PISTON DEACTIVATION SOLENOID VALVE | - |
| L030 | EGR SOLENOID VALVE | - |
| L085 | INJECTION PUMP THIRD PISTON DEACTIVATION SOLENOID VALVE | - |
| M010 | ENGINE MANAGEMENT ECU | - |
| M050 | ABS CONTROL UNIT | - |
| N041 | FUEL PUMP AND EPIC LEVEL GAUGE | 1,040A |
| N070 | INJECTOR | 1056B |
| N077 | FUEL PRESSURE REGULATOR | 1060E |
| O003 | HEAT - FLANGE | - |
| O004 | THERMAL STARTER RESISTANCE | - |
| O007 | OIL VAPOUR HEATING RESISTANCE | - |
| O020 | Diesel heating resistance | - |
Description - DIESEL ENGINES ELECTRONIC MANAGEMENT - Fiat DUCATO 2.8 JTD 8V da 03/05
An electronic control system supervises and governs all engine parameters to optimise performance and fuel consumption by means of a real-time response to different service conditions.The Diesel engine is equipped with a UNIJET COMMON RAIL injection system. This features the use of an electronically controlled high injection pressure. The supply of fuel, known as the pilot injection, is optimized by the electronic control unit by means of the injector rather than managed by the pump.Depending on the signals received from numerous sensors, the control unit controls the injectors connected to it managing the following systems:fuel supply;air supply;heater plugs;accelerator pedal;engine cooling;fuel preheating.
The system is also controlled by dedicated relays in the engine bay control unit. Lines supplying the control unit and various system components (sensors and actuators) are protected by dedicated fuses that are also located inside the engine bay.
Operational Description - DIESEL ENGINES ELECTRONIC MANAGEMENT - Fiat DUCATO 2.8 JTD 8V da 03/05
Engine management control unit M010 controls and governs the entire electronic ignition and injection system.Engine bay control unit B001 houses fuses F02, F11, F17, F18, F20, F21, F22, and relays T19, T09, T10, designed to protect and control the supply to engine management unit M010 and the various sensors and solenoids.Main injection relay T09 controls the entire system: it is energized by an earth signal from pin 13 of connector A of engine control unit M010 and then forwards a power supply:to pin 4 of the control unit via the line of fuse F17 of B001;to pin 5 of the control unit via the line of fuse F22 of B001;to sensors: L005, L062, L030, K041, L085;thermal starter O004.
Fuel pump relay T10 of B001 is supplied by the line of fuse F21.This is energized by a control signal (earth) from pin 24 of control unit M010 and supplies power to fuel pump and EPIC level gauge N041.Pins 1, 2 and 3 of M10 are earthed.Diesel preheating relay T19 is supplied by the line protected by fuse F20.This is excited by a control signal (earth) from pin 110 connector B of control unit M10 and supplies power to diesel heater coil O020.Relay J131 governs the power supply thermal starter coil O004. The power supply to the relay comes from a line protected by fuse F11. Engine management unit M010 excites the coil of J131 via an earth signal from pin 15 of connector A. The power supply supplied to coil O004 comes directly from the battery and is protected by fuse F02.Alternatively, the diesel is preheated by means of the HEAT-FLANGE system. The system heats air coming into the input manifold by means of a glow coil. Relay J131 receives an earth signal from engine management unit M010 - pin 15 connector A - and supplies power supply direct from the battery to resistance device O003. A dedicated fuse F74 protects the power supply from the resistance load.Control unit M010 receives signals from the various sensors in order to control all engine service parameters.Engine temperature sensor K036 communicates with engine management unit M010 at pins 82 and 83 of connector B.Air flow meter K041 receives a general power supply from fuse F11 of B001. It receives a reference voltage from pin 88 of M010. This is supplied by the control unit from pin 97 of M010 and sends a signal proportional to the air flow to pin 89. An air temperature sensor, also housed in K041, sends an air temperature signal to pin 86 of M010.Accelerator pedal K055 contains two integral potentiometers (a main one and a safety one).The former receives power and an earth signal from pins 78 and 76 of M010 respectively and sends a corresponding signal to pin 77. The latter receives power and an earth signalfrom pins 81 and 79 respectively and sends a signal to pin 80.EGR solenoid L030 controls exhaust gas recirculation. It is supplied by a line protected by fuse F11 and is controlled by a signal from pin 16 connector A of M010.The solenoid on throttle body L062 reduces and closes the throttle opening, e.g. when the engine is turned off. It is supplied by a line protected by fuse F11 and is controlled by a signal from pin 15 connector A of M010.Injectors N070 receive a power supply to enable opening from pins 117 (cylinders 1 and 2) and 118 (cylinders 3 and 4) of M010.The engine management unit sends a command to injectors N070 from 119, 120, 121 and 114 for cylinders 1, 2, 3 and 4 respectively.The engine management control unit M010 is connected from pins 99, 100 and 102, 103, 104 with the rpm sensor. K046 and with the timing sensor K047.Engine management unit M010 is equipped with a CAN connection - from pins 9 and 10 connector A - to ABS control unit M050 - pins 29 and 30 -.Engine management unit M010 governs activation of the warning lights on instrument panel E050 from pins 21 and 14 of connector A if the injection system malfunctions.JUNCTION UNIT
B001A
B001A
B001A
B001A
B001A
B001A
B001A
B001A
B001A
B001A
B001A
B001A
B001A
B001A
B001B
B001B
B001C
B001C
B001D
B001E
B001E
B001E
B001E
B001E
B001E
B001E
B001E
B001E
B001E
B001F
JUNCTION UNIT UNDER DASHBOARD
B002A
B002B
B002C
B002D
MAXI FUSE BOX ON BATTERY
B099A
B099A
B099A
B099B
B099C
B099D
B099D
B099D
B099D
B099E
B099E
B099E
B099E
B099F
B099F
B099F
B099G
B099H
B099H
B099I
HEAT FLANGE FUSE
B100A
B100A
B100A
B100A
B100B
B100B
B100B
B100B
LEFT FRONT EARTH
C010
C010
C010
C010
C010
C010
ENGINE EARTH
C040
C040
C040
C040
C040A
C040A
C040A
C040A
C040A
C040A
C040A
C040A
C040B
C040B
C040B
C040B
C040B
C040B
HEAT FLANGE EARTH
C090
C090
C090
FRONT/DASHBOARD COUPLING
D001A
D001A
D001A
D001A
D001A
D001A
D001A
D001A
D001A
D001A
D001A
D001B
D001B
D001B
D001B
D001B
D001B
D001B
FRONT/ENGINE COUPLING
D004A
D004A
D004A
D004A
D004A
D004A
D004A
D004A
D004A
D004A
D004A
D004A
D004A
D004A
D004A
D004A
D004A
D004A
D004A
D004A
D004A
D004A
D004B
D004B
D004B
D004B
D004B
D004B
D004B
D004B
SHORT CIRCUITING COUPLING
D097A
D097B
D097C
D097D
D097E
D097E
D097E
D097E
D097E
D097F
D097F
D097F
D097F
D097G
D097H
D097I
D097L
D097L
D097L
D097L
D097L
D097M
FRONT/CILC (FUEL LEVEL GAUGE CIRCUIT) COUPLING
D145
D145
D145
D145
D145
D145
D145
FRONT/ABS COUPLING
D186A
D186A
D186A
D186B
D186B
D186B
D186C
D186C
D186C
D186C
D186C
D186C
INSTRUMENT PANEL
E050A
E050B
E050C
E050D
E050E
IGNITION SWITCH
H001A
H001A
H001A
H001A
H001A
H001B
INERTIA SWITCH
I050
I050
I050
I050
I050
I050
I050
HEAT - FLANGE RELAY
J130A
J130A
J130A
J130A
J130B
J130C
J130C
J130C
J130C
THERMAL STARTER RELAY
J131
J131
DO NOT USE SENDER UNIT
K035
K035
K035
K035
K035
ENGINE COOLANT TEMPERATURE SENSOR/SENDER UNIT
K036
K036
K036
K036
K036
K036
K036
K036
K036
K036
AIR FLOW METER
K041
K041
K041
K041
RPM SENSOR
K046
K046
K046
K046
K046
K046
K046
K046
TIMING SENSOR
K047
K047
K047
K047
K047
K047
K047
K047
K047
K047
ACCELERATOR PEDAL POTENTIOMETER
K055
K055
K055
K055
K055
K055
INJECTION PUMP THIRD PISTON DEACTIVATION SOLENOID VALVE
L005
L005
L005
L005
L005
EGR SOLENOID VALVE
L030
L030
L030
L030
INJECTION PUMP THIRD PISTON DEACTIVATION SOLENOID VALVE
L085
L085
ENGINE MANAGEMENT ECU
M010A
M010A
M010A
M010A
M010A
M010A
M010A
M010A
M010A
M010A
M010A
M010A
M010A
M010B
M010B
M010B
M010B
M010B
M010B
M010B
M010B
M010B
M010B
M010B
M010B
M010C
M010C
M010C
M010C
ABS CONTROL UNIT
M050
M050
M050
FUEL PUMP AND EPIC LEVEL GAUGE
N041
INJECTOR
N070A
N070A
N070A
N070A
N070A
N070A
N070A
N070A
N070A
N070A
N070B
N070B
N070B
N070B
N070B
N070B
N070B
N070B
N070B
N070B
N070C
N070C
N070C
N070C
N070C
N070C
N070C
N070C
N070C
N070C
N070D
N070D
N070D
N070D
N070D
N070D
N070D
N070D
N070D
N070D
FUEL PRESSURE REGULATOR
N077
N077
N077
N077
N077
N077
HEAT - FLANGE
O003A
O003A
O003B
O003B
O003B
THERMAL STARTER RESISTANCE
O004
O004
OIL VAPOUR HEATING RESISTANCE
O007
O007
O007A
O007A
O007A
O007A
O007A
O007A
O007A
O007A
O007A
O007A
O007A
O007A
O007B
O007B
Diesel heating resistance
O020
O020
O020
O020
O020
O020A
O020B
