DescriptionThe Multijet direct injection system represents the most technologically advanced Common Rail system capable of carrying out 5 injections per cycle controling the quantity injected and the injection pressure (1350 bar max) independently of the engine rotation speed.The engine management control unit is capable of managing the introduction of small quantities of fuel (pre and post pilot injections) in addition to the main injection (the quantity of fuel injected to provide the performance requested by the driver) depending on the engine speed and load conditions, guaranteeing particularly 'soft' engine operation in all situations.To reduce exhaust emissions, an electrically activated EGR valve which is managed directly by the engine management control unit, a recirculation exhaust gas cooling system and a close coupled catalyzer have been adopted.A fixed geometry turbocharger and intercooler are responsible for the supercharging.Thanks to the electronic management described above, this engine conforms to the latest anti-pollution and continuous control regulations in accordance with the EOBD system (European On Board Diagnosis); this system permits continuous diagnosis of the vehicle components relating to emissions, and indicates to the user, by switching on the relevant warning light and displaying the message on the instrument panel, any deterioration in these components. The system is also controlled by means of special relays located in the engine compartment junction unit. The supply lines to the control unit and the various system components (sensors and actuators) are protected by special fuses, also located in the control unit.
Functional description The engine management control unit M010 receives a direct battery supply, at pin 50 connector B and an ignition-operated supply at pin 23 of the same connector.The control unit sends a negative signal, from pin 80 connector B, to the coil of relay T09, housed inside the engine compartment junction unit B001. The relay, when energized, closes its internal contact, providing a power supply:to EGR solenoid valve L030 (line protected by fuse F11);to the air flow meter K041 (line protected by fuse F11);to the heater plugs control unit M015 (line protected by fuse F11);to the engine management control unit M010, at pin 5 connector A (line protected by fuse F11);to the engine management control unit M010, at pin 5 connector B (line protected by fuse F17);to the engine management control unit M010, at pin 4, 6 connector B (line protected by fuse F22);to the relay T19, inside the engine compartment junction unit B001. The relay T19 is energized by the engine management control unit from pin 76 connector B providing the power supply for the fuel temperature sensor K081. The relay T10 is energized by the engine management control unit from pin 75 connector B providing the power supply for the electric fuel pump N040. The latter has an earth connection via the inertia switch I050. In the case of an impact, the inertia disconnects the electric pump earth, cutting off the supply of fuel. The engine management control unit M010, controls the switching on of the 'engine failure' warning light in the instrument panel E050 from pin 78 connector B. The warning light receives an ignition-operated supply from the actual instrument panel; it is switched on via a negative signal supplied by the engine management control unit. From connector A, the engine management control unit M010:from pin 15 controls the engagement of the EGR solenoid valve L030;from pins 10, 27, 40, 14 is connected to the air flow meter K041;from pins 16, 47 controls injector N070A;from pins 17, 49 controls injector N070B;from pins 31, 48 controls injector N070C;from pins 1, 46 controls injector N070D;from pins 4, 34 is connected to the fuel pressure regulator N077;from pins 8, 6 provides the supply and earth reference, respectively, for the fuel pressure sensor K083;at pin 38 receives the signal from the fuel pressure sensor K083;at pin 9 receives the (earth reference) signal from the engine oil pressure switch K028;at pins 29, 54 receives the signals supplied by the engine coolant temperature sensor/sender unit K036;from pins 25, 21 provides the supply and earth reference, respectively, for timing sensor K047;at pin 56 receives the signal supplied by the timing sensor K047;from pins 43, 59 is connected to the rpm sensor K046;from pins 23, 24 provides the supply and earth reference, respectively, for the supercharging sensor K082;at pin 41 receives the signal supplied by the supercharging sensor K082;From connector B, the engine management control unit M010:from pins 13, 261 provides the supply and earth reference, respectively, for the fuel temperature sensor K081;at pin 90 receives the signal supplied by the diesel filter water presence sensor K031; the sensor receives a power supply from the line protected by fuse F51 inside the junction unit under the dashboard B002 and is connected to the battery earth A001 connector F;at pins 1, 3 it is connected directly to the battery earth A001 connector F;at pins 70, 74 it is connected to the heater plugs control unit M015; the latter receives a direct battery supply from the line protected by fuse F71 (pin 1 connector B). At pin 1 connector A is connected to the battery earth A001 connector F, whilst the heater plugs A040 are controlled from connector C;at pin 93 the signal from the clutch pedal switch I031 is received;from pins 15, 83 the supply is provided for the two resistances inside the accelerator pedal potentiometer K055;from pins 32, 25 the earth reference is supplied for the two resistances inside the accelerator pedal potentiometer K055;at pins 41, 65 the signals supplied by the accelerator pedal potentiometer K055 are received;at pins 68, 92 the normally open (N.A.) and normally closed (N.C.) signals, respectively, supplied by the brake pedal switch I030 are received;from pin 66 it is connected, via the 'W' serial line, to the body computer node M001; the 'W' line is a recovery line which, in the case of a FIAT CODE malfunction, guarantees the operation of the vehicle (for more details see2751627SeeE7010CODE);at pin 88 it is connected to the diagnostic socketSee E8010 DIAGNOSTIC MULTIPLE CONNECTOR ;at pin 79 it sends a negative signal to the relay coil controlling the engagement of the compressor2751614SeeE6021COMPRESSOR ENGAGEMENT; From connector C, the engine management control unit is connected to earth C060.After the engine has started, the varioius sensors used in the supply system are supplied directly from the engine control unit, exchanging with it all the data relating to their operation.The engine management control unit is connected via the CAN:from pins 58, 59 connector B to the B CAN communicating with the body computer node M001 See E1050 CAN CONNECTION LINES ;from pins 40, 64 it is connected to the C CANSee E1050 CAN CONNECTION LINES .Via these two lines, the engine management control unit sends/receives the signals provided by the various sensors, used in the system.
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Move the positive battery terminal protective cover aside.2. Undo the fixing n uts (2a) and disconnect the battery's negativeterminal (2b) and positive terminal (2c).3. Undo the nut (3a) of the battery attachment belt (3b) and removeit.2046956
5530B52
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212752965-5530B10battery - r+r2752967-5530B56BATTERY DRIP TRAY COVER - R.R.1. Disconnect the electrical connections for the engine managementcontrol unit. 2. Undo the fixing bolt (2a) and disconnect the earth lead (2b).2046957
5530B56
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212752965-5530B10battery - r+r1. Remove the battery cage cover from its seating on the cage.2046959
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negative terminal.1. Disconnect the electrical connection from the air flow meter. 2. Loosen the band and disconnect the the turbocharger air inletsleeve from the rigid pipe, air flow meter side.2064832
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Remove the cable pass on the right side of the vehicle from itsseating and open the cover.2. Remove the adhesive tape (2a) present on the wiring (2b) andrelease the windscreen/rear window washer tubes (2c).Release the wiring from the cable pass.Following the same procedure, release thewiring from the cable pass on the left of the vehicle.2046933
5505C34
768769
5505C35
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Disconnect the aerial coaxial cable connections.2. Disconnect the electrical connections (2a), (2b), (2c), (2d),(2e) and (2f).2046939
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negativeterminal.2753183-7040A23frame of instrument panel on facia - r r1. Undo the retaining bolts.Partially remove the instrument panel.2. Disconnect the electrical connection.3. Remove the instrument panel.2046983
767It is not possible toorder a single lock barrel or to order barrels using only the partcode. When ordering barrels, observe the special procedure set outin operation 5580 - Special Accessories. 768769
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Disconnect the electrical connection.2. Rotate and remove the switch on the brake pedal.2046979
5550D16
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negativeterminal.1. Undo the retaining bolts.2. Disconnect the electrical connection.3. Remove the third brake light complete with surround.2046980
5550D17
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negativeterminal.2752991-5550D16third stop light - r+r1. Disengage the clip (1a) and remove the bulb holder (1b).2. Remove the bulb concerned.2046982
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negative terminal.Move the load carrying compartment liningaway from the work area.1. Undo the rear bolts fixing the rear seat cushion.2046189
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Position the vehicle on the ramp.1. Undo the fuel filler pipe cap and remove it.2. Undo the bolts (2a) fixing the fuel filler pipe (2b).2046198
1040A32
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Place the car on a lift.Raise the car.1. Open the fastening bands (1a) and release and remove the hose(1b).2046200
1040A40
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Open the fuel flap.Undo the fuel filler cap and remove it.
1040A70
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negative terminal.Move the load carrying compartment liningaway from the work area.1. Undo the rear bolts fixing the rear seat cushion.2046201
1040A74
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negative terminal.Place the driver's front seat in the endof travel position.1. Undo the fixing bolts (1a) and disconnect the electrical connection(1b). 2. Remove the inertia switch.2046205
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Withdraw the oil level dipstick.2. Undo the bolts (2a) and remove the engine oil dipstick pipe (2b),after releasing the band from the electrical wiring.2064569
1084A42
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Position the vehicle on a lift.Disconnect the battery negative terminal.Raise the car.1. Disconnect the electrical connection for the engine oil pressureswitch.2. Undo and remove the engine oil pressure warning light switch.2046246
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negative terminal.2752486-1048A10air cleaner filtering element - replace1. Release the accelerator cable (1b) working on the throttle valve(1a).2. Disconnect the accelerator cable from the mounting bracket.2046218
1056B50
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negative terminal.2752486-1048A10air cleaner filtering element - replace1. Open the fastening clips and release the wiring.2. Undo the fixing nuts (2a) and remove the wiring mounting bracket(2b).2046220
1056B54
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negative terminal.2752486-1048A10air cleaner filtering element - replace1. Disconnect the electrical connection for the air temperaturesensor.2. Undo the fixing bolt (2a) and remove the integrated air temperaturesensor (2b).2046222
1056B60
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negative terminal.2752486-1048A10air cleaner filtering element - replace1. Release the accelerator cable (1b), working on the throttle valve(1a).2. Disconnect the accelerator cable from the mounting bracket.2046223
<anchor>1</anchor><span>Refitting</span><icon><imageid>21</imageid></icon>0Removing20Fit the engine management control unitin place and tighten the fixing bolts. Connect the electrical connections forthe engine management control unit.Connect the earth lead and tighten thefixing bolt.Connect the battery negative terminal.
pressure pump electric control
1060G10
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negative terminal.1. Disconnect the electrical connection from the air flow meter. 2. Loosen the band and disconnect the the turbocharger air inletsleeve from the rigid pipe, air flow meter side.3. Undo the bolts (3a) and remove the air flow meter (3b).2064495
1060G14
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Remove the car from the ramps.1. Loosen the band and disconnect the lower radiator coolant outlethose from the radiator, engine oil heat exchanger end.767Collect the engine coolant ina suitable container.2064496
1060G16
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negative terminal.1. Disconnect the electrical connection from the air flow meter. 2. Loosen the band and disconnect the air inlet hose to the turbocharger.2064499
1060G20
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negative terminal.1. Disconnect the electrical connection for the rpm sensor.2. Undo the bolt (2a) and remove the engine rpm sensor (2b). 2064502
1060G22
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Remove the car from the ramps.Disconnect the battery negative terminal.1. Disconnect the electrical connection from the air flow meter. 2. Loosen the band and disconnect the the turbocharger air inletsleeve from the rigid pipe, air flow meter side.2064504
1060G28
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negative terminal.1. Disconnect the electrical connection from the air flow meter. 2. Loosen the band and disconnect the the turbocharger air inletsleeve from the rigid pipe, air flow meter side.2064507
1060G80
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Undo the fixing nuts (1a), disconnect the electrical connections(1b) and remove the engine management control unit (1c).2064511
1060G90
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Remove the car from the ramps.2752965-5530B10battery - r+r2752966-5530B52Battery DRIP TRAY/SUPPORT - R.R.1. Disconnect the electrical connection from the air flow meter. 2. Loosen the band and disconnect the the turbocharger air inletsleeve from the rigid pipe, air flow meter side.2064512
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Place the car on a lift.Disconnect the battery negative terminal.Raise the car.1. Undo the retaining bolt.2. Disconnect the electrical connection (2a) and remove the rpmsensor (2b). 2046943
5510C30
<anchor>1</anchor><span>Refitting</span><icon><imageid>21</imageid></icon>0Removing20Place the timing sensor in position andtighten the fixing bolt.Connect the electrical connection.Connect the battery negative terminal.
5510C42
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Place the car on a lift.Disconnect the battery negative terminal.Raise the car.1. Disconnect the electrical connection.2. Undo the fixing bolt (2a) and remove the detonation sensor (2b). 2046945
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Release the accelerator cable from the pedal.2. Undo the fixing nuts (2a) and remove the pedal (2b).2046229
1068A15
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Release the accelerator cable from the pedal.2. Unscrew nuts (2a) and remove accelerator pedal (2b) from the passenger compartment.169001847
1068A20
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negative terminal.1. Disconnect the electrical connection for the accelerator pedalpotentiometer. 2. Undo the fixing nuts (2a) and remove the accelerator pedal withpotentiometer incorporated (2b).2064534
1068A22
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negative terminal.1. Disconnect the electrical connection for the accelerator pedalpotentiometer. 2. Undo the fixing nuts (2a) and remove the accelerator pedal withpotentiometer incorporated (2b).2064271
1068A30
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212752486-1048A10air cleaner filtering element - replace1. Release the accelerator cable (1b) working on the throttle valve(1a).2. Disconnect the accelerator cable from the mounting bracket.2046230
1068A31
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Working from inside the vehicle, disconnect the cable from the accelerator pedal.169001848
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Remove the car from the ramps.2752965-5530B10battery - r+r2752966-5530B52Battery DRIP TRAY/SUPPORT - R.R.1. Disconnect the electrical connection from the air flow meter. 2. Loosen the band and disconnect the air inlet hose to the turbocharger.2064546
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Disengage the fixing lugs (1a) and remove the cover (1b).2046919
5505A32
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negativeterminal.2753188-7040A37fuse box cover - r r1. Undo the retaining bolts.Disconnect the electrical connections.2. Remove the body computer.2046922
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negative terminal.2752609-1060G22cam angle sensor - r r . 1. Disconnect the electrical connections from the injectors.2. Undo the bolts (2a) and move the electrical wiring (2b) aside.2064469
1060F20
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negative terminal.1. Disconnect the electrical connection from the air flow meter. 2. Loosen the band and disconnect the air inlet hose to the turbocharger.2064474
1060F30
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negative terminal.1. Disconnect the electrical connection from the air flow meter. 2. Loosen the band and disconnect the air inlet hose to the turbocharger.2064478
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negative terminal.1. Disconnect the electrical connection from the air flow meter. 2. Loosen the band and disconnect the air inlet hose to the turbocharger.2064487
1060F52
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negative terminal.1. Disconnect the electrical connection from the air flow meter. 2. Loosen the band and disconnect the the turbocharger air inletsleeve from the rigid pipe, air flow meter side.2064492
diesel pressure pump
1060E10
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212752965-5530B10battery - r+r . 2752966-5530B52Battery DRIP TRAY/SUPPORT - R.R. . 2752743-3330D30vacuum pump - r+r . 1. Disconnect the rapid connector for the fuel supply pipe fromthe fuel filter to the pressure pump, pressure pump side.2. Undo the connectors (2a) and remove the pipe from the pressurepump to the fuel manifold (2b).767When refitting, fit a new pipefrom the pressure pump to the fuel manifold. 3. Loosen the band and disconnect the fuel return pipe from thepressure pump, pressure pump side.2064461
1060E50
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negative terminal.1. Disconnect the electrical connection from the air flow meter. 2. Loosen the band and disconnect the the turbocharger air inletsleeve from the rigid pipe, air flow meter side.2064465
