DescriptionTo increase protection against theft attempts, an electronic immobilizer system known as the 'FIAT CODE' system has been adopted.All the keys are equipped with an electronic transponder which transmits a coded signal to a special electronic control unit in the Body Computer. This allows the engine to be started if the code is recognised.The code used in the communication, which takes place via aerial, changes each time the car is started up (rolling code). The code cannot therefore be reproduced, even with electronic scanners.The main function of the Code control unit is to identify the code in the ignition key. The control unit contains a secret code which is used to communicate with the key Transponder. all the codes for the enabled keys and the code used in the dialogue with the engine management control unit are stored in the unit memory.When the key is turned ON the first time, if the key is correctly recognized, this code is transferred to the engine management control unit which remains indelibly linked to the Code unit and, therefore, to the Body Computer.The dialogue between the two units takes place via the CAN and a two-way recovery serial line (W line), used if there is a CAN failure.The Body Computer makes the information which lights up the special CODE failure warning light in the instrument panel through the CAN. For more details 2398714Characteristic of working principle5580Eanti-theft device .
Functional description The CODE unit inside Body Computer M1 is supplied from the battery from the line for fuse F1 of B1 pin 18 of connector F, while the ignition-operated power supply (INT) reaches pin 9. The line leading from pin 29 of connector B of the Body Computer M1 is a serial line W leading to engine management unit M10 - which is responsible for the communication required for identifying the key and exchanging codes. This communication takes place via the CAN network in the case of normal operation from pins 36 and 37 of connector B of M1. Body Computer M1 is linked to instrument panel E50, via the CAN line to manage the CODE failure warning light: if there is a system failure or an unprogrammed system is detected, the information is also shown on the display. The aerial of CODE device P91 is connected via two leads to the CODE unit of M1 , at pins 4 and 5 of connector A; The aerial is located coaxially on the ignition switch so that it can register key insertion and activation.
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Open the bonnet lid.1. Release the retainers (1a) and remove the cover (1b).2050746
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400802-7040A37fuse box cover - r r1. Disconnect the electrical connections (1a, 1b, 1c, 1d, 1e, 1f).2. Undo the bracket retaining bolt.3. Slightly move the bracket (3a) for the dashboard trim and undothe bolt (3b).4. Undo the other bolts securing the body computer/junction unit.5. Slightly move the body computer/junction unit assembly.6. Disconnect the electrical connections (6a, 6b, 6c).7. Recover the body computer/junction unit.2050752
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Disconnect electronic control unit electrical connections (1a),(1b), (1c).2. Undo the bolts.3. Recover the control unit.2050753
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Disconnect electronic control unit electrical connections (1a),(1b), (1c).2. Undo the bolts.3. Recover the control unit.2050754
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the negative battery terminal (-). Proceed with removal 2400123-1048A32sleeve from air cleanerto intake manifold - r + r1. Disconnect the electrical connection from the throtle body integratedwith the M.D.S.2. Undo the bolts (2a) and move the mounting bracket (2b) aside,complete with injection-ignition system control unit (2c). 3. Undo the remaining bolt (3a) and remove throttle body with integralMDS (3b) 2049708
1056B50
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the negative battery terminal (-). Proceed with removal 2400123-1048A32sleeve from air cleanerto intake manifold - r + r1. Disconnect the electrical connection from the engine coolanttemperature sensor.2. Undo and remove the engine coolant temperature sensor.2049709
1056B51
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the negative battery terminal (-). Proceed with removal 2400120-1048A10air cleaner filtering element- replace1. Disconnect the electrical connection from the cam angle sensor. 2. Undo the bolt (2a) and remove the cam angle sensor (2b). 2049710
1056B54
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the negative battery terminal (-). 1. Disconnect the electrical connection from the intake air temperature/pressuresensor.2. Undo the bolts (2a) and remove the intake air temperature/pressuresensor (2b).2049711
1056B60
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the negative battery terminal (-). Proceed with removal 2400120-1048A10air cleaner filtering element- replace1. Undo the fuel manifold pipe protective plug (1a) and use tool(1b) to drain fuel system pressure. 23Recover the fuel which comes outin a suitable container. 2. Disconnect the rapid attachment for the fuel supply pipe fromthe fuel manifold pipe.3. Disconnect the electrical connections from the injectors.Release the injector electrical wiringfrom the fixings and move it aside. 2049712
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Remove the safety clip.2. Remove the injector.2049714
1056B78
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the negative battery terminal (-). 1. Disconnect the electrical connection from the switch on the clutchpedal. 2. Rotate and remove the switch on the clutch pedal.2049715
1056B82
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the negative battery terminal (-). 1. Disconnect the electrical connections (1a) and (1b) from theinjection/ignition system control unit. 2. Undo nut (2a) and disconnect earth lead (2b) from the injection-ignitionsystem control unit. 3. Undo the remaining nuts (3a) and remove injection/ignition controlunit (3b) from the bracket. 2049716
1056B87
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the negative battery terminal (-). Proceed with removal 2400134-1056B82injection/ignition systeme.c.u. (one) - r + r1. Undo the bolts (1a) and remove the injection/ignition controlunit mounting (1b).2049717
1056B90
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Position the vehicle on the ramp Proceed with removal 2400577-5530B10battery - r+r Proceed with removal 2400580-5530B52Battery DRIP TRAY/SUPPORT- R.R. Proceed with removal 2400120-1048A10air cleaner filtering element- replace1. Loosen the band and disconnect the engine oil vapour intake pipeand the side of the sleeve from the air cleaner to the intake manifold2. Loosen the band, disconnect the hose from the air filter to theintake manifold, intake manifold side and remove it.2049718
pressure pump electric control
1060G10
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the negative battery 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).2050095
1060G14
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Position the vehicle on the ramp Proceed with removal 1. Loosen the band and disconnect the lower radiator coolant outlethose from the radiator, radiator side.23Collect the engine coolant ina suitable container.2050096
1060G16
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the negative battery 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.2050099
1060G20
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the negative battery terminal (-). 1. Disconnect the electrical connection for the rpm sensor.2. Undo the bolt (2a) and remove the engine rpm sensor (2b). 2050102
1060G22
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Position the vehicle on the rampEnsure that the ignition key is in theOFF position, then disconnect the negative battery 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.2050104
1060G28
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the negative battery 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.2050107
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the negative battery 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.2050115
1060G90
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Position the vehicle on the ramp Proceed with removal 2400577-5530B10battery - r+r Proceed with removal 2400580-5530B52Battery 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.2050119
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Undo the bolts.2. Remove the bottom trim (2a). To facilitate the removal of thetrim, move the steering column as appropriate, after disengagingthe steering column position adjustment lever (2b). 2050876
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