DescriptionThe engine radiator and air conditioner condenser cooling system consists of two fans connected in parallel.These are operated together at two different speeds by the same software.the first speed is activated at a first coolant temperature level or at a certain air conditioner coolant pressure.the second speed cuts in at a higher temperature or pressure threshold.The fans are operated by means of three specific relays, one external and two located in the engine compartment junction unit. The fan supply line is protected by two specific fuses, located in the engine compartment unit.
Functional description The power supply to both fans N11 and N12 (always operated in parallel) is controlled by three relays J30 (1st speed) external and T6 and T7 (2nd speed), located inside junction unit B1. Relays J30, T6 and T7 are supplied by the lines protected by fuses F6 and F7 of engine compartment junction unit B1. Relay J30 has a coil supplied by the line for fuse F18 of junction unit B1 The relays are energized by a control signal - earth - coming from the engine control unit M10, pins 69 and 90 of connector A. If the engine coolant reaches a first temperature level or sensor K10 signals to control unit M10 pin 42 of connector A that a certain pressure level has been reached, then control unit M10 sends a signal from pin 90 of connector A which energizes the fan 1st speed relay J30 which then sends a supply to the two fans N11 and N12 via the additional resistances O10 and O12 so that the fans turn at the first speed (slow). If the coolant reaches a higher temperature level, or the fan linear sensor K10 indicates to the control unit M10 pin 81 of connector A that a higher pressure has been reached, the control unit M10 sends a signal - from pin 19 of connector A - to the fan 2nd speed relays T5 and T7 of B1, which directly send the supply to the fans N11 and N12: the fan then turns at the maximum speed.
0Removing201Refitting213314824-5505A18multi-function controlunit - r r . 1. Undo the bolt (1a) and push back the junction unit as far asnecessary to disconnect the electrical connections (1b).767For precise identification ofthe electrical connections, see Wiring Diagrams Section.2. Remove the junction unit.2010592
0Removing201Refitting21 Make sure that the ignitionis off (STOP position), then disconnect the negative battery terminal(refer to op. 33148615530B10battery - r+r ). 1. Unscrew bolt (1a) and open fuse access cover (1b).2. Undo the bolt (2a) and remove the integrated multiservices unit(2b) after having disconnected the electrical connections (2c),(2d), (2e), (2f) and (2g).2010595
5505A29
0Removing201Refitting21Open the bonnet lid.1. Release the retainers (1a) and remove the cover (1b) for theadditional junction unit.2071293
0Removing201Refitting213314864-5530B54battery cover - r+r . Make sure that the ignition key is in theOFF position.1. Disconnect the battery negative and positive terminals.2. Undo the bolt (2a) fixing the battery retaining bracket (2b).3. Remove the battery.2010647
5530B40
0Removing201Refitting213314864-5530B54battery cover - r+r1. Press and release the retainers (1a), then remove the cover (1b)for the supply box on the battery. 2071303
0Removing201Refitting21 Make sure that the ignitionis off (STOP position), then disconnect the negative battery terminal(refer to op. 33148615530B10battery - r+r ). 3314767-5040A10Air conditioning refrigerant CIRCUIT - Draining andRefilling . 1. Disconnect the electrical connection for the air conditioningsystem multi-stage pressure switch.2. Undo and remove the air conditioning system multi-stage pressureswitch.2010547
0Removing201Refitting21 Make sure that the ignition is off (STOPposition), then disconnect the negative battery terminal (referto op. 33148615530B10battery - r+r ). 3314048-1016A40ignition coil cover on cylinder head- r+r . 3314111-1048A48throttle heater sleeve - r r . 1. Disconnect the electrical connection from the butterfly casingintegrated with the M.D.S.2. Disconnect the electrical connections (2a) and (2b) from theinjection/ignition control unit and the earth lead (2c) from thebutterfly casing integrated with the M.D.S.3. Disconnect the accelerator cable from the butterfly casing integratedwith the M.D.S.4. Disconnect the injection/ignition wiring from the mounting bracket.5. Undo the bolts (5a) and remove the butterfly casing integratedwith the M.D.S. (5b) complete with the injection/ignition controlunit (5c).2007326
1056B21
0Removing201Refitting21 Ensure that the ignition key is in OFFposition, then disconnect the battery negative terminal ( 3314861-5530B10battery - r+r ). Proceed with the removal 3315197-7040D14engine bay rear sidecover (one) lh or rh - r r (Right side). 1. Loosen the band (1a) and disconnect the oil vapour recirculationpipe (1b) from the corrugated hose.2. Loosen the bands (2a) and remove the hose between resonator andthrottle body (2b), complete with resonator (2c).2007327
1056B48
0Removing201Refitting21 Make sure that the ignition is off (STOPposition), then disconnect the negative battery terminal (referto op. 33148615530B10battery - r+r ). 3314048-1016A40ignition coil cover on cylinder head- r+r . 1. Disconnect the electrical connection from the phase transformerelectro-magnet.2. Undo the bolts (2a) and remove the phase transformer electro-magnet(2b).2007334
1056B50
0Removing201Refitting21 Make sure that the ignition is off (STOPposition), then disconnect the negative battery terminal (referto op. 33148615530B10battery - r+r ). 3314110-1048A28vacuum air circuit resonator pipe - r+r1. Disconnect the electrical connection from the engine coolanttemperature sensor.2. Undo and remove the engine coolant temperature sensor.2007335
0Removing201Refitting21 Make sure that the ignition is off (STOPposition), then disconnect the negative battery terminal (referto op. 33148615530B10battery - r+r ). 3314048-1016A40ignition coil cover on cylinder head- r+r . Discharge the fuel supply pressure (seeGroup 10 Warnings).1. Disconnect the rapid attachment for the fuel supply pipe.2. Disconnect the electrical connections from the injectors (2a)and the electrical connection from the phase transformer electro-magnet(2b).3. Undo the two bolts (3a) and remove the single fuel manifold pipe(3b) complete with injectors (3c).2007337
1056B68
0Removing201Refitting211. Remove the clips (1a) and remove the injectors (1b) from thesingle fuel manifold pipe.2. Remove the seals from the injectors.2007338
Make sure that the ignition key is in theOFF position. Check that: the air conditioning is switchedoff, the accelerator pedal is never pressed and the accelerator cableis correctly positioned (refer to op. 33141321068A30accelerator control cable - r + r ). Connect the tool to the diagnostic socketand place the knob in position 3.Connect the Examiner diagnostic equipment.Connect the Examiner diagnostic equipment.Using the Examiner, enter the "ControlUnit Test" ambient.Place the ignition key in the ON position.Using the Examiner, enter the "ActiveDiagnosis" ambient, then select "Reset self-adjustmentparameters" and "Idle actuator".Using the Examiner, press "Carry outactive diagnosis".Place the ignition key in the OFF positionand wait for 30 seconds.Place the ignition key in the ON positionand wait for 30 seconds.Using the Examiner, re-establish the dialoguewith the engine control system.Using the Examiner, enter the "Parameters"ambient and select the following tests from the menu - "Idle recognitiontest - carried out" and "Idle recognition signals - synchronized".767If at least one of the parametersdoes not conform, place the ignition key in the OFF position andrepeat the procedure. If this non conformity persists, check thatthe diagnostic cable is correctly connected and check the operationof the instrument.Place the ignition key in the OFF positionand wait for 30 seconds.Start up the engine without acting on theaccelerator pedal.Disconnect the diagnostic equipment.Test the vehicle by driving for severalkilometres then, with the engine warmed up, check that it is idlingcorrectly.
1056B82
0Removing201Refitting21 Make sure that the ignition is off (STOPposition), then disconnect the negative battery terminal (referto op. 33148615530B10battery - r+r ). 1. Release and disconnect the electrical connections (1a) and (1b)from the injection/ignition system control unit.2. Undo the nuts (2a) and remove the injection/ignition controlunit (2b).2007339
1056B82
0Removing201Refitting21 Ensure that the ignition key is in OFFposition, then disconnect the battery negative terminal ( 3314861-5530B10battery - r+r ). Proceed with the removal 3315197-7040D14engine bay rear sidecover (one) lh or rh - r r (Right side). 1. Loosen the band (1a) and disconnect the oil vapour recirculationpipe (1b) from the corrugated hose.2. Loosen the bands (2a) and remove the hose between resonator andthrottle body (2b), complete with resonator (2c).2007340
0Removing201Refitting21 Make sure that the ignition is off (STOPposition), then disconnect the negative battery terminal (referto op. 33148615530B10battery - r+r ). 1. Disconnect the electrical connection from the intake air temperaturesensor.2. Undo and remove the intake air temperature sensor.2007791
1056B62
0Removing201Refitting21 Make sure that the ignition is off (STOPposition), then disconnect the negative battery terminal (referto op. 33148615530B10battery - r+r ). Discharge the fuel pressure (see GR 10- WARNINGS).1. Disconnect the electrical connections from the injectors.2007793
0Removing201Refitting21 Make sure that the ignition is off (STOPposition), then disconnect the negative battery terminal (referto op. 33148615530B10battery - r+r ). 1. Disconnect the electrical connection from the altitude corrector. 2. Undo the attachments and remove the altitude corrector.2007796
1056B79
0Removing201Refitting211. Remove the buttons (1a) using the tool (1b) and remove the protection(1c).2. Open the two protective covers (2a) and undo the nuts (2b) underneathfixing the control unit cover.3. Undo the bolts (3a) and remove the control unit cover (3b).2007797
0Removing201Refitting21 Make sure that the ignition is off (STOPposition), then disconnect the negative battery terminal (referto op. 33148615530B10battery - r+r ). 3315196-7040D12engine front side cover (one) lh or rh - r r (rightand left). 3315198-7040D30engine bay front beam cover - r r . 1. Disconnect the electrical connections from the engine radiatorfan resistance.2. Disconnect the electrical connection from the engine coolingfan.Release the electrical wiring from thesecuring bands.3. Undo the bolts (3a) and remove the engine cooling fan (3b).2007448
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