DescriptionA control system called SELESPEED supervisesand governs the operation of the manual gearbox via an electrohydraulicdevice.An electronic control unit manages a complexoperating logic which enables the gearbox to be used in both 'semi-automatic'conditions, in which the driver manages the engagement of the gearsusing the lever or the two steering wheel buttons, and automatic'CITY' mode which delegates gear change management to the electronicsystem.The electronic control unit dialogues withthe engine management control unit via two dedicated lines (CAN),and receives the rpm, engine torque and engine temperature signals.The control unit drives, by means of a complexoperating logic, an electrohydraulic unit located on the gearbox,via a specific electric pump. For greater detail, see 3232901Characteristic of working principle2127ELECTRO-HYDRAULIC SELECTION.GEARBOX EXTERNAL. CONTROLS . The system is also controlled by means oftwo relays located near the control unit.The supply lines to the control unit andthe various system components (sensors and actuators) are protectedby two specific maxifuses and other jumper fuses, located next tothe junction unit.
Functional description The SELESPEED control unit M54 monitorsand controls the entire gearbox management system. The control unit is supplied directly bythe battery, via the line of the maxifuse O/A located on the battery(connector B99 D ), at pin 27 of connector A of M54 . The supply controlled by the ignition (15/54)reaches pin 28 of connector A of M54 , via the line protectedby fuse F4 of supplementary fuse box B98 A. Pins 1 and 2 of connector A of M54 areearthed. A set of sensors and potentiometers on thegearbox informs the control unit of the engaged gear: the potentiometersare supplied from pin 73 of connector B; the gear selection potentiometer K68 returns a signal to pin 51 of connector A; the gear engagementpotentiometer K69 returns a signal to pin 39 of connector A;the hydraulic unit oil pressure sensor K96 returns a signalto pin 40 of connector A. The clutch position potentiometer K95 issupplied from pin 79 of connector B and returns a signal to pin52 of connector A. Pins 38 and 50 of connector A M54 areconnected to the car speed sensor (gearbox output) K77 . Pin 36 of connector A is connected to instrument E10 from which it receives the speedometer signal (car speed). Pin 48 of connector A is connected to instrument E15 from which it receives the engine rpm signal. The gear control unit H37 is connectedto the control unit M54 to signal the request to engage agear: these signals are sent to pins 67, 74, 68 of connector B of M54 ;and to pin 26 of connector A to signal the request for gears 1,2, 3 and D respectively. The selector H39 allows the CITYmode to be selected; it is connected to the M54 control unitat pin 77 of connector B; (the display is also lit up with the sidelights on (line coming from steering column switch unit H5 ). The steering wheel controls H38 sendsignals - via the clock spring D47 - to pin 75 of connector B of M54 . Pin 69 of connector B of M10 receivesthe signal coming from the brake lights switch I30 , withthe supply controlled by the ignition (INT) from fuse F4 ofthe additional fuse box B98 B . In accordance with the operating logic,the control unit controls the electrohydraulic unit located on thegearbox which effects the gear change: the electric pump N48 ,which keeps the oil in the hydraulic unit under pressure, is controlledfrom pin 31 of connector A. The pump N48 is controlled by a specificrelay J86 (supplied by the line of the specific maxifuseF/P located on the battery (connector B99 D ). The control unit then controls theopening of the hydraulic unit solenoids:the two gear engagement solenoids L51 and L52 arecontrolled from pins 32 and 44 of connector A of M54 ;the two gear selection solenoids L53 and L54 arecontrolled from pins 29 and 3 of connector A of M54 ;the clutch control solenoid L56 is controlled frompin 43 3 of connector A of M54 . A safety signal comes from pin 42 of connectorA of M54 for the starting enablement relay J05 whichgives starting enablement, pin 50 of the starter motor A20 ;the signal requesting starting reaches pin 76 of connector B 3234399SeeE5010STARTING AND RECHARING . The control unit M54 also managesthe door open buzzer: the driver's door open signal - catch N50 - reaches pin 78 of connector B of M54 ; the control for thebuzzer, located in instrument E15 departs from pin 80 ofconnector B. The control unit M54 has a self-testsystem, which can be used by connecting the unit to the connector R10 :this receives signals from pin 49 of connector A of M54 ;the serial line is shared with the engine control unit M10 . The same self-test also sends signals forthe 'automatic gearbox fault' warning light. located in the instrument E15 , via the same line - coming out of pin 72 of connectorB - it is used for the gear indication display on the instrument itself. Control unit M54 is connected tothe engine management control unit M10 and the ABS controlunit M50 ; this connection is via the CAN line from pins 33and 45 of connector B of M54 and is connected, via the steeringsensor K58 , to pins 12 and 29 of connector A of M10 .
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Place the car on a ramp.Undo the bolt securing the bracket on thebattery mount.Release the battery from the anchoragebracket complete with strap and remove.
5530B14
769768768
5530B18
Follow these precautions.769On batteries with an opticam hydrometer,electrolyte level and battery charge status can be monitored qualitativelyby examining the indicator colour:a light, bright colour indicates low electrolytelevel: top up with distilled water;a dark colour without a green area in thecentre indicates that the electrolyte level is correct but chargeis low: recharge the battery;a dark colour with a green area in themiddle indicates that both electrolyte level and charge status arecorrect: no action is necessary. For more details 3238420See subassembly5530 CURRENT GENERATOR . 768Proceed as follows.Check the battery voltage without loadusing the test device recommended by the Service outlets (e.g. 'MICRO360').Depending on the voltage values measured,which define the state of charge of the battery, proceed as follows: If the voltage without load is less than12.10 V, replace the battery ( 32384295530B10battery - r+r ). If the voltage without load is over 12.10V but less than 12.50 V, recharge the battery ( 32384305530B14battery - recharge ). If the voltage without load is over 12.50V, the battery is efficient.If necessary, top up the electrolyte asfollows.Carefully remove the cap strip.Top up with distilled and deionized water,taking care not to allow electrolyte to splash out.768
5530B22
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Place the car on the liftingbridge.1. Open engine compartment cap and disconnect battery negative terminal.2. Disconnect mass terminal on side member.3. Lift the car and disconnect mass terminal on gearbox.4. Lower the car again and remove battery earth lead.2018767
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negative terminal.1. Open the protective cover2. Loosen the nut and disconnect the ABS supply lead3. Loosen the nut and disconnect the starter motor supply lead4. Undo the clip and undo the box retaining bolts.5. Loosen the battery positive terminal nut.2018769
5530B52
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238429-5530B10battery - r+rRelease the air duct hose from the mountingbracket on the drip tray. Remove the relay shield.1. Release the relays from the battery drip tray and remove them.2. Undo the nut fixing the air filter mounting bracket to the batterydrip tray.3. Undo the two fixing nuts (3a) and move the connections/electricalwiring mounting bracket (3b) aside.4. Release the accelerator cable from the fastening on the bracket.2018771
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Unscrew the screw.2. Remove the frame (2a) and take it off the check clamps (2b).3. Unscrew the screws.4. Remove the speedometer/odometer (4a) from from support and moveit.5. Disconnect the electric connections (5a, 5b).2018847
5560B03
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Unscrew the screw.2. Remove the frame (2a) and take it off the check clamps (2b).3. Unscrew the screws.4. Extract the speedometer (4a) from the support (4b) e move it.5. Disconnect the electric connections (5a, 5b).2018848
5560B06
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21For the replacement of lampsof the speedometer/odometer proceed as follows.3238496-5560B02kilometre/mileometer - r r1. Turn and remove the lamp holder of the instrument lamp (1a) orthe lamp holder of the display lamp (1b).2. Remove the lamp from lamp holder. Pressure joint.2018849
<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.3237940-2127A20cover of control lever/handle for manual gearboxwith hydraulic selection - r r1. Remove the trim.2. Disconnect the electrical connection from the electro-hydraulicselection manual gear lever trim.3. Undo the bolts (3a) and remove the electro-hydraulic selectionmanual gear lever trim.2017111
2127A20
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Release the springs for the trim positioned as illustrated inthe diagram and lift the actual trim as much as necessary.2. Loosen the band (2a) and remove the electro-hydraulic selectionmanual gear lever/grip trim (2b).2017112
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21 Proceed with removal 3238527-5580C18air bag module - r+r . 769PROCEED AS FOLLOWS FOR THE RIGHT LEVER.1. Disconnect the electrical connection for the horn, then pushthe connector on the steering wheel as far as necessary to accessthe electrical wiring for the gear selector control lever. 2. Disconnect the electrical connection for the gear selector controllever.3. Undo the bolt (3a) and remove the gear selector control lever(3b) releasing the electrical wiring.2069760
Connect the Examiner diagnostic equipment.Keep the brake pedal depressed.Select 'Alf 156 Selespeed' on the Examiner.Select 'Control Unit Test' on the Examinerand select the 'Marelli Selespeed Automatic Transmission'.Press 'Active Diagnosis' on the Examinerand select 'Service/end of line self-calibration'.Continue with the procedure on the Examiner.
2127E10
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in OFFposition, then disconnect the negative battery terminal.1. Undo the nuts (1a) and remove the cover under the dashboard onthe passenger side (1b).2017208
2127E30
<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 (-).3237940-2127A20cover of control lever/handle for manual gearboxwith hydraulic selection - r r . 1. Remove the trim.2. Disconnect the electrical connection for the electro-hydraulicgear selection city function selection switch.3. Disconnect the electrical connection from the electro-hydraulicselection manual gear lever trim.4. Undo the bolts (4a) and remove the electro-hydraulic gear selectioncity function selection switch (4b).2017216
2127E40
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238429-5530B10battery - r+r3238435-5530B52Battery DRIP TRAY/SUPPORT - R.R.1. Disconnect the front battery electrical connection.2. Disconnect the ABS electrical connection.3. Disconnect the electrical connection from the gear engagementsolenoid valve.4. Disconnect the electrical connection from the electro-hydraulicgear selection position sensor.2017219
2127E42
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21 Proceed with the removal 3238429-5530B10battery - r+r Proceed with the removal 3238435-5530B52Battery DRIP TRAY/SUPPORT- R.R.1. Release the electrical wiring from the mounting bracket.2. Disconnect the electrical connection from the gear engagementsolenoid valve 1.3. Disconnect the electrical connection from the gear engagementsolenoid valve 2.4. Disconnect the electrical connection from the electro-hydraulicgear selection position sensor.5. Disconnect the electrical connection from the electro-hydraulicgear selection position sensor.2017223
2127E44
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21 Proceed with the removal 3238429-5530B10battery - r+r Proceed with the removal 3238435-5530B52Battery DRIP TRAY/SUPPORT- R.R.1. Release the electrical wiring from the mounting bracket.2. Disconnect the electrical connection from the gear engagementsolenoid valve 1.3. Disconnect the electrical connection from the gear engagementsolenoid valve 2.4. Disconnect the electrical connection from the electro-hydraulicgear selection position sensor.2017227
2127E50
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Connect the Examiner diagnostic equipment.Keep the brake pedal depressed.Select 'Alf 156 Selespeed' on the Examiner.Select 'Control Unit Test' on the Examinerand select the 'Marelli Selespeed Automatic Transmission'.Press 'Active Diagnosis' on the Examinerand select 'Accumulator depressurizing'.Continue with the procedure on the Examiner.3238429-5530B10battery - r+r . 3238435-5530B52Battery DRIP TRAY/SUPPORT - R.R. . 1. Disconnect the electrical connection from the electro-hydraulicgear selection hydraulic circuit pressure sensor.2. Undo and remove the electro-hydrauilc gear selection hydrauliccircuit pressure sensor.2017231
2127E52
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Position the vehicle on the ramp.Ensure that the ignition key is in OFFposition, then disconnect the negative battery terminal.3238966-7055B54under-engine guard - r r . 1. Disconnect the electrical connection from the electro-hydraulicgear selection input shaft speed sensor.2. Undo and remove the electro-hydraulic gear selection input shaftspeed sensor.2017233
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Disconnect the electrical connection.2. Turn IU+2019 switch (2a) anticlockwisely of about 60° and extractit.To make the opening easier operate by a wrench on the exagonalsection (2b) of the IU+2019 switch. 2018839
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Open the boot lid, turn and undo the lower studs securing theupper trim.2. Lower upper trim (2a) and unscrew knob (2b) securing the thirdbrake light.3. Prise out the brake light and remove.4. Prise electrical connection (4a) out of support (4b) and disconnect.Recover the light cluster.2018841
5550D17
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238489-5550D16third stop light - r+r1. Unscrew the bolts and remove the mount from the light.2. Undo the bolts.3. Remove the bulb holder.4. Remove the bulbs (press-fit type)2018843
5550D18
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238117-3380A44handbrake/linkage protection- r+r1. Unscrew the screw.2. Move IU+2019switch.3. Disconnect the electrical connection and recover IU+2019switch.2018844
5550D22
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Place the car on an auto lift.1. Lift the car and disconnect the electrical connection of thereserving light switch.2. Unscrew and take the reserve light switch off.2018845
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF postition, then disconnect the battery negative terminal.1. Release the buttons (1a) and remove the right console closingdevice (1b).2017928
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negative (-) terminal.1. Disconnect the electrical connection from the hot-film air flowmeter. Move the relays fastened to the batterycradle to one side.2. Disconnect the pipe carrying air to the throttle body from theflow meter.3. Undo bolts (3a), remove half-rings (3b) and air flow meter (3c).2013556
1056B10
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in thestop position, then disconnect the battery negative terminal.1. Disconnect the electrical connection from the air flow meter.Move the relays fastened to the batterycradle to one side.2. Disconnect the pipe carrying air to the throttle body from theflow meter.3. Undo bolts (3a), remove half-rings (3b) and air flow meter (3c).2013557
1056B17
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in stopposition, then disconnect the battery negative terminal.1. Disconnect the oil vapour recirculation pipe from the right cylinderhead.2. Disconnect the corrugated hose from the throttle body and moveaside.2013558
1056B50
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in stopposition, then disconnect the battery negative terminal.3237529-1048A34sleeve(s) from flow meter to air supply capacitycase - r + r . 3238429-5530B10battery - r+r . 1. Disconnect the electrical connection from the engine coolanttemperature sensor.2. Undo and remove the engine coolant temperature sensor.2013560
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21- 1072B42 left hand or right hand inlet manifold (one) - r+r 767Before any interventions on componentsof the fuel system, discharge the pressure in the system using toolN. 1.870.684.000 connected to the specific valve located on thefuel distribution manifold.1. Disconnect the fuel inlet hose, then plug to prevent fuel escaping.2. Disconnect the electrical connections from the injectors.3. Undo the bolts (3a) and remove the complete fuel pipe (3b) completewith fuel injectors (3c).2013562
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Remove the retainers (1a) and remove the fuel injectors (1b)from the fuel manifold pipe.2. Remove the O-rings from the fuel injectors.2013564
<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. Working from the passenger compartment, undo bolts (1a) and removeinjection/ignition control unit guard (1b).2. Disconnect the electrical connections from the fuel injection/ignitioncontrol unit.767Follow the disconnection order:D - E - F - C - B - A.3. Undo nuts (3a) and remove injection/ignition control unit (3b).2013565
1056B90
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negative (-) terminal.Raise the car.1. Disconnect the electrical connection for the air conditionercompressor electromagnet.2013568
1056B14
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213237529-1048A34sleeve(s) from flow meter to air supply capacitycase - r + r1. Disconnect the constant idle actuator electrical connection.2. Disconnect both coolant inlet and outlet pipes (2a-2b) from thethrottle body.3. Disconnect the throttle position switch (potentiometer) electricalconnection.4. Disconnect the accelerator cable.Release the pipes from the fasteners onthe bracket under the throttle body.5. Undo the four bolts (5a) and remove throttle body (5b) with itsgasket.2014090
1056B15
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in stopposition, then disconnect the battery negative terminal.3237652-1016A40ignition coil cover on cylinder head- r+r3237529-1048A34sleeve(s) from flow meter to air supply capacitycase - r + rDisconnect the electrical connection fromthe throttle body integral with the M.D.S.1. Disconnect electrical connections (1a) and (1b) from the injection/ignitioncontrol unit and earth lead (1c) from the throttle body integralwith the M.D.S.2. Disconnect the accelerator cable from the throttle body integralwith the M.D.S.3. Disconnect the injection/ignition wiring from the mounting bracket.4. Undo bolts (4a) and remove the throttle body integral with theM.D.S. (4b) complete with the injection/ignition control unit (4c).2014091
1056B19
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the battery negative terminal.3237544-1056B82injection/ignition system e.c.u. (one) - r + r . 1. Disconnect the earth lead from the injection control unit support.2. Disconnect the oil vapour recovery pipe from the corrugated hose.3. Loosen the bands and remove the second section of the corrugatedhose after having released it from the bracket.4. Disconnect the electrical connection (4a) from the butterflycasing integrated with D.V.L. and release the wiring from the band(4b).2014095
1056B40
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negative terminal.1. Disconnect the electrical connection from the intake air temperaturesensor.2. Loosen collar (2a), withdraw air sleeve (2b) from the throttlebody and move to one side.3. Unscrew both power steering fluid reservoir bolts and move toone side.2014098
1056B43
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negative terminal.1. Disconnect the constant idle actuator electrical connection.2. Unscrew both retaining bolts and remove the throttle body actuator.Recover the seal.2014100
1056B46
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negative terminal.1. Disconnect the electrical connection from the intake air temperaturesensor.2. Withdraw and remove the intake air temperature sensor from theair sleeve.2014101
1056B48
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negative terminal.
1056B60
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the battery negative (-) terminal.
1056B87
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in thestop OFF, then disconnect the battery negative terminal.1. Disconnect electrical connections (1a) and (1b) from the injection-ignitioncontrol unit.2. Release the electrical wiring from the fastening on the ignition/injectionsystem control unit mount.2014110
1056B89
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the battery negative terminal.3237544-1056B82injection/ignition system e.c.u. (one) - r + r . 1. Disconnect the earth lead from the injection control unit support.2. Disconnect the oil vapour recovery pipe from the corrugated hose.3. Loosen the bands and remove the second section of the corrugatedhose after having released it from the bracket.4. Disconnect the electrical connection (4a) from the butterflycasing integrated with D.V.L. and release the wiring from the band(4b).2014117
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