AUTOMOTIVE ELECTRICIANS

Alfa Romeo 166 3.2 V6 fino a 2/99 — INSTRUMENT LIGHTING — — WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION — WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION

Wiring diagram

Components
Component codeNameAssembly reference
B1Junction unit5505A
B2Dashboard junction unit (CPL)-
B2Junction unit-
B2Junction unit5505A
B5MAXI FUSE box-
B99Battery fuses junction unit (CBA)5530B
C10Front left earth-
C15Facia earth, driver's side-
C21Passenger side dashboard earth-
D1Front-dashboard coupling-
D6Rear - front coupling-
D6Rear-engine compartment coupling5560C
D19Dashboard / battery coupling-
D90ICS-dashboard coupling-
E50Instrument panel-
E50Instrument panel5560B
E60ICS display5580M
H1Ignition switch5520A
H6Exterior lights control5540A
H11Instrument lights adjustment control5560B
H35Switches assembly on central console7040L
H37CAE gear control unit2135A
H80Climate control system controls5040D
H80Climate control system controls5580M
M45Electronic Check device5560C
Location of components

Components
Component codeNameAssembly reference
B1Junction unit5505A
B2Dashboard junction unit (CPL)-
B2Junction unit-
B2Junction unit5505A
B5MAXI FUSE box-
B99Battery fuses junction unit (CBA)5530B
C10Front left earth-
C15Facia earth, driver's side-
C21Passenger side dashboard earth-
D1Front-dashboard coupling-
D6Rear - front coupling-
D6Rear-engine compartment coupling5560C
D19Dashboard / battery coupling-
D90ICS-dashboard coupling-
E50Instrument panel-
E50Instrument panel5560B
E60ICS display5580M
H1Ignition switch5520A
H6Exterior lights control5540A
H11Instrument lights adjustment control5560B
H35Switches assembly on central console7040L
H37CAE gear control unit2135A
H80Climate control system controls5040D
H80Climate control system controls5580M
M45Electronic Check device5560C
DescriptionThe control panel, climate control panel and ICS are lit when the key is turned to MAR.Light intensity is controlled by a wheel located near the exterior lighting switch.On the sport version with white dials, these are not illuminated when the ignition is switched on, only when the side lights are switched on.The lighting circuit for all instruments and controls is protected by a specific fuse, located in the junction unit.
Functional description The instrument panel E50 , the climate control panel H80 , the ICS display E60 and the switch unit H35 are lit up when the ignition is switched ON. Light intensity is controlled by a wheel located near the exterior lighting switch. The lighting circuit for all instruments and controls is protected by fuse F5 , located in junction unit B1 .

Junction unit



B1A



B1A



B1A



B1A



B1A



B1A



B1A



B1A



B1A



B1A



B1A



B1B



B1B



B1B



B1B



B1B



B1B



B1B



B1B



B1B



B1C



B1C



B1C



B1C



B1C



B1C



B1C



B1C



B1C



B1C



B1C



B1D



B1D



B1D



B1G



B1E



B1E



B1E



B1E



B1E



B1E



B1E



B1E



B1F



B1F



B1F



B1F



B1F



B1F



B1F



B1F



B1F



B1F



B1F



B1H



B1H



B1H



B1H



B1H



B1I



B1I



B1I



B1I



B1I



B1I



B1I



B1I



B1I



B1I



B1I



B1X



B1A



B1A



B1A



B1A



B1A



B1A



B1A



B1A



B1A



B1A



B1A



B1B



B1B



B1B



B1B



B1B



B1B



B1B



B1B



B1B



B1C



B1C



B1C



B1C



B1C



B1C



B1C



B1C



B1C



B1C



B1C



B1D



B1D



B1D



B1G



B1E



B1E



B1E



B1E



B1E



B1E



B1E



B1E



B1F



B1F



B1F



B1F



B1F



B1F



B1F



B1F



B1F



B1F



B1F



B1H



B1H



B1H



B1H



B1H



B1I



B1I



B1I



B1I



B1I



B1I



B1I



B1I



B1I



B1I



B1I



B1X



multi-function components



5505A10


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213314824-5505A18multi-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

5505A13


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21 Make sure that the ignitionis off (STOP position), then disconnect the negative battery terminal(refer to op. 33148615530B10battery - r+r ). 3315196-7040D12engine front side cover (one) lh or rh - r r (left). 3315197-7040D14engine bay rear side cover (one) lh or rh - r r (left).

5505A18


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21 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


<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) for theadditional junction unit.2071293

Dashboard junction unit (CPL)



B2



B2A



B2B



B2C



B2E



B2F



B2G



B2G



B2H



B2I



B2I



B2I



B2I



B2I



B2I



B2



B2A



B2B



B2C



B2E



B2F



B2G



B2G



B2H



B2I



B2I



B2I



B2I



B2I



B2I



MAXI FUSE box



B5A



B5C



B5D



B5D



B5A



B5C



B5D



B5D



Battery fuses junction unit (CBA)



B99A



B99C



B99D



B99E



B99G



B99A



B99C



B99D



B99E



B99G



battery and leads



5530B10


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213314864-5530B54battery 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


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213314864-5530B54battery cover - r+r1. Press and release the retainers (1a), then remove the cover (1b)for the supply box on the battery. 2071303

5530B52


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213314864-5530B54battery cover - r+r . 3314861-5530B10battery - r+r . 1. Remove the battery fluid collection reservoir.2010648

5530B54


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Working in the luggage compartment, undo the knob for the batterycover.2. Remove the battery cover.2010650

Front left earth



C10A



C10A



C10A



C10A



C10A



C10A



C10A



C10A



C10A



C10B



C10A



C10A



C10A



C10A



C10A



C10A



C10A



C10A



C10A



C10B



Dashboard earth on Air Bag bracket



C21



C21



C21



C21



C21



C21



C21



C21



Dashboard-i.e coupling.



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1B



D1B



D1B



D1B



D1B



D1B



D1B



D1B



D1B



D1C



D1C



D1C



D1C



D1C



D1C



D1C



D1C



D1C



D1C



D1C



D1C



D1C



D1C



D1D



D1D



D1D



D1D



D1D



D1D



D1D



D1D



D1D



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1A



D1B



D1B



D1B



D1B



D1B



D1B



D1B



D1B



D1B



D1C



D1C



D1C



D1C



D1C



D1C



D1C



D1C



D1C



D1C



D1C



D1C



D1C



D1C



D1D



D1D



D1D



D1D



D1D



D1D



D1D



D1D



D1D



Rear - front coupling



D6C



D6C



D6C



D6C



D6



D6



D6



D6



D6



D6



D6



D6



D6



D6



D6



D6



D6



D6



D6



D6



D6B



D6B



D6C



D6C



D6C



D6C



D6



D6



D6



D6



D6



D6



D6



D6



D6



D6



D6



D6



D6



D6



D6



D6



D6B



D6B



Dashboard / battery coupling



D19



D19



D19



D19



ICS-dashboard coupling



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



D90



Instrument panel



E50A



E50A



E50A



E50A



E50A



E50A



E50A



E50A



E50A



E50A



E50A



E50A



E50B



E50B



E50B



E50B



E50B



E50B



E50C



E50C



E50C



E50C



E50C



E50C



E50C



E50C



E50C



E50C



E50D



E50D



E50A



E50A



E50A



E50A



E50A



E50A



E50A



E50A



E50A



E50A



E50A



E50A



E50B



E50B



E50B



E50B



E50B



E50B



E50C



E50C



E50C



E50C



E50C



E50C



E50C



E50C



E50C



E50C



E50D



E50D



analogue control panel



5560B06


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213314917-5560B11analogue control panel- r+r or replace . 1. At the bench, remove the bulbs from the panel using suitablepliers.2010702

5560B11


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21 Make sure that the ignitionis off (STOP position), then disconnect the negative battery terminal(refer to op. 33148615530B10battery - r+r ). Lower the steering wheel and move it back.1. Undo the bolts (1a) and remove the upper half casing for thesteering column (1b).2010703

5560B12


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21 Make sure that the ignitionis off (STOP position), then disconnect the negative battery terminal(refer to op. 33148615530B10battery - r+r ). Open the fuse carrier compartment flap.1. Using the tool (1a) and pushing the fuse carrier compartment,remove the surround (1b) complete with switches.2. Disconnect the elelectrical connections (2a), (2b) and (2c) andremove the surround complete with switches.2010706

ICS display



E60A



E60A



E60A



E60A



E60A



E60A



E60A



E60B



E60B



E60B



E60B



E60B



E60B



E60A



E60A



E60A



E60A



E60A



E60A



E60A



E60B



E60B



E60B



E60B



E60B



E60B



om-board navigator



5580M32


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213314953-5580M50mount for on-board navigatorcomponent in boot - r r . 1. At the bench, unto the screws (1a) and remove the CD player/changer(1b).2010737

5580M50


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Undo the wing bolts and removethe boot left side trim. Make sure that the ignition is off (STOPposition), then disconnect the negative battery terminal (referto op. 33148615530B10battery - r+r ). Disconnect the electrical connections forthe loudspeakers' amplifier.1. Undo the nuts and move aside the on-board navigator componentsmounting as far as necessary.Disconnect the electrical connection fromthe navigation system CD player/changer.Disconnect the electrical connections ofthe audio CD player/changer.2. Remove the complete on-board navigator components mounting.2010738

5580M70


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21 Make sure that the ignitionis off (STOP position), then disconnect the negative battery terminal(refer to op. 33148615530B10battery - r+r ). 3314968-7005A20Front side DOOR - R.R. . 3315319-7065C34l/h or r/h sun blind (one) - r+r . 3315205-7040E40modular front courtesy light - r r . 3315204-7040E28courtesy light on sun blind - r r . 3315214-7040H32sliding roof switch door panel - r r . 3315318-7065C30interior l/h or r/h grab handle (one) - r+r . 3315216-7040H36central trim lower element - r r . 3315217-7040H38central pillar upper element - r r . 3315215-7040H34central pillar trim - r r . 3315200-7040E17lh or rh rear courtesy light - r r . 3315323-7065C68rear view mirror - r+r . 3315322-7065C59interior rear view mirror with automatic antiglaredevice - r r . 3315211-7040H10roof panel lining - r r . 3315271-7050A20one-piece rear seat cushion - r r . 3315270-7050A19rear seat squab - r r . - 7050A42 rear squab catch device (one) - r+r (left). 1. Disconnect the connections of the on-board navigator aerial cables.2010739

Ignition switch



H1A



H1A



H1A



H1A



H1A



H1A



H1B



H1B



H1B



H1A



H1A



H1A



H1A



H1A



H1A



H1B



H1B



H1B



ignition switch



5520A12


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21 Make sure that the ignitionis off (STOP position), then disconnect the negative battery terminal(refer to op. 33148615530B10battery - r+r ). 3314931-5580C18air bag module - r+r . 7693315174-7040A26steering column trim - r+r . 3314624-4110A11steering wheel - r+r for replacement or check forversions with air bag . 3314902-5550A12complete stalk unit - r+r for versions with air bag . 1. Release the aerial for the electronic key from the ignition switch.2. Release the electrical wiring from the fixing band and disconnectthe electrical connection for the ignition switch.2010621

5520A14


768

lighting



5540A22


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition keyis in stop position, then disconnect the battery negative terminal1. Undo the bolt (1b) and open the fuse access cover (1b).2. Remove the complete exterior light switch (2a) from its housingusing the tool (2b).767Exert pressure inside the exteriorlights switch to facilitate its removal.3. Disconnect the electrical connections (3a), (3b) and (3c) andremove the exterior lights switch (3d).2010651

5540A56


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21 Make sure that the ignitionis off (STOP position), then disconnect the negative battery terminal(refer to op. 33148615530B10battery - r+r ). 1. Undo the knob (1b) and open the protective cover (1a).2010652

5540A58



5540A68


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21 Make sure that the ignitionis off (STOP position), then disconnect the negative battery terminal(refer to op. 33148615530B10battery - r+r ). 1. Undo the fixing knob (1b) and open the access cover (1a) .2. Disconnect the electrical connection from the inner rear lightcluster.3. Undo the nuts (3a) and remove the inner rear light cluster (3b).2010654

5540A74


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21 Make sure that the ignitionis off (STOP position), then disconnect the negative battery terminal(refer to op. 33148615530B10battery - r+r ). 1. Open the access cover after having undone the fixing knob.2. Release the retaining tabs (2a) and extract the bulb holder (2b)from its housing.3. Replace the rear fog lamps bulb (3a) or the reversing lightsbulb (3b) or the side lights bulb (3c).2010655

5540A80


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21 Make sure that the ignitionis off (STOP position), then disconnect the negative battery terminal(refer to op. 33148615530B10battery - r+r ). 1. Undo the knob (1b) and open the protective cover (1a).2010656

5540A94


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21 Make sure that the ignitionis off (STOP position), then disconnect the negative battery terminal(refer to op. 33148615530B10battery - r+r ). 1. Using the tool (1a), remove the complete number plate light (1b).2. Disconnect the electrical connection and remove the number platelight.2010658

Instrument lights adjustment control



H11



H11



H11



H11



H11



H11



H11



H11



H11



H11



H11



H11



Switches assembly on central console



H35



H35



H35



H35



H35



H35



H35



H35



cabin floor covering



7040L10



7040L20


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21With the ignition key in the stop position,disconnect the battery negative terminal.1. Release the gear lever boot from its seat on the console.2. Undo the handbrake lever boot stud from its seat on the consoleand release from the lever.3. Unscrew the console retaining bolts. 4. Disconnect the cigar lighter and ashtray light electrical connection.5. Remove the trim by withdrawing from the handbrake lever.2010988

7040L40


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Unscrew the retaining bolt in the upper corner of the sill plate.2. Use tool (2a) to prise sill plate (2b) up from the underlyingretainers.2010989

7040L44


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213315271-7050A20one-piece rear seatcushion - r r3315216-7040H36central trim lower element - r r1. Use tool (1a) to prise open studs (1b) securing the sill plate.2. Remove the sill plate by undoing the underlying clips.2010990

7040L50


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Unscrew bolts (1a) retaining the driver's side footrest and remove.2010991

automatic transmission manual controls



2135A10


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21 Make sure that the ignition is in the OFFposition, then disconnect the negative battery terminal (refer toop. 33148615530B10battery - r+r ). 3315223-7040L20tunnel trim - r r . 3315184-7040A65passenger compartment box lock , one , r r . Move the automatic transmission manualcontrol lever to the P position.1. Undo the attachments and remove the facia mounting bracket, passengerside.2009591

2135A12


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213315223-7040L20tunnel trim - r r3315184-7040A65passenger compartment box lock , one , r rMove the automatic transmission manualcontrol leverl to the P position.1. Undo the attachments and remove the facia mounting bracket, passengerside.2009594

Climate control system controls



H80



H80



H80



H80



H80



H80



H80



H80



air conditioner controls



5040D52


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21 Make sure that the ignitionis off (STOP position), then disconnect the negative battery terminal(refer to op. 33148615530B10battery - r+r ). 3314810-5050B34windscreen wiper arm/s complete with blade - r+r . 3315282-7055A18Windscreen base TRIM - R.R. . 1. Disconnect the electrical connection for the intake/recirculationair flap actuator.2. Undo the bolts (2a) and loosen the bolt (2b) for the recirculation/intakeair flap actuator using the tools (2c) and (2d).3. Disconnect the linkage (3a), rotate the recirculation/intakeair flap actuator (3b), completely undo the remaining bolt and removeit.2010575

5040D70


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213314729-5010B52ducts (one), lh or rh,on air distribution unit for air duct beneath facia r r with faciaremoved . 1. Disconnect the electrical connection for the distribution airflap actuator.2. Undo the fixing bolts and move the distribution air flap actuatoraside.3. Undo the bolts (3a) and remove the actuator mounting bracket(3b).4. Release the wiring and remove the distribution air flap actuator.2010576

5040D76



5040D77


768

Electronic Check device



M45A



M45A



M45A



M45A



M45B



M45B



M45B



M45B



M45C



M45C



M45C



M45C



M45C



M45C



M45C



M45D



M45D



M45D



M45D



M45D



M45D



M45D



M45E



M45E



M45E



M45E



M45A



M45A



M45A



M45A



M45B



M45B



M45B



M45B



M45C



M45C



M45C



M45C



M45C



M45C



M45C



M45D



M45D



M45D



M45D



M45D



M45D



M45D



M45E



M45E



M45E



M45E


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