AUTOMOTIVE ELECTRICIANS

Alfa Romeo 166 2.0 TS fino a 2/99 — GLOVE COMPARTMENT LIGHT — LUGGAGE COMPARTMENT LIGHT — SUN VISOR LIGHT — — 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-
B45Luggage compartment junction unit (CVB)-
B99Battery fuses junction unit (CBA)5530B
C10Front left earth-
C15Facia earth, driver's side-
C20Passenger side dashboard earth-
C21Passenger side dashboard earth-
C30Rear left earth-
C31Rear right earth-
D6Rear - front coupling-
D19Dashboard / battery coupling-
D20Dashboard-rear coupling-
D26Dashboard-right rear coupling-
D27Left rear-right rear coupling-
D40Boot rear connection-
D42Dashboard-courtesy lights coupling-
E50Instrument panel-
E50Instrument panel5560B
G30Glove compartment light7040G
G31Driver's sunshade light7040E
G32Passenger's sunshade light7040E
G35Ashtray light bulb7065C
G40Boot courtesy light7040G
H1Ignition switch5520A
I11Boot opening switch5580E
I15Glove compartment light7040G
J51Boot light timer-
M40A.B.I control unit5505A
Location of components

Components
Component codeNameAssembly reference
B1Junction unit5505A
B2Dashboard junction unit (CPL)-
B2Junction unit-
B2Junction unit5505A
B5MAXI FUSE box-
B45Luggage compartment junction unit (CVB)-
B99Battery fuses junction unit (CBA)5530B
C10Front left earth-
C15Facia earth, driver's side-
C20Passenger side dashboard earth-
C21Passenger side dashboard earth-
C30Rear left earth-
C31Rear right earth-
D6Rear - front coupling-
D19Dashboard / battery coupling-
D20Dashboard-rear coupling-
D26Dashboard-right rear coupling-
D27Left rear-right rear coupling-
D40Boot rear connection-
D42Dashboard-courtesy lights coupling-
E50Instrument panel-
E50Instrument panel5560B
G30Glove compartment light7040G
G31Driver's sunshade light7040E
G32Passenger's sunshade light7040E
G35Ashtray light bulb7065C
G40Boot courtesy light7040G
H1Ignition switch5520A
I11Boot opening switch5580E
I15Glove compartment light7040G
J51Boot light timer-
M40A.B.I control unit5505A
DescriptionLuggage compartment lighting is controlled by a timer.When the boot is opened, a light is turned on for a timed interval of several minutes (this function ensures that the battery does not go flat if the car is left with the boot open).Timer operation is suspended when the boot is closed.A light inside the glove compartment is turned on when the compartment is opened, and goes off when the compartment is closed.The light under the sunblind is turned on when a switch on the blind is turned on.The boot light and sunblind lights are protected by the same fuse.Numerous other interior instrument and control lights are present. These are turned on when the side lights are turned on. The lines are described and illustrated in the relevant component wiring diagrams.
Functional description The boot light G40 is controlled by the timer J51 . The time is supplied directly from the battery to pin 85 through the line of the maxifuse CENTR of B5 and the fuse F4 of the junction unit B1 . The boot open switch I11 sends an earth signal, when the boot is open, to pin 86 of J51 . The boot open signal is also sent to the instrument - pin 13 of connector B of E50 - to switch on the 'boot open' LED and car symbol, while pin 15 of connector A of E50 supplies the ignition-operated supply (INT/A) to the panel through fuse F1 of junction unit B1 . The glove compartment light G30 is supplied directly from the battery via the line of the maxifuse CENTR of B5 and fuse F4 of the junction unit B1 : it is activated by an earth signal from the glove compartment switch I15 . The two lights on the sunshades G31 and G32 are also supplied directly from the battery via the line of the maxifuse CENTR of B5 and fuse F4 of the junction unit B1 : they are operated by the switch inside the light.

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



Luggage compartment junction unit (CVB)



B45A



B45B



B45A



B45B



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



Passenger side dashboard earth



C20



C20



C20



C20



C20



C20



C20



C20



Dashboard earth on Air Bag bracket



C21



C21



C21



C21



C21



C21



C21



C21



Rear left earth



C30



C30



C30



C30



C30



C30



C30



C30



C30



C30



C30



C30



Rear right earth



C31



C31



C31



C31



C31



C31



C31



C31



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



Dashboard-rear coupling



D20A



D20A



D20A



D20A



D20B



D20B



D20C



D20C



D20A



D20A



D20A



D20A



D20B



D20B



D20C



D20C



Dashboard-right rear coupling



D26A



D26A



D26A



D26A



D26A



D26A



D26A



D26A



D26A



D26A



D26A



D26A



D26A



D26B



D26B



D26B



D26B



D26B



D26B



D26B



D26B



D26B



D26B



D26B



D26A



D26A



D26A



D26A



D26A



D26A



D26A



D26A



D26A



D26A



D26A



D26A



D26A



D26B



D26B



D26B



D26B



D26B



D26B



D26B



D26B



D26B



D26B



D26B



Left rear-right rear coupling



D27



D27



D27



D27



D27



D27



D27



D27



D27



D27



D27



D27



D27



D27



D27



D27



D27



D27



Boot rear connection



D40



D40



D40



D40



D40



D40



D40



D40



D40



D40



D40



D40



Dashboard-courtesy lights coupling



D42



D42



D42



D42



D42



D42



D42



D42



D42



D42



D42



D42



D42



D42



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

Glove compartment light



G30



G30



G30



G30



G30



G30



G30



G30



G30



G30



G30



G30



vehicle compartment lightening system



7040G20


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition keyis in tthe OFF position, then disconnect the battery negative terminal.1. Open the compartment and remove the facia glove compartment bulbholder (1a) using the tool (1b) after disconnecting the electricalconnection (1c).2010975

7040G24


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition keyis in tthe OFF position, then disconnect the battery negative terminal.3315175-7040A31flap assembly - r r . 1. Remove the glove compartment light switch (1a) from its housing,disconnect electrical connection (1b) and then remove it.2010976

7040G30


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21With the ignition key in thestop position, disconnect the battery negative terminal.1. Open the boot lid amd use tool (1a) to prise out courtesy light(1b).2. Disconnect the electrical connection.3. If necessary, remove the bulb from the retaining clip.2010977

Driver's sunshade light



G31



G31



interior courtesy light system



7040E17


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21With the ignition key in thestop position, disconnect the battery negative terminal.1. Use tool (1a) to prise out courtesy light(1b).2. Disconnect the electrical connection and remove the courtesylight.2010968

7040E22


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition keyis in tthe OFF position, then disconnect the battery negative terminal.1. Remove the under-facia courtesy light (1a) using the tool (1b).2. Disconnect the electrical connection from the under-facia courtesylight and remove it.2010969

7040E24


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21With the ignition key in thestop position, disconnect the battery negative terminal.1. Use the tool shown to take the courtesy light out of its housingon the panel.1. Disconnect electrical cable (2a) from courtesy light (2b) andremove.2010970

7040E26


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21With the ignition key in thestop position, disconnect the battery negative terminal.1. Use the tool to prise the lower courtesy light out of the panel.2. Disconnect electrical connector (2a) from courtesy light (2b)and remove.2010971

7040E28


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21With the ignition key in thestop position, disconnect the battery negative terminal.1. Use the tool to prise out the courtesy light.2. Disconnect electrical connection (2a) and remove courtesy light(2b).2010972

7040E40


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21With the ignition key in thestop position, disconnect the battery negative terminal.1. Use the tool to prise out the courtesy light.2. Disconnect electrical connection (2a) and remove courtesy light(2b).2010973

Passenger's sunshade light



G32



G32



Ashtray light bulb



G35



G35



G35



G35



G35



G35



G35



G35



accessories and decorations



7065C30


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Open the decorative fastening cover panels.2. Unscrew the grab handle retaining bolts. 3. Remove the grab handle.2011117

7065C34


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Unscrew the sun blind retaining bolt.2. Remove sun blind (2a) by releasing from retainer (2b).3. Prise up the retaining panel and raise.4. Unscrew the retaininer bolt.5. Remove the retainer.2011118

7065C38


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213315271-7050A20one-piece rear seatcushion - r r3315270-7050A19rear seat squab - r r3315218-7040H42rear pillar trim - r r3315220-7040H84parcel rack plus speaker - r r1. Unscrew both side bolts retaining the blind roller to the parcelrack.2. Unscrew retaining bolts (2a) and remove bracket (2b).3. Remove the roller from the parcel rack.2011119

7065C42


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Undo retaining clip (1a) and then remove ashtray (1b).2011120

7065C59


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Disconnect connection (1a) and raise mirror mount (1b) by liftingout of retaining block (1c) secured to the glass.2011121

7065C68


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Raise mirror mount (1a) by lifting out of retaining block (1b)secured to the glass.2011122

7065C69


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21This procedure provides instructionsfor refitting the plate. When correctly secured, the plate can nolonger be detached from the glass.769

Boot courtesy light



G40



G40



G40



G40



G40



G40



G40



G40



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

anti-theft device



5580E08


<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 ). 3314944-5580E12immobiliser device ecu - r+r following electric circuitcheck . 3315174-7040A26steering column trim - r+r . 1. Remove the aerial for the electronic key (1a) releasing it fromthe lock barrel and the retaining bands (1b).2010732

5580E12


<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 nuts (2a) and remove the electronic key anti-theft controlunit (2b) after having disconnected the electrical connections (2c)and (2d).2010733

5580E18


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213314734-5010C30central air outlet onfascia - r+r . 1. At the bench, remove the anti-theft device on warning light fromthe centre air vent in the dashboard.2010734

5580E26



5580E28



5580E30


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition keyis in stop position, then disconnect the battery negative terminal3314911-5550D16third stop light - r+r . 1. Undo the bolts fixing the anti-theft remote control receiverto the rear parcel shelf.2. Remove the anti-theft device remote control receiver (2a) afterhaving disconnected the electrical connection (2b).2010735

5580E46


<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 ). 3315190-7040B13load compartment/load platform right side trim -r r . 1. Undo the bolt (1a) and the nut (1b) fixing the anti-theft devicealarm/control unit.2. Disconnect the electrical connections (2a) and (2b), then removethe anti-theft device alarm/control unit (2c).2010736

5580E50


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Press in the direction of the arrow and lower the volumetricsensor unit (1a), releasing it from the inner retainers (1b) and(1c). 2071341

Glove compartment light



I15



I15A



I15A



I15B



I15B



I15



I15A



I15A



I15B



I15B



Boot light timer



J51



J51



J51



J51



A.B.I control unit



M40A



M40A



M40B



M40B



M40C



M40A



M40A



M40B



M40B



M40C


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