AUTOMOTIVE ELECTRICIANS PORTAL - FZCO

Alfa Romeo 156 2.4 JTD 20v da 04/98 a 02/99 — GLOVE COMPARTMENT LIGHT — LUGGAGE COMPARTMENT LIGHT — SUN VISOR LIGHT — — Sedan — WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION — WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION

Alfa Romeo 156 2.4 JTD 20v  da 04/98 a 02/99 — GLOVE COMPARTMENT LIGHT — LUGGAGE COMPARTMENT LIGHT — SUN VISOR LIGHT —  — Sedan — WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION — WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION
Wiring diagram

Components
Component codeNameAssembly reference
B1Junction unit5505A
B5MAXI FUSE box-1-
B5MAXI FUSE-1 box-
B5MAXIFUSE box-1-
B10Fuse controlled by ignition (INT/A)-
B10Key-dependent supply fuse (INT/A)-
B98Supplementary fuse box5505A
B99Maxifuse box on battery-
B99Maxifuse box on battery5530B
C20Passenger side dashboard earth5505A
C30Left rear earth5505A
C31Rear right earth5505A
D20/Rear dashboard coupling-
D20Dashboard/rear connection-
D40Boot / rear coupling-
D40Rear / boot connection-
D87Left tailgate / rear coupling-
D87Left tailgate rear coupling/-
G30Glove compartment light7040G
G31Driver's sun blind light7040E
G31Driver's sunshade light7040E
G32Passenger sun blind light7040E
G40Boot courtesy light7040G
G40Boot courtesy light7040G
G41Tailgate courtesy light7040G
H1Ignition switch5520A
I11Boot opening switch5580E
I11Boot opening switch7015B
I15Compartment switch7040G
M40Integrated services control unit5505A
P20Car radio5570T
Location of components

Components
Component codeNameAssembly reference
B1Junction unit5505A
B5MAXI FUSE box-1-
B5MAXI FUSE-1 box-
B5MAXIFUSE box-1-
B10Fuse controlled by ignition (INT/A)-
B10Key-dependent supply fuse (INT/A)-
B98Supplementary fuse box5505A
B99Maxifuse box on battery-
B99Maxifuse box on battery5530B
C20Passenger side dashboard earth5505A
C30Left rear earth5505A
C31Rear right earth5505A
D20/Rear dashboard coupling-
D20Dashboard/rear connection-
D40Boot / rear coupling-
D40Rear / boot connection-
D87Left tailgate / rear coupling-
D87Left tailgate rear coupling/-
G30Glove compartment light7040G
G31Driver's sun blind light7040E
G31Driver's sunshade light7040E
G32Passenger sun blind light7040E
G40Boot courtesy light7040G
G40Boot courtesy light7040G
G41Tailgate courtesy light7040G
H1Ignition switch5520A
I11Boot opening switch5580E
I11Boot opening switch7015B
I15Compartment switch7040G
M40Integrated services control unit5505A
P20Car radio5570T
DescriptionThe lighting of the luggage compartment is timed according toa logic managed by the integrated services control unit, on theright hand side, under the dashboard:When the boot is opened, a light is turnedon for a timed interval of 20 minutes (this function ensures thatthe battery does not go flat if the car is left with the boot open).Timer operation is suspended when the bootis closed.A light inside the glove compartment isturned on - only with the ignition turned to MAR - when the compartmentis opened, and goes off when the compartment is closed.A light under the sunblind is turned on- only with the ignition turned to MAR- when a switch on the blindis turned on.The circuit for the boot light and the sunvisor light is protected by the same fuse as the courtesy lights,two fuses also protect the direct and ignition-controlled supplylines for the integrated services control unit.The circuit for the glove compartment lightis protected by the fuse for the supplies controlled by the ignition,at the side of the junction unit.Numerous other interior instrument and control lights are present. These are turned on when the side lights areturned on. The lines are described and illustrated in the relevantcomponent wiring diagrams.
Functional description The boot opening switch I11 sends an earth signal, withthe boot open, to integrated services control unit M40. (pin14 of connector C) and simultaneously to boot light G40 . The supply for the control unit M40 iscontrolled by the ignition (INT) by the line for fuse F1 ofthe junction unit B1 (pin 7 of connector B) and directlyfrom the battery. (maxifuse J/B2 of B5 ) up to 2/99or of B99 from 2/99.) through fuse F8 of junction unit B1 (pin8 of connector B). When the signal that the boot is open arrives,the control unit M40 sends the timed supply signal, frompin 2 of connector C, which operates the boot light G40 . The supply for the glove compartment light G30 iscontrolled by the ignition (INT/A) by the line for fuse B10 upto 2/99 or fuse F6 of the additional fuse box B98B from2/99, and is activated by an earth signal from the glove compartmentswitch I15 . The supply for the sun visor light G32 iscontrolled by the ignition (INT) by the line for fuse F1 ofthe junction unit B1 and is activated by the switch insidethe actual light.

Junction unit



B1A



B1A



B1B



B1B



B1B



B1C



B1C



B1C



B1C



B1C



B1C



B1C



B1C



B1C



B1C



B1C



B1D



B1D



B1D



B1D



B1D



B1D



B1D



B1D



B1D



B1D



B1D



B1D



B1D



B1D



B1D



B1E



B1E



B1E



B1F



B1F



B1G



B1G



B1G



B1G



B1H



B1H



B1I



B1I



B1I



B1I



B1I



B1I



B1I



B1J



B1J



B1J



B1J



B1J



multi-function components



5505A10


769

5505A16


769

5505A18


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238830-7040G24switch for facia compartmentlight - r+r3238829-7040G20facia compartment light bulb holder - r+r3238795-7040A31flap assembly - r r1. Undo the bolts.2. Move the integrated service control unit slightly.3. Disconnect the electrical connections (3a, 3b, 3c).2018617

5505A30


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Remove components obstractingaccess to earth carrier node.1. Unscrew screw.2. Disjoin earth carrier node.2018618

5505A38



MAXI FUSE box-1



B5A



B5B



B5B



B5B



B5B



Fuse controlled by ignition (INT/A)



B10



Supplementary fuse box



B98A



B98A



B98A



B98A



B98A



B98A



B98A



B98A



B98A



B98A



B98A



B98A



B98A



B98A



B98A



B98A



B98A



B98A



B98A



B98A



B98A



B98A



B98B



B98B



B98B



B98B



B98B



B98C



B98C



B98C



Maxifuse box on battery



B99A



B99A



B99A



B99A



B99B



B99B



B99B



B99B



B99B



B99B



B99C



B99C



B99C



B99C



B99C



B99C



B99C



B99C



B99D



B99D



B99D



B99D



B99D



B99D



B99D



battery and leads



5530B10


<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

5030B26



5030B40


<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

Passenger side dashboard earth



C20A



C20A



C20B



C20B



C20B



C20B



Left rear earth



C30



C30



C30



C30



Rear right earth



C31



C31



C31



C31



C31



C31



C31



Boot / rear coupling



D40



D40



D40



Left tailgate / rear coupling



D87



D87



D87



Glove compartment light



G30



G30



G30



vehicle compartment lightening system



7040G20


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Open the glove compartment and remove the bulb holder usingthe special tool.2. Disconnect the electrical connection.2019279

7040G24


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238801-7040A45facia rh side cover- r r1. Disconnect the electrical connection.2. Remove the switch from the housing.2019281

7040G30


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Open the boot compartment cover and remove the overhead light.2. Disconnect the electrical connection.3. If necessary, pull out the bulb from the rod springs.2019282

7040G36


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Open the tailgate.1. Remove the courtesey light using the appropriate tool.767Work on the side shown in thediagram.2. Disconnect the electrical connections.2019283

7040G40


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Open the tailgate.1. Remove the courtesey light using the appropriate tool.767Work on the side shown in thediagram.2. Disconnect the electrical connections.3. If necessary, remove the bulb from the retaining clip.2019285

Driver's sun blind light



G31



G31



interior courtesy light system



7040E16


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Remove the courtesy light (1a).767Use a screwdriver via the slot(1b).2. Disconnect the electrical connections.3. If necessary, remove the bulb from the retaining clip.2019272

7040E17


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Remove the overhead light with the proper tool. Work with thetool from the side shown in the figure.2. Disconnect the electrical connection.2019273

7040E20


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Remove the courtesey light using the appropriate tool.2. Disconnect the electrical connection.2019275

7040E40


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Remove the overhead light, with the proper tool. Work with thetool from the side shown in the figure.2. Disconnect the electrical connection.2019277

Passenger sun blind light



G32



G32



G32



Boot courtesy light



G40



G40



G40



G40



G40



Tailgate courtesy light



G41



Ignition switch



H1A



H1A



H1A



H1A



H1A



H1A



H1A



H1A



H1A



H1A



H1A



H1A



H1A



H1A



H1A



H1A



H1A



H1A



H1A



H1A



H1B



H1B



H1B



H1B



H1B



H1B



ignition switch



5520A12


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238121-4110A11steering wheel - r+rfor replacement or check for versions with air bag3238793-7040A26steering column trim - r+r3238476-5550A12complete stalk unit - r+r for versions with air bag1. Disconnect electric connection from ignition switch.2. Unscrew screws (2a) and remove starter switch (2b). 2018661

5520A14


769

5520A16


769

5520A18


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Unloose fixing screws and removesteering column guide.1. Detach down-lead cable.2018668

anti-theft device



5580E08


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238793-7040A26steering column trim- r+r3238799-7040A37fuse box cover - r r1. Disconnect the antenna connection from the power unit.2. Remove the antenna from the starting block.3. Free the cable from the check clamps.4. Remove the antenna unit.2018926

5580E12


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238799-7040A37fuse box cover - r r1. Unscrew the shunt power unit screws .2. Remove the shunt power unit.3. Disconnect the anti-theft device power unit.4. Remove the anti-theft device power unit.5. Disconnect the electric connection.6. Disconnect thel'antenna connection.2018927

5580E18


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238343-5040D22control (one) of airconditioner control support - arrange3238986-7065C42ashtray (one) r+r3238514-5570T80car radio unit - r+r3237934-2125C24gear lever knob - r + r3238802-7040A60under facia trim - r+r3238501-5560C51combined analogue control panel - r+r or replace1. Working from inside the facia, prise the led out of its seat.2. Disconnect the electrical connection and recover the led.2018928

5580E22


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238843-7040H38central pillar upperelement - r r1. Prise the volumetric sensor from its seat in the pillar trim.2018930

5580E24


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238799-7040A37fuse box cover - r r1. Disconnect electrical connections (1a), (1b).2. Undo the nut.3. Remove the switch and bridge.2018931

5580E26



5580E28



5580E30


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Open the bonnet lid and remove the buttons retaining the uppertrim using the special tool.2. Lower the upper trim and disconnect the electrical connectionfor the receiver.3. Unscrew the nuts.4. Remove the receiver.2018932

5580E34


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238853-7040L40front compartment scuff strip - r r (right side). 3238841-7040H36central trim lower element - r r (right side). 1. Lift up the carpet slightly in the area of the tilt sensor.2. Unscrew the bolts3. Move the tilt sensor slightly and disconnect the electrical connection.2018934

5580E46


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238964-7055B42Additional FRONT WHEELARCH (one), left or right - R.R.1. Unscrew the control unit bracket retaining nuts.2. Move control unit bracket (2a) and disconnect electrical connections(2b, 2c).3. Unscrew the nuts retaining the control unit to the bracket.4. Recover the control unit by taking off its bracket.2018935

tailgate locking/opening devices



7015B10


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238832-7040G36BULB HOLDER FOR LOAD CARRYING COMPARTMENT lightingon tailgate - R.R.3238703-7015A05tail-gate lower interior panel-r r1. Disconnect the rod from the lock barrel.2. Remove the lock cover.3. Release the retainer for the electrical connection and disconnectit.4. Unscrew the bolts5. Remove the lock complete with rod and catch.2019064

7015B18


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238813-7040B22luggage compartment/load platform moulding - r+r1. Unscrew the bolts2. Disconnect the operating cable from the retainers.3. Remove the lock striker.2019065

7015B36


Please note the following WARNING.769

7015B38


Please note the following WARNING.769

7015B44


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238853-7040L40front compartment scuff strip - r r (left side) - 7040L44 rear compartment scuff strip - r r (left side) 3238841-7040H36central trim lower element - r r (leftside) 3238916-7050A22rear seat cushion - r+r (leftside) 3238857-7045A10l/h or r/h front seat (one) - r+r (leftside) 3238261-5010C44air diffuser to rear seat - r+r (leftside) 3238716-7015B48Tailgate OPENING CONTROL - R.R.3238813-7040B22luggage compartment/load platform moulding - r+r3238809-7040B15(One), rear side trim mounting BRACKET left or right- R.R . (left side) 3238814-7040B28PET transport PROTECTION and load carrying compartmentCOVER COMBINATION BLIND - R.R.3238928-7050A47SIDE PANEL (one) for rear seat BACKREST., left orright - R.R . (left side) 3238816-7040B30l/h or r/h side support (one) for load platform coverblind - arrange (left side) 3238807-7040B06side trim (one) lh or rh, load compartment/load platform- r r (left side) 3238712-7015B18tailgate lock striker - r+r1. Release the transmission cable from the retaining clips alongthe left side panel.2019068

7015B48


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238853-7040L40front compartment scuff strip - r r (left side) - 7040L44 rear compartment scuff strip - r r (left side) 3238841-7040H36central trim lower element - r r (leftside) 3238916-7050A22rear seat cushion - r+r (leftside) 3238857-7045A10l/h or r/h front seat (one) - r+r (leftside) 3238261-5010C44air diffuser to rear seat - r+r (leftside) 1. Undo the inertia switch protection bolts.2. Remove the inertia switch protection.3. Remove the two floor carpet retaining buttons.4. Lift up the floor carpet along the left side of the vehicle.5. Undo the bolts fixing the opening control.6. Remove the opening control from the carpet.7. Release the outer casings from the retainers (7a) and the endof the cables (7b) from the attachments.Recover the opening control.2019070

7015B54


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238832-7040G36BULB HOLDER FOR LOAD CARRYING COMPARTMENT lightingon tailgate - R.R.3238703-7015A05tail-gate lower interior panel-r r3238711-7015B10single tailgate lock - r+r or repair with panel/protectionremoved1. Disconnect the rod from the lock.2. Recover the rod.2019071

Compartment switch



I15A



I15B



Integrated services control unit



M40A



M40A



M40A



M40A



M40A



M40A



M40B



M40B



M40B



M40B



M40B



M40B



M40B



M40C



M40C



M40C



M40C



Car radio



P20A



P20A



P20A



P20A



P20B



P20B



P20C



P20C



P20C



P20D



P20D



P20D



P20E



P20E



P20E



P20F



car radio and car telephone



5570T14



5570T26


3239058Refer to op..7210G76rear spoiler . 767The aerial for the radio is housedinside the spoiler and cannot be separated from it.

5570T28


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238914-7050A19rear seat squab - rr3238844-7040H42rear pillar trim - r r (Rightside) 1. Disconnect the electric connections (1a, 1b).2. Disconnect the connections of the antenna cable.3. Disconnect the electric connections from the rear window.4. Unscrew the screw.5. Remove the power unit.2018860

5570T31


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238830-7040G24switch for facia compartmentlight - r+r3238829-7040G20facia compartment light bulb holder - r+r3238795-7040A31flap assembly - r r- 7040L44 rear compartment scuff strip - r r (right side) 3238841-7040H36central trim lower element - r r (rightside) 3238853-7040L40front compartment scuff strip - r r (right side) 3238915-7050A20one-piece rear seat cushion - r r3238936-7050B10l/h or r/h head restraint (one) of rear seat - r+r3238914-7050A19rear seat squab - r r3238844-7040H42rear pillar trim - r r (leftand right) - 7040H84 parcel rack plus speaker - r r 1. Disconnect the front connection.2. Disconnect the rear connection.3. Raise the floor carpet along the right side of the car.4. Disconnect the cable from the retaining clips.5. Remove the coaxial cable.2018861

5570T32



5570T59


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Unscrew the aerial.2018863

5570T66


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting217681. Undo the bolt (1a) keeping the washer (1b) still.2. Move the horn contact slightly.3. Disconnect the electrical connections.4. Remove the switch holder surround (4a) releasing it from theretainers (4b).2018866

5570T68


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238527-5580C18air bag module - r+r7681. Disconnect electrical connections (1a), (1b), (1c).2. Lift up the sliding contact (2a) slightly, releasing it fromthe retainers (2b). 3. Disconnect the electrical connection.4. Keep the sliding contact.2018867

5570T80


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Use the radio removal toolssupplied with the car.1. Fit both tools into the slots on the front of the radio and pushin until the mechanism holding the radio in place clicks open.2018868

5570T85


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238808-7040B10load platform (luggage platform) trim - r+r3238813-7040B22luggage compartment/load platform moulding - r+r3238807-7040B06side trim (one) lh or rh, load compartment/load platform- r r1. Disconnect the electrical connection for the CD player/changer.2. Undo the nuts securing the player/changer.3. Remove the player/changer and support. 2018874

5570T86


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Use the radio removal toolssupplied with the car.1. Fit both tools into the slots on the front of the radio and pushin until the mechanism holding the radio in place clicks open. 2018876

5570T90


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238605-7005E22l/h or r/h front doorpanel radio grille (one) - r+r1. Unscrew the screws.2. Move the loudspeaker.3. Disconnect the electric connection and remove theI'loudspeaker.2018879

5570T92


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238577-7005C44interior handle panel- r r1. Rotate the tweeter counterclockwise and extract it.2018880

5570T96


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238679-7010E22grille for radio systemon rear door panel (one) lh or rh - r r1. Unscrew the screws.2. Move the loudspeaker.3. Disconnect the electric connection and remove theI'loudspeaker.2018881

5570T98


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Open the boot lid.1. Undo the fastenings of the upper luggage compartment trim.2. Lower the trim.3. Disconnect the loudspeaker's electrical connection.2018882