AUTOMOTIVE ELECTRICIANS PORTAL - FZCO

Alfa Romeo 156 2.4 JTD 20v da 04/98 a 02/99 – DIPPED HEADLAMPS – – 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 – DIPPED HEADLAMPS –  – 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-
B99Maxifuse box on battery-
B99Maxifuse box on battery5530B
C10Front left earth5505A
C11Right front earth-
C11Right front earth5505A
C20Passenger side dashboard earth5505A
D2Front / crossmember coupling-
D2Front /crossmember connection-
D5Front / ABS couping-
D5Front / ABS coupling-
E15Rev counter5560B
F10Left headlamp-
F10Left headlamp5540B
F11Right headlamp-
F11Right headlamp5540B
H1Ignition switch5520A
H5Steering column switch unit5550A
J45Dipped beam maintenance relay-
J45dipped beam maintenance relay-
Location of components

Components
Component codeNameAssembly reference
B1Junction unit5505A
B5MAXI FUSE box-1-
B5MAXI FUSE-1 box-
B5MAXIFUSE box-1-
B99Maxifuse box on battery-
B99Maxifuse box on battery5530B
C10Front left earth5505A
C11Right front earth-
C11Right front earth5505A
C20Passenger side dashboard earth5505A
D2Front / crossmember coupling-
D2Front /crossmember connection-
D5Front / ABS couping-
D5Front / ABS coupling-
E15Rev counter5560B
F10Left headlamp-
F10Left headlamp5540B
F11Right headlamp-
F11Right headlamp5540B
H1Ignition switch5520A
H5Steering column switch unit5550A
J45Dipped beam maintenance relay-
J45dipped beam maintenance relay-
DescriptionThe car is equipped with two dipped beam headlamps.The dipped beam headlamps are switched onthrough the steering column switch unit by turning the special ringnut in the position after the side lights.A special relay - on the right hand side,under the dashboard - keeps the dipped headlamps on with the mainbeam headlamps on.The circuit is protected by two fuses, onefor the right hand headlamp, one for the left hand headlamp.The dipped beam circuit also enables theheadlamp alignment device and rear fog lamps for operation.
Functional description The circuit for the dipped beam headlamps is operated by thesteering column switch unit H5 . By placing the switch in the dipped beamposition, the line which supplies the headlamps F10 (left)and F11 (right) is supplied controlled by the ignition. Eachcircuit is protected by a fuse for the junction unit B1 : F5 forthe left headlamp and F4 for the right one. With the dipped beam headlamps on, thissupply passes through the dipped beam headlamps maintenance relay/remotecontrol switch J45 . If the lights are switched from dipped tomain beam, the suply is interrupted, but it is replaced by the onefrom pin 87 of switch J45 : the signal for switching on themain beam headlamps, in effect, energizes the relay (pin 86) which switchesthe supply to the direct line (maxifuse J/B2 of B5 to2/99 or B99 from 2/99) which thereby also keeps the circuitfor the dipped headlamps and the main beam headlamps on. The supply line for the left lamp also actsas a go ahead signal for the headlamp alignment ( 3234184SeeE3080HEADLAMP AGLINMENT CORRECTOR )and the rear fog lamps (check device inside the rev counter module E15)(3233898SeeE2031REAR FOG LAMPS ).

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



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

Front left earth



C10A



C10A



C10A



C10A



C10A



C10A



C10A



C10A



C10A



C10B



C10B



C10B



C10B



C10C



Right front earth



C11B



C11B



C11



C11



C11



C11



C11



C11



C11



C11



Passenger side dashboard earth



C20A



C20A



C20B



C20B



C20B



C20B



Front / crossmember coupling



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2A



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2B



D2C



D2C



Front / ABS couping



D5A



D5A



D5A



D5A



D5A



D5B



D5B



D5B



D5B



D5B



D5B



D5B



D5B



D5B



D5B



D5B



D5B



D5



D5



D5



D5



D5



D5



D5



D5



D5



D5



D5



D5



D5



D5



D5



D5



D5



D5



D5



D5



D5



D5



D5



D5



D5



D5



D5



D5



Rev counter



E15A



E15A



E15A



E15A



E15A



E15B



E15B



E15B



E15B



E15B



E15B



E15B



E15B



E15B



E15B



E15B



E15B



E15B



E15B



E15B



E15B



E15B



E15B



E15B



E15B



analogue control panel



5560b02


<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

5560B12



Left headlamp



F10A



F10A



F10A



F10A



F10A



F10A



F10B



F10B



F10B



F10B



headlamps



5540B16


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238952-7055A43central front grille - r r3238951-7055A41RIGHT FRONT GRILLE - R.R. (leftand right) It is advisable to place the vehicle on a lift.1. Undo the bolts fixing the end of the front bumper.2. Release the wheel arch liner from the front bumper using thespecial tool in the area where the bolts were removed. 3. Working from the bottom, undo the two bolts securing the bumperto the wing.2018790

5540B22


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238721-7025A12Engine front sound insulation COVER - R.R.3238722-7025A14Bonnet LID - R.R.

5540B26


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238721-7025A12Engine front sound insulation COVER - R.R.3238722-7025A14Bonnet LID - R.R.

5540B28



5540B38



5540B42



5540B43


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Undo the bolts.2. Remove control unit (2a) by disconnecting from electrical connection(2b).2018803

5540B44


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238721-7025A12Engine front sound insulation COVER - R.R.3238722-7025A14Bonnet LID - R.R.

5540B46


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238721-7025A12Engine front sound insulation COVER - R.R.3238722-7025A14Bonnet LID - R.R.

5540B47


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Open the bonnet lid.

5540B48


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Open the bonnet lid.1. Rotate the cover in an anti-clockwise direction and extract it.2. Extract the bulb holder and bulb (press fit).3. Extract the bulb from the bulb holder.2018810

5540B70


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238964-7055B42Additional FRONT WHEEL ARCH (one), left or right- R.R. (left and right) 3238951-7055A41RIGHT FRONT GRILLE - R.R. (leftand right) 3239044-7210E10R.R. FRONT BUMPER1. Unscrew the nuts.2. Move the light cluster (2a) releasing the pin and retainer fromits housing (2b).3. Disconnect the electrical connections (3a, 3b, 3c).4. Recover the light cluster.2070082

5540B71


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238964-7055B42Additional FRONT WHEEL ARCH (one), left or right- R.R. (left and right) 3238951-7055A41RIGHT FRONT GRILLE - R.R. (leftand right) 3239044-7210E10R.R. FRONT BUMPER1. Unscrew the nuts.2. Move the light cluster (2a) releasing the pin and retainer fromits housing (2b).3. Disconnect the electrical connections (3a, 3b, 3c).4. Recover the light cluster.2070083

5540B83


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238952-7055A43central front grille- r r . 3238951-7055A41RIGHT FRONT GRILLE - R.R. (right andleft). 767It is advisable to place the vehicleon a lift.1. Undo the bolts fixing the ends of the front bumper.2. Release the wheel arch liner from the front bumper, using thespecial tool, in the area where the bolts were removed. 3. Working from the bottom, undo the two bolts securing the bumperto the wing.2018811

Right headlamp



F11A



F11A



F11A



F11A



F11A



F11A



F11B



F11B



F11B



F11B



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

Steering column switch unit



H5A



H5A



H5A



H5B



H5B



H5B



H5B



H5C



H5C



H5D



H5D



H5D



H5E



stalk unit



5550A12


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238527-5580C18air bag module - r+r7683238121-4110A11steering wheel - r+r for replacement or check forversions with air bag3238793-7040A26steering column trim - r+r3238525-5580C12clock spring for air bag module on steering wheelr rClosely follow the safety regulations established for this operation.1. Loosen the band fixing the steering column switch unit.2. Move the steering column switch unit.3. Disconnect the electrical connections (3a, 3b, 3c).2018830

Dipped beam maintenance relay



J45



J45



J45