AUTOMOTIVE ELECTRICIANS

Alfa Romeo 156 2.4 JTD 20v da 10/03 — REAR WINDOW WASH/WIPE — — Station Wagon — WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION — WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION

Alfa Romeo 156 2.4 JTD 20v  da 10/03 — REAR WINDOW WASH/WIPE —  — Station Wagon — WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION — WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION Download PDF file
Wiring diagram

Components
Component codeNameAssembly reference
B1Junction unit5505A
B98Supplementary fuse box5505A
C10Front left earth5505A
C20Passenger side dashboard earth5505A
C30Left rear earth5505A
D5Front / ABS couping-
D5Front / ABS coupling-
D6Front / rear connection-
D6Front / rear coupling-
D20/Rear dashboard coupling-
D20Dashboard/rear connection-
D87Left tailgate / rear coupling-
D87Left tailgate rear coupling/-
H1Ignition switch5520A
H5Steering column switch unit5550A
I20Reversing lights switch5550D
M79Windscreen wiper control unit5050B
N16Rear window wiper motor7095B
N22Electric windscreen / rearscreenwasher pump motor5050B
Location of components

Components
Component codeNameAssembly reference
B1Junction unit5505A
B98Supplementary fuse box5505A
C10Front left earth5505A
C20Passenger side dashboard earth5505A
C30Left rear earth5505A
D5Front / ABS couping-
D5Front / ABS coupling-
D6Front / rear connection-
D6Front / rear coupling-
D20/Rear dashboard coupling-
D20Dashboard/rear connection-
D87Left tailgate / rear coupling-
D87Left tailgate rear coupling/-
H1Ignition switch5520A
H5Steering column switch unit5550A
I20Reversing lights switch5550D
M79Windscreen wiper control unit5050B
N16Rear window wiper motor7095B
N22Electric windscreen / rearscreenwasher pump motor5050B
DescriptionThe rearscreen wiper is operated by turningthe ring nut on the end of the lever located on the right of thesteering wheel.By pushing the lever gently towards thesteering wheel the rearscreen washer function is activated; thesame pump is used as for the windscreen washer (two-way), but itrotates in the opposite direction and sends the detergent fluid tothe rear.If the lever is kept pressed, the rearscreenwiper comes on and operates for a few moments after the lever isreleased. When the lever is released, the windscreen wipers willcontinue to operate for several strokes.The rearscreen wash/wipe can only be operatedwith the ignition switched ON.The windscreen wash/wipe circuit is protectedby a specific fuse and is operated by the ignition-operated relaylocated in the junction unit.
Functional description The stalk unit H5 is supplied atpin 3 of connector D from the ignition-operated line (INT/A) ofthe relay R1 protected by the fuse F14 : both arecontained in the junction unit B1 . The rear wiper is activated by stalk switch H5 viaa signal sent by pin 1 of connector D to rear wiper motor N16 . When operated, the windscreen washer switchon the steering column switch unit H5 sends two signals frompin 8 and pin 9 of connector A, which reach the pump for operatingthe windscreen washer N22 directly. The motor is operatedupon a command from stalk switch H5 in the opposite mannerto that described for the washer function (when the motor is operatedin reverse, it sends fluid to the back instead of to the front). One of the two signals (pin 2 of connectorD of H5 ) is sent to electronic device inside rear wiper motor N16 that controls the operation of the rear wiper in conjunctionwith the rear washer. The rear wiper motor N16 is thenconnected to earth. It consists of the actual geared motor, theend of travel contacts and the electronic adjustment and controldevice.

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



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



Front left earth



C10A



C10A



C10A



C10A



C10A



C10A



C10A



C10A



C10A



C10B



C10B



C10B



C10B



C10C



Passenger side dashboard earth



C20A



C20A



C20B



C20B



C20B



C20B



Left rear earth



C30



C30



C30



C30



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



Front / rear connection



D6A



D6A



D6A



D6A



D6A



D6A



D6A



D6A



D6A



D6A



D6A



D6B



D6B



D6B



D6B



Left tailgate / rear coupling



D87



D87



D87



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

Reversing lights switch



I20



I20



I20



brake and reversing lights



5550D10


<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

5550D14



5550D16


<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

5550D26



Windscreen wiper control unit



M79



windscreen wash/wipe



5050B10


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Lift the bonnet lid and move the jet with the tool.2. Disconnect the jet from the pipe.2018596

5050B20


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

5050B28


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Lift the wiper arm.2. Press on the end with stop (2a) of the support (2b) and removethe blade (2c) from the arm end.2018600

5050B32


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238363-5050B28windscreen wiper blade/s- r+r1. Lift the bonnet lid and move the nut cover.2. Unscrew the nut.3. Remove the wiper arm.2018601

5050B34


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Lift the bonnet lid and move the nut covering.2. Unscrew the nut.3. Remove the wiper arm.2018602

5050B38


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238365-5050B34windscreen wiper arm/scomplete with blade - r+r3238948-7055A18Windscreen base TRIM - R.R.1. Remove the motor guard.2. Disconnect the electrical connection.3. Unscrew.4. Remove the windscreen wiper assembly.2018603

5050B42


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238365-5050B34windscreen wiper arm/scomplete with blade - r+r3238948-7055A18Windscreen base TRIM - R.R.3238366-5050B38windscreen wiper assembly - r+r or repair1. Operating on the bench, unscrew the central nut.2. Unscrew the motor fastening screws.3. Remove the motor.2018604

5050B50


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Disconnect the electrical connection.2. Disconnect stop springs.3. Remove the intermittent function.2018606

5050B52


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238365-5050B34windscreen wiper arm/scomplete with blade - r+r1. Unscrew the left lining.2. Release the lining from the stops with l' the tool, then moveit.3. Remove the motor guard.4. Disconnect electrical connections (4a, 4b).5. Disconnect stop springs.6. Remove the intermittent function l'.2018607

5050B54


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238365-5050B34windscreen wiper arm/s complete with blade - r+r (rightside). 1. Release the protection.2. Undo the bolts fixing the right trim.3. Move the trim after having released the inner retainers usingthe special tool.2018608

5050B64


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Working on the interior rear view mirror mounting, open the cover.2. Move the rain sensor slightly.7693. Disconnect the electrical connection and recover the sensor.2018611

Rear window wiper motor



N16



interventions on mechnical parts



7095B02



7095B03



7095B28



7095B29



7095B55



7095B58


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21The entire roof trim must beremoved before the curtain airbag module can be removed. For cars with sun-roof 3238837-7040H16roof panel lining -r r (with associated preliminary operations) For cars without sun-roof. 3238835-7040H10roof panel lining -r r (with associated preliminary operations) The rear parcel shelf also has to be removedfor the saloon version. 3238846-7040H80parcel rack3239002-7095B59AIR BAG MODULE with BLIND (one- ) (head),bag leftor right - R.R. with interfering components removed

7095B59


768768

7095B66


<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 r3238704-7015A06tail-gate upper interior panel-r r3238813-7040B22luggage compartment/load platform moulding - r+r3238809-7040B15(One), rear side trim mounting BRACKET left or right- R.R .3238814-7040B28PET transport PROTECTION and load carrying compartmentCOVER COMBINATION BLIND - R.R.- 7040L44 rear compartment scuff strip - r r 3238928-7050A47SIDE PANEL (one) for rear seat BACKREST., left orright - R.R .3238816-7040B30l/h or r/h side support (one) for load platform coverblind - arrange3238844-7040H42rear pillar trim - r r3238836-7040H12Roof panel REAR TRIM - R.R.- 7040B23 back upper side trim (1), lh or rh - r r 3238807-7040B06side trim (one) lh or rh, load compartment/load platform- r r1. Disconnect the pipe from the windscreen washer jet.2. Disconnect the electrical connections (2a, 2b, 2c, 2d, 2e).3. Release the wiring retainers.4. Prise up the top end of the cable gaiter.5. Withdraw the wiring assembly (5a) from the tail-gate by takingout of opening (5b).2019567

7095B68


<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 r3238704-7015A06tail-gate upper interior panel-r r3239005-7095B72CONTROL UNIT FOR RADIO AERIAL IN HEATED REAR WINDSCREEN- R.R.3238813-7040B22luggage compartment/load platform moulding - r+r3238809-7040B15(One), rear side trim mounting BRACKET left or right- R.R .3238814-7040B28PET transport PROTECTION and load carrying compartmentCOVER COMBINATION BLIND - R.R.- 7040L44 rear compartment scuff strip - r r 3238928-7050A47SIDE PANEL (one) for rear seat BACKREST., left orright - R.R .3238816-7040B30l/h or r/h side support (one) for load platform coverblind - arrange3238844-7040H42rear pillar trim - r r3238836-7040H12Roof panel REAR TRIM - R.R.- 7040B23 back upper side trim (1), lh or rh - r r 3238807-7040B06side trim (one) lh or rh, load compartment/load platform- r r1. Disconnect electrical connections (1a), (1b), (1c).2. Undo the wiring retainers.3. Prise up the top end of the wiring duct gaiter.4. Remove the right-hand tail-gate wiring (4a) by taking out ofopening (4b).2019569

7095B72



7095B76


<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 r3238704-7015A06tail-gate upper interior panel-r r3239058-7210G76rear spoiler1. Undo retainer (1a) and move the rear washer jet (1b) slightlyto one side.2. Disconnect the pipe.3. Recover the rear washer jet.2019572

7095B80


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Release the end (1a) of the blade from retainer (1b), then withdrawfrom the other retainers (1c).2019574

7095B82


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Lift up the nut cover.2. Undo the nut.3. Remove the wiper arm.4. Remove the protection if necessary.2019575

7095B86


<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 r3239008-7095B82Rear windscreen wiper WIPER ARM. - R.R.1. Disconnect the electrical connections.2. Unscrew the bolts3. Remove the motor.2019577

7095B88



7095B89


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Disconnect the electrical connection.2. Release intermittence (2a) from retainer (2b), then from retainer(2c).3. Recover the intermittence. Take care not to damage the contactstrips (3a).2019579

Electric windscreen / rearscreen washer pump motor



N22



N22


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