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Alfa Romeo 156 1.9 JTD 16v da 04/98 a 02/99 — AIRBAG — — WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION — WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION

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Alfa Romeo 156 1.9 JTD 16v da 04/98 a 02/99 — AIRBAG — — WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION — WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION Download PDF file
Wiring diagram
AIRBAG - Wiring diagram Alfa Romeo 156 1.9 JTD 16v da 04/98 a 02/99Получить доступ ко всем электросхемам автомобиляDownload PDF file

(*) segnali presenti solo nella configurazione completa.Components
Component codeNameAssembly reference
B11Controls lighting fuse-
B30ABS fuse and Air Bag-
B98Supplementary fuse box5505A
C50Air Bag earth5505A
D1Front / dashboard connection-
D1Front / dashboard coupling-
D47Clock spring coupling-
D60Air Bag connection-
D61Pretensioner connection-
D61Pretensioner coupling-
E10Speedometer5560B
E30Check control5560C
H1Ignition switch5520A
H75Passenger's Air Bag disablement switch5580C
K65Sensor in seat for disabling passengerAir Bag5580C
K65Sensor in seat for disabling passenger'sAir Bag5580C
K66Sensor for driver's Side Bag-
K66Sensor for driver's Side Bag5580C
K67Sensor for passenger Side Bag-
K67Sensor for passenger Side Bag5580C
M60Air bag control unit5580C
Q9Driver's Air Bag5580C
Q10Clock spring on steering wheel5580C
Q11Air Bag in dashboard (passenger side)5580C
Q20Driver's seat belt pre-tensioner7065A
Q21Front passenger seat belt pre-tensioner7065A
Q30Driver's Side Bag5580C
Q31Passenger Side Bag5580C
Q40Driver's Head Bag7095B
Q41Passenger Head Bag7095B
R10Multiple tester connection-
Location of components
AIRBAG - Location of components Alfa Romeo 156 1.9 JTD 16v da 04/98 a 02/99Получить доступ ко всем электросхемам автомобиляDownload PDF file

(*) componenti presenti solo nella configurazione completaComponents
Component codeNameAssembly reference
B11Controls lighting fuse-
B30ABS fuse and Air Bag-
B98Supplementary fuse box5505A
C50Air Bag earth5505A
D1Front / dashboard connection-
D1Front / dashboard coupling-
D47Clock spring coupling-
D60Air Bag connection-
D61Pretensioner connection-
D61Pretensioner coupling-
E10Speedometer5560B
E30Check control5560C
H1Ignition switch5520A
H75Passenger's Air Bag disablement switch5580C
K65Sensor in seat for disabling passengerAir Bag5580C
K65Sensor in seat for disabling passenger'sAir Bag5580C
K66Sensor for driver's Side Bag-
K66Sensor for driver's Side Bag5580C
K67Sensor for passenger Side Bag-
K67Sensor for passenger Side Bag5580C
M60Air bag control unit5580C
Q9Driver's Air Bag5580C
Q10Clock spring on steering wheel5580C
Q11Air Bag in dashboard (passenger side)5580C
Q20Driver's seat belt pre-tensioner7065A
Q21Front passenger seat belt pre-tensioner7065A
Q30Driver's Side Bag5580C
Q31Passenger Side Bag5580C
Q40Driver's Head Bag7095B
Q41Passenger Head Bag7095B
R10Multiple tester connection-
DescriptionThe car may be fitted with an electronically-controlled safetysystem that sets off the front seat belt pretensioners and the driver'sair bag, passenger air bag and sidebags in the case of frontal and/orside impact of a certain severity.An electronic control unit manages the entiresystem by controlling all the components and activating the restraintsystems (pretensioners and airbags) as necessary.The control unit has two differentintervention levels:at the first level only the pretensioners are activatedthe second level operates both airbags and pretensioners.The control unit is located under the centreconsole and is rigidly fixed to the bodyshell: in this way the decelerationsensors located inside it are close to the centre of gravity anddetect deceleration for the entire vehicle accurately.The driver's Air Bag module is located inthe centre of the steering wheel; it is fitted on a tilting platewhich enables the horn to be operated. The plate houses a metalcontainer which holds the folded airbag and a gas generator that inflatesthe bag.A clock spring device allows the airbagmodule connection leads to turn with the steering wheel withoutthe risk of breakage.The passenger airbag is located on the facia,above the glove compartment, and is fastened directly to the carcrossmember via a special bracket.
Functional description The Air Bag system control unit M60 receives a supplycontrolled by the ignition (15/54) at pin 15 from the line protectedby shunt fuse B30 up to 3/98 or B32 from 3/98. up to 2/99 or from fuse F5 from supplementary fuse box B98A from2/99. Pin 14 is connected to the specific earth C50 ,like pin 30, on "complete" versions, i.e. with a passengerAir Bag. (on versions with a driver's Air Bag only, pin 30 is notconnected). When an impact of a set severity(determined by the control software) is detected, the control unitsends control signals to set off the modules:to driver's Air Bag Q9 , via the steering wheelclockspring Q10 (from pins 1 and 2):to passenger airbag Q11 (from pins 3 and 4);to driver's side pretensioner Q20 (from pins 10and 11) and passenger side pretensioner Q21 (from pins 6and 7).

Controls lighting fuse



B11



B11



ABS fuse and Air Bag



B30



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



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



Front / dashboard connection



D1B



D1B



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



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



D1



Pretensioner connection



D61A



D61A



D61A



D61B



D61B



D61B



D61C



D61C



D61



D61



D61C



D61C



D61D



D61D



D61E



D61E



Power supply and earths



E1010



E1020



E1020



E1020



E1010



E1010



E1010



E1010



E1010



E1010



E1010



E1010



E1010



E1010



E1010



E1010



E1010



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



other instruments



5560C51


<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+r1. Unscrew the bolts2. Move the analogue instrument panel.3. Disconnect the electrical connection and keep the instrument.2018851

5560C60


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Remove the component with theIU+2019 special tool .2. Disconnect the electric connection and remove the component.2018855

5560C64



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

Passenger's Air Bag disablement switch



H75



H75



H75



H75



H75



air bag system



5580C12


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Place the steering wheel inthe centred position with the wheels straight.3238527-5580C18air bag module - r+rClosely observe the safety regulations established for this operation.3238121-4110A11steering wheel - r+r for replacement or check forversions with air bag3238793-7040A26steering column trim - r+r1. Disconnect the electrical connections.2. Unscrew the bolts3. Remove the clock spring.7692018885

5580C14


768768

5580C18


768768

5580C22


768768

5580C26


768

5580C28


768

5580C40


768

5580C44


768767 FOLLOW ALL THE RECOMMENDED SAFETYRULES ( 3238524See assembly5580C air bag system -Precautions).

5580C50



5580C52



5580C80


769769

5580C82


769769

5580C86


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Take the following precautions.769768- 7040L44 rear compartment scuff strip - r r (leftand right sides) 3238841-7040H36central trim lower element - r r (leftand right sides) 3238853-7040L40front compartment scuff strip - r r (leftand right sides) 3238857-7045A10l/h or r/h front seat (one) - r+r (leftand right sides) 3238915-7050A20one-piece rear seat cushion - r r3238803-7040A65passenger compartment box lock , one , r r (leftand right sides) 3238343-5040D22control (one) of air conditioner control support- arrange3238986-7065C42ashtray (one) r+r3238514-5570T80car radio unit - r+r3237934-2125C24gear lever knob - r + r3238802-7040A60under facia trim - r+r3238117-3380A44handbrake/linkage protection - r+r3238851-7040L28tunnel switch panel - r r3238849-7040L20tunnel trim - r r3238251-5010B46central air duct to rear seat - arrange3238261-5010C44air diffuser to rear seat - r+r (leftand right sides) 3238848-7040L10cabin floor carpet - r r1. Disconnect the electrical connection for the cable loom.2. Release the cable loom from the retaining bands.3. Remove the wiring harness.2018920

5580C92


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Take the following precautions.7683238857-7045A10l/h or r/h front seat (one) - r+r3238894-7045B10l/h or r/h front seat head restraint - r+r3238866-7045A25squab lumbar knob - r r3238865-7045A24squab knob - r r3238872-7045A43seat exterior guard - r r3238873-7045A44seat interior guard - r r3238532-5580C44front side bag module one lh or rh r r3238861-7045A20SQUAB COMPLETE with a front seat with air-bag, heightadjustment and lumbar adjustment, left or right - R.R.1. Prise up the retaining stud from both sides of the seat usingthe special tool.2. Prise up trim surround (2a) using the special tool. Start fromone lateral end. The detail in the figure shows a cross-sectionof profile (2b) securing trim (2a) in place. 2018923

Sensor in seat for disabling passenger Air Bag



K65



K65



Sensor for driver's Side Bag



K66



K66



K66



K66



Sensor for passenger Side Bag



K67



K67



K67



K67



Air bag control unit



M60A



M60A



M60A



M60B



M60B



M60B



M60



M60



Driver's Air Bag



Q9



Clock spring on steering wheel



Q10



Q10



Q10



Q10



Air Bag in dashboard (passenger side)



Q11



Q11



Q11



Q11



Q11



FRONT SEAT BELTS



7065A12


768

7065A14


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238857-7045A10l/h or r/h front seat(one) - r+r1. Unscrew screw.2. Remove tie rod (2a) and its positioning washer (2b).2019505

7065A18


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213238843-7040H38central pillar upperelement - r r1. Unsrew screws.2. Remove safety belt height regulator.2019506

7065A80


768768

Front passenger seat belt pre-tensioner



Q21



Q21



Q21



Q21



Driver's Side Bag



Q30



Q30



Q30



Q30



Passenger Side Bag



Q31



Q31



Q31



Q31



Driver's Head Bag



Q40



Q40



Q40



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

Passenger Head Bag



Q41



Q41



Q41



Multiple tester connection



R10



R10



R10



R10



R10



R10



R10



R10



R10



R10



R10



R10



R10



R10



R10



R10



R10



R10



R10



R10



R10


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