AUTOMOTIVE ELECTRICIANS

Fiat STILO 1.2 16v Fino a 04/2005 – TYRE INFLATION PRESSURE CONTROL SYSTEM – – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION

Wiring diagram

Components
Component codeNameAssembly reference
B2Junction unit under dashboard5505A
B99Maxifuse box on battery5530B
C11Right front earth-
C15Facia earth, driver's side-
D6Front / rear coupling-
D6Front/rear coupling-
D97Short circuiting coupling-
E50Instrument panel5560B
H1Ignition switch5520A
M1Body computer5505A
M47Tyre inflation pressure control unit-
Location of components

Components
Component codeNameAssembly reference
B2Junction unit under dashboard5505A
B99Maxifuse box on battery5530B
C11Right front earth-
C15Facia earth, driver's side-
D6Front / rear coupling-
D6Front/rear coupling-
D97Short circuiting coupling-
E50Instrument panel5560B
H1Ignition switch5520A
M1Body computer5505A
M47Tyre inflation pressure control unit-
DescriptionThere is a sensor on each tyre valve that measures the pressure and temperature of the actual tyre: this signal is transmitted via RF to an aerial, incorporated in the electronic control unit which manages and controls the system: the control unit sends this information to the Body Computer via the serial line: the 'insufficient pressure' signal for the tyre concerned is sent via the CAN to the instrument panel which activates the appropriate signals.The control unit supply lines are protected by special fuses in the underdashboard control unit.
Functional description The control unit M47 is supplied at pin 8 directly from the battery by the line protected by maxifuse F39 of the underdashboard control unit B2 . The supply controlled by the ignition (INT) reaches pin 5 from the line protected by fuse F51 of the underdashboard control unit B2 . The control unit is earthed at pin 7. The serial line connected to the Body Computer M1 leaves from pin 3 of M47 . Self-diagnostic data can be read by connecting to connector C of Body Computer M1 - pin 1: it receives signals from pin 4 of the control unit M47 via the special diagnostic line. 3361166SeeE8010DIAGNOSTIC MULTIPLE CONNECTORThe aerial that receives the signals for the wheel sensors is incorporated in the actual control unit.

Junction unit under dashboard



B2A



B2A



B2A



B2A



B2B



B2C



B2D



B2D



B2D



B2D



B2E



B2G



B2H



MULTI-FUNCTION COMPONENTS



5505A10


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Disconnect the negative battery terminal.1. Remove the junction unit protective cover.192009560

5505A35


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213363098-5530B56BATTERY DRIP TRAY COVER- R.R.Disconnect the battery negative terminal.3363361-7040A44facia lh side cover - r r1. Disconnect the front electrical connectors of the junction unitcomplete with body computer.2. Unscrew the retaining bolts.3. Remove from its seating the junction unit complete with bodycomputer.4. Disconnect the rear electrical connectors of the junction unitcomplete with body computer.2027438

5505A36


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Separate the junction unit (1a) from the body computer (1b),by releasing the retaining lugs (1c).2027440

5505A41


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213363098-5530B56BATTERY DRIP TRAY COVER- R.R.Disconnect the battery negative terminal.3363151-5580C18air bag module - r+r . 769- 4110A16 steering wheel - r r for replacement or checks forversions with airbag and manual gearbox with hydraulic selection . 1. Disconnect the electrical connectors (1a) and remove the controlunit (1b) from its seating.2027441

5505A42



5505A43


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Disconnect the electrical connectors (1a) and (1b).2. Undo the fixing bolts (2a) and remove the door node (2b).2027444

5505A48


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213363098-5530B56BATTERY DRIP TRAY COVER- R.R.Disconnect the battery negative terminal.3363442-7050A06LEFT SLIDING REAR SEAT - R.R.3363402-7040L44rear compartment scuff strip - r r1. Undo the fixing bolts (1a) on the left side trim of the luggagecompartment (1b).2. Unscrew the seat belt retaining bolt.Move aside the luggage compartment sidetrim.3. Disengage and move aside the carpet from the pressure fixings.2027445

Maxifuse box on battery



B99A



B99B



B99C



B99D



B99D



B99E



BATTERY AND LEADS



5530B10


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213363098-5530B56BATTERY DRIP TRAY COVER- R.R.1. Release the clips and remove the protective cover for the uniton the battery.2. Undo the bolts (2a) and remove the battery fixing bracket (2b).3. Slacken the nut and disconnect the battery's negative terminal.2027495

5530B52


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Op. 5530B56 BATTERY DRIP TRAY COVER - R.R.3363098Op. 5530B10 BATTERY - R+R3363096- Disconnect the engine management unit electrical connections.Release the wiring from the retaining bands.1. Undo the rear fixing bolt (1a), release the front fastenings (1b) and place the engine compartment junction unit (1c) at the side.192008351

5530B56


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Undo the fixing bolts (1a) and remove the battery cover (1b).2027502

Right front earth



C11



Facia earth, driver's side



C15A



C15B



C15C



C15C



Front / rear coupling



D6



D6



D6



D6



D6



Short circuiting coupling



D97A



D97B



D97B



D97B



D97B



D97C



D97C



D97C



D97C



D97D



D97D



D97D



D97D



D97D



D97D



D97E



D97F



D97F



D97G



D97H



D97H



D97I



D97I



D97J



D97K



D97K



D97L



D97L



D97M



D97N



D97P



D97Q



D97R



Instrument panel



E50A



E50B



E50C



analogue control panel



5560B10


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213363098-5530B56BATTERY DRIP TRAY COVER- R.R.Disconnect the battery negative terminal.3363357-7040A26steering column trim - r+r1. Undo the bolts fixing the analogue instrument panel trim.2. Remove the trim under the instrument panel.3. Undo the upper bolts fixing the instrument panel to the dashboard;then partly release the panel.2027547

Ignition switch



H1A



H1A



H1A



H1A



H1B



ignition switch



5520A12


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213363098-5530B56BATTERY DRIP TRAY COVER- R.R.Disconnect the battery negative terminal.3363357-7040A26steering column trim - r+r1. Disconnect the ignition block electrical connectors.2027465

5520A14


767 It is not possible toorder a single lock barrel or to order barrels using a single partcode. When ordering barrels, observe the special procedure illustrated 3363161See assembly5580E anti-theft device .

5520A18


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting213363098-5530B56BATTERY DRIP TRAY COVER- R.R.Disconnect the battery negative terminal.3363357-7040A26steering column trim - r+r1. Disconnect the electrical connectors of the ignition block (1a)and Cruise Control (1b).2. Release the retaining clips on the ignition switch contact block.2027470

Body computer



M1A



M1A



M1A



M1A



M1A



M1A



M1B



M1B



M1B



M1B



M1C



M1D



M1D



M1D



M1D



M1E



M1E



M1E



M1E



M1F



M1G



M1H



M1I



Tyre inflation pressure control unit



M47


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