AUTOMOTIVE ELECTRICIANS

Fiat IDEA 1.4 16v – RADIO – – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION

Fiat IDEA 1.4 16v   – RADIO –  – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION
Wiring diagram

COMPONENTS
Component codeNameAssembly reference
B1Engine compartment junction unit5505A
B2Junction unit under dashboard5505A
B98Supplementary fuse box-
C20Passenger side dashboard earth-
C31Rear right earth-
D20/Rear dashboard coupling-
D30Rear coupling for /front door. driver's side-
D31Front passenger door/ rear coupling.-
D35Rear / rear door coupling left-
D36Rear/right door coupling right-
D47Clock spring coupling5580C
D97Short circuiting coupling-
H1Ignition switch5520A
M1Body computer5505A
M93Steering wheel node junction unit-
P20Radio7040A
P30Left rear speaker5570T
P31Right rear speaker5570T
P35Speaker in driver's .front door5570T
P36Speaker in front passenger door5570T
P45Driver's front tweeter speaker7040H
P46Front passenger side tweeter speaker7040H
P47Rear left tweeter speaker-
P48Rear right tweeter speaker-
P70Radio amplifier-
P75CD multi-player-
Location of components

COMPONENTS
Component codeNameAssembly reference
B1Engine compartment junction unit5505A
B2Junction unit under dashboard5505A
B98Supplementary fuse box-
C20Passenger side dashboard earth-
C31Rear right earth-
D20/Rear dashboard coupling-
D30Rear coupling for /front door. driver's side-
D31Front passenger door/ rear coupling.-
D35Rear / rear door coupling left-
D36Rear/right door coupling right-
D47Clock spring coupling5580C
D97Short circuiting coupling-
H1Ignition switch5520A
M1Body computer5505A
M93Steering wheel node junction unit-
P20Radio7040A
P30Left rear speaker5570T
P31Right rear speaker5570T
P35Speaker in driver's .front door5570T
P36Speaker in front passenger door5570T
P45Driver's front tweeter speaker7040H
P46Front passenger side tweeter speaker7040H
P47Rear left tweeter speaker-
P48Rear right tweeter speaker-
P70Radio amplifier-
P75CD multi-player-
DescriptionThe vehicle has a radio system comprising:radiofront speakers (woofers located in the doors and separate tweeters);rear speakers located in the rear side panel;radio supply cables;leads connecting the radio to the speakers;fishpole antenna with base mounted on the rear of the roof, coaxial cable and supply cable for aerial amplifier. It is also possible to install a sophisticated Hi Fi system equipped with specific high fidelity loudspeakers with external amplifier 2399299SeeE3510RADIO . The radio is a node on the CAN network through which it exchanges information with the Body Computer and the other electronic units.The radio has an anti-theft system made by connecting the radio on the CAN network to the Body Computer.The radio also manages the volume control linked to the vehicle speed: there is an increase and decrease in volume in accordance with the vehicle speed: this information reaches the radio node via the CAN.Some versions have a set of buttons on the steering wheel: these make is possible to 'duplicate' some commands which are acquired in the same way by the radio.A multi-pole cable connecting the radio to the CD player, located in the boot, on the left hand side, may be fitted on request. For more details 2398710Characteristic of working principle5570ACCESSORIES .
Functional description The radio P20 is supplied directly (4 of connector A) from the battery via the line of fuse F39 of the unit under the dashboard B2. Pins 1 and 3 of connector A receive the CAN line with which the radio P20 is connected to the Body Computer M1 and the other nodes of the system. Pin 8 of connector A is earthed. Pin 6 of connector A of P20 receives the supply for the dimmed lighting coming from pin 12 of connector B of E50 See E2530 INSTRUMENT LIGHTING . The radio P20 is connected to the radio controls on the steering wheel in the steering wheel control unit M93 which is a node of the CAN 2401120SeeE1050CAN CONNECTION LINES .; the connection takes place through the clock spring D47. The steering wheel control unit M93 receives an igition-operated supply (INT) - pin 57 - via the line for fuse F49 of the junction unit under the dashboard B2. The aerial P25 is connected to the radio also via the specific coaxial cable. Connector B of P20 sends out cables carrying signals to the speakers:pins 5 and 6 to the left front speakerspins 3 and 4 to the right front speakerspins 7 and 8 to the left rear speaker P30 pins 1 and 2 to the right speaker P31 Connector E of P20 has the cable connected to the CD player P75 coming out of it.

Engine compartment junction unit



B1A



B1B



B1C



B1C



B1D



B1E



B1E



B1E



B1X



multi-function components



5505A10


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400802-7040A37fuse box cover - r r2400542-5505A35BODY COMPUTER/MAIN JUNCTION UNIT - R.R.1. Release the retainers (1a), separate the junction unit (1b) fromthe body computer (1c). 2050745

5505A13


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Open the bonnet lid.1. Release the retainers (1a) and remove the cover (1b).2050746

5505A29


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400539-5505A13supplementary junctioncontrol unit in engine bay - r r1. Undo the bolts (1a) fixing the climate control system controlunit (1b).2050749

5505A32


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400802-7040A37fuse box cover - r r2400542-5505A35BODY COMPUTER/MAIN JUNCTION UNIT - R.R.1. Release the retainers (1a), separate the junction unit (1b) fromthe body computer (1c). 2050751

5505A35


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400802-7040A37fuse box cover - r r1. Disconnect the electrical connections (1a, 1b, 1c, 1d, 1e, 1f).2. Undo the bracket retaining bolt.3. Slightly move the bracket (3a) for the dashboard trim and undothe bolt (3b).4. Undo the other bolts securing the body computer/junction unit.5. Slightly move the body computer/junction unit assembly.6. Disconnect the electrical connections (6a, 6b, 6c).7. Recover the body computer/junction unit.2050752

5505A42



5505A43


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Disconnect electronic control unit electrical connections (1a),(1b), (1c).2. Undo the bolts.3. Recover the control unit.2050753

5505A46



5505A47


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Disconnect electronic control unit electrical connections (1a),(1b), (1c).2. Undo the bolts.3. Recover the control unit.2050754

5505A48



Junction unit under dashboard



B2A



B2A



B2B



B2C



B2D



B2D



B2E



B2G



B2H



Supplementary fuse box



B98



Passenger side dashboard earth



C20B



C20



Rear right earth



C31



C31



/Rear dashboard coupling



D20



D20



Rear coupling for /front door. driver's side



D30



D30



D30



D30



Front passenger door/ rear coupling.



D31



D31



D31



D31



Rear / rear door coupling left



D35



D35



D35



Rear/right door coupling right



D36



D36



D36



air bag system



5580C10


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Open the bonnet lid.Ensure the battery is disconnected.1. Undo the nut.2. Move the sensor (2a) and disconnect the electrical connection(2b).3. Recover the sensor.2050852

5580C12


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Place the steering wheel inthe centred position with the wheels straight.232400633-5580C18air bag module - r+r2400399-4110A11steering wheel - r+r for replacement or check forversions with air bag1. Undo the bolts.2. Remove the bottom trim (2a). To facilitate removal of the trim,move the steering column as appropriate after releasing the steeringcolumn position adjustment lever (2b). 2050853

5580C14


2323

5580C18


2323

5580C22


2323

5580C26


2323

5580C40


23

5580C44


2323

5580C50


2323

5580C52


2323

5580C86


23

Short circuiting coupling



D97A



D97C



D97C



D97F



D97G



D97I



D97J



D97M



D97N



D97P



D97Q



D97R



D97S



D97T



Ignition switch



H1A



H1B



ignition switch



5520A12


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400798-7040A26steering column trim- r+r2400642-5580E08aerial for alpha code - r r1. Disconnect the electrical connections (1a, 1b) from the ignitionswitch. 2. Drill out the headless bolts (2a). Remove the ignition switch(2b). 232050765

5520A14


23

Body computer



M1A



M1A



M1B



M1B



M1C



M1D



M1E



M1F



M1G



M1H



M1I



Steering wheel node junction unit



M93



Radio



P20A



P20B



P20C



P20D



P20E



passenger compartment trim



7040A07


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400807-7040A78radio compartment boxr r1. Undo the bolt.2. Remove shelf (2a) by releasing the interior retainers (2b).2051084

7040A10


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400839-7040L37gear lever plate - rr2400806-7040A65passenger compartment box lock , one , r r2400797-7040A19cushion padding - r r2400800-7040A28TRIM on gearbox control panel - R.R.2400802-7040A37fuse box cover - r r2400805-7040A56switch panel/support(push buttons)-r r2400801-7040A30Left instrument panel lower TRIM - R.R.2400803-7040A44facia lh side cover - r r2400804-7040A45facia rh side cover - r r2400635-5580C26LOCK BARREL KEY/SWITCH for deactivating passenger'AIR BAG - R.R.2400478-5010D56solar sensor - r r after checking electrical system2400796-7040A11control panel lid - r + r2400617-5560B10analogue control panel - r+r2400807-7040A78radio compartment box r r2400794-7040A07upper compartment on facia - r r2400620-5570T10car radio support - r+r - includes contact repairand supply circuit check2400512-5040D18air conditioner control unit - r r2400631-5580C12clock spring for air bag module on steering wheelr r2400399-4110A11steering wheel - r+r for replacement or check forversions with air bag2400798-7040A26steering column trim - r+r1. Working on both sides of the facia,open the side covers (1a)and then remove compartments (1b) by undoing the internal retainers(1c). 2051085

7040A11


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400478-5010D56solar sensor - r r afterchecking electrical system1. Undo the bolt.2. Remove the lip (2a) by undoing the retainers (2b).2051089

7040A19


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Undo the bolts.2. Remove the trim (2a) releasing the retainers (2b).2051090

7040A26


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Undo the bolts.2. Remove the bottom trim (2a). To facilitate trim removal, movethe steering column after releasing the steering column positionadjustment lever (2b). 3. Undo the bolts.4. Remove the top trim.2051091

7040A27



7040A28


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400839-7040L37gear lever plate - rr2400806-7040A65passenger compartment box lock , one , r r2400797-7040A19cushion padding - r r1. Undo the bolts.2. Remove the trim (2a) by undoing internal retainers (2b).2051092

7040A30


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400839-7040L37gear lever plate - rr2400806-7040A65passenger compartment box lock , one , r r2400797-7040A19cushion padding - r r2400800-7040A28TRIM on gearbox control panel - R.R.2400802-7040A37fuse box cover - r r2400805-7040A56switch panel/support(push buttons)-r r1. Release the steering wheel position adjustment control (1a).Raise the steering wheel and move it back.2. Unscrew the trim retaining bolts.3. Remove trim (3a) by undoing the internal retainers (3b).2051093

7040A37


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Undo the cover bolts.2. Remove the cover (2a) by undoing the retainers (2b).2051094

7040A44


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Remove the trim (1a) releasing the inner retainers (1b) usingthe special tool.2051095

7040A45


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Remove the trim (1a) releasing the inner retainers (1b) usingthe special tool.2051096

7040A56


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400802-7040A37fuse box cover - r r1. Undo the bolt.2. Move the trim (2a) by undoing the internal retainers (2b).3. Disconnect the electrical connections of the switch unit.4. Recover the panel with the switches.2051097

7040A65


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Undo the bolt.2. Remove closure (2a) by undoing internal retainers (2b).2051099

7040A78


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Extract compartment (1a) slightly after undoing retainers (1b).2. Disconnect the radio electrical connection.3. Disconnect the aerial lead connection.4. Recover the compartment2051100

7040A96


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Open the flap.2. Undo the bolts.3. Remove the door.2051101

7040A97



7040A98



Left rear speaker



P30



car radio and car telephone



5570T10


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400807-7040A78radio compartment boxr r2400794-7040A07upper compartment on facia - r r1. Undo the bolts.2. Remove the mounting.2050840

5570T27


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Open the tailgate.1. Disengage the central rear seat belt terminals (1b) from theirseating (1a).2. Undo the bolts.3. Remove the trim (3a), disengaging it from the terminals (1b).2050841

5570T66


23

5570T90


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400682-7005E12corner cover of onefront side door, lh or rh r r2400686-7005M14ELECTRIC WINDOWS, REAR VIEW MIRRORS and CENTRAL LOCKINGSWITCH unit on driver's front door - R.R.2400681-7005E08front side door interior panel r r1. Disconnect the loudspeaker connector.2. Drill out the rivets.3. Recover the speaker.4. Use a vacuum cleaner to remove the drillings from the door boxsection.2050847

5570T92


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400803-7040A44facia lh side cover- r r (for left pillar) 2400804-7040A45facia rh side cover - r r (forright pillar) 2400932-7065C34l/h or r/h sun blind (one) - r+r (rightand left) 2400816-7040E10front courtesy light - r+r2400821-7040H08oddment shelf on roof trim r r2400829-7040H40Front. PILLAR COVER for third SIDE WINDOW (one),left or right - R.R.1. Release the retainers (1a) and take out the tweeter (1b).2. If necessary, undo the bolts (2a) and remove the tweeter support(2b). 2050848

5570T96


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400730-7010E10rear side door innerpanel - r r or replace1. Disconnect the loudspeaker connector.2. Drill out the rivets.3. Recover the speaker.4. Use a vacuum cleaner to remove the drillings from the door boxsection.2050849

Right rear speaker



P31



Speaker in driver's .front door



P35



P35



Speaker in front passenger door



P36



P36



Driver's front tweeter speaker



P45



roof panel lining



7040H08


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400932-7065C34l/h or r/h sun blind(one) - r+r (right and left) 2400816-7040E10front courtesy light - r+r1. Undo the bolts.Only if the car is equipped with a sunroof.Disconnect the electrical connection.2. Recover the shelf assembly.2051112

7040H10


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400803-7040A44facia lh side cover- r r2400804-7040A45facia rh side cover - r r2400932-7065C34l/h or r/h sun blind (one) - r+r (rightand left) 2400816-7040E10front courtesy light - r+r2400821-7040H08oddment shelf on roof trim r r2400829-7040H40Front. PILLAR COVER for third SIDE WINDOW (one),left or right - R.R. (right and left) 2400827-7040H36central trim lower element - r r (rightand left) 2400828-7040H38central pillar upper element - r r (rightand left) 2400832-7040H66LEFT REAR SIDE TRIM, WITH REAR PARCEL SHELF SUPPORT- R.R .2400833-7040H67RIGHT REAR SIDE TRIM, WITH REAR PARCEL SHELF SUPPORT- R.R .2400830-7040H42rear pillar trim - r r (rightand left) 2400817-7040E12central courtesy light - r+r2400931-7065C30interior l/h or r/h grab handle (one) - r+r (all) 1. Release ends (1b) of the central rear seat belt from seat (1a).2. Undo the bolts.3. Remove panel (3a) by releasing from ends (1b).2051113

7040H14


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400817-7040E12central courtesy light- r+r (right and left) 1. Undo the bolts.2. Remove the central trim.2051115

7040H15


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400817-7040E12central courtesy light- r+r1. Open the glove compartments.2. Undo the bolts.3. Remove the console.2051116

7040H16


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400803-7040A44facia lh side cover- r r2400804-7040A45facia rh side cover - r r2400932-7065C34l/h or r/h sun blind (one) - r+r (rightand left) 2400816-7040E10front courtesy light - r+r2400821-7040H08oddment shelf on roof trim r r2400829-7040H40Front. PILLAR COVER for third SIDE WINDOW (one),left or right - R.R. (right and left) 2400827-7040H36central trim lower element - r r (rightand left) 2400828-7040H38central pillar upper element - r r (rightand left) 2400832-7040H66LEFT REAR SIDE TRIM, WITH REAR PARCEL SHELF SUPPORT- R.R .2400833-7040H67RIGHT REAR SIDE TRIM, WITH REAR PARCEL SHELF SUPPORT- R.R .2400830-7040H42rear pillar trim - r r (rightand left) 2400817-7040E12central courtesy light - r+r (rightand left) 2400931-7065C30interior l/h or r/h grab handle (one) - r+r (all) 2400823-7040H14TRIM for centre roof support - R.R.1. Release ends (1b) of the central rear seat belt from housing1a).2. Undo the bolts.3. Remove panel (3a) by releasing from ends (1b).2051117

7040H32


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400932-7065C34l/h or r/h sun blind(one) - r+r (right and left) 2400816-7040E10front courtesy light - r+r2400821-7040H08oddment shelf on roof trim r r2400781-7030B64sun-roof control switch - r+r1. Release the retaining clips (1a) and remove panel (1b).2051119

7040H36


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Move the front seat fully forward.1. Use the special tool to remove trim (1a) by undoing internalretainers (1b) and retaining detent (1c). 2051120

7040H38


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400827-7040H36central trim lower element- r r1. Remove the grip.2. Remove the embellishment.3. Unscrew the seat belt reel mechanism nut.4. Undo the bolt.5. Use the special tool to remove trim (5a) by releasing it fromthe interior retainers.2051121

7040H40


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400803-7040A44facia lh side cover- r r (for left pillar) 2400804-7040A45facia rh side cover - r r (forright pillar) 2400932-7065C34l/h or r/h sun blind (one) - r+r (rightand left) 2400816-7040E10front courtesy light - r+r2400821-7040H08oddment shelf on roof trim r r1. Detach the door housing seal by the trim.2. Undo the bolt.3. Move the trim (3a) slightly releasing the inner retainers (3b).4. Disconnect the electrical connection:5. Recover the trim complete with tweeter2051122

7040H42


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400832-7040H66LEFT REAR SIDE TRIM,WITH REAR PARCEL SHELF SUPPORT - R.R .2400833-7040H67RIGHT REAR SIDE TRIM, WITH REAR PARCEL SHELF SUPPORT- R.R . (alternatively) Tilt the rear seat forward.1. Remove the cover.2. Undo bolt (2a) and move end (2b) of the rear seat belt.2051123

7040H50


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400832-7040H66LEFT REAR SIDE TRIM,WITH REAR PARCEL SHELF SUPPORT - R.R .2400833-7040H67RIGHT REAR SIDE TRIM, WITH REAR PARCEL SHELF SUPPORT- R.R . (alternatively) 1. Undo the bolt.2. Remove the trim (2a) by undoing retaining clip (2b) with thethe appropriate tool.2051125

7040H66


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Tilt and rear seat backrestforward.2400939-7065C86boot/load platform power unit housing - r r1. Undo the bolts.2. Remove trim (2a) after having released the inner retainers (2b)using the special tool.2051126

7040H67


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Tilt the rear seat backrestforwards.2400819-7040G30boot light bulb holder - r r1. Undo the bolts.2. Remove the trim (2a) after having released the inner retainers(2b) using the special tool.2051127

Front passenger side tweeter speaker



P46



Rear left tweeter speaker



P47



Rear right tweeter speaker



P48



Radio amplifier



P70



CD multi-player



P75


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