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Fiat IDEA 1.3 JTD 16v – BRAKE LIGHTS – – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION

Fiat IDEA 1.3 JTD 16v   – BRAKE LIGHTS –  – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION https://portal-diagnostov.com/license.html
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Wiring diagram
BRAKE LIGHTS - Wiring diagram Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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COMPONENTS
Component codeNameAssembly reference
B1Engine compartment junction unit5505A
B2Junction unit under dashboard5505A
C20Passenger side dashboard earth-
C30Left rear earth-
C31Rear right earth-
E50Instrument panel5560B
F30Rear left light cluster5540A
F31Rear right light cluster5540A
F40Additional ("third brake light")5550D
I30Brake pedal switch5550D
M1Body computer5505A
Location of components
BRAKE LIGHTS - Location of components Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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COMPONENTS
Component codeNameAssembly reference
B1Engine compartment junction unit5505A
B2Junction unit under dashboard5505A
C20Passenger side dashboard earth-
C30Left rear earth-
C31Rear right earth-
E50Instrument panel5560B
F30Rear left light cluster5540A
F31Rear right light cluster5540A
F40Additional ("third brake light")5550D
I30Brake pedal switch5550D
M1Body computer5505A
DescriptionThe brake lights are located at the rear in the side lights and in the central third brake light and consist of 5 separate bulbs.These are operated whenever the brake pedal is pressed, by means of a switch on the pedal itself.23the switch fitted on the pedal assembly consists of two contacts which supply two signals: the first which is the 'N.A.' type recognizes the position of the brake pedal when it differs from the rest position, i.e. pedal pressed; the second, which is the 'N.C.' type, recognizes the brake pedal in the rest position. The lights are switched on by the N.A. contact (pedal pressed). The 'N.A.' switch information is sent, in particular to the engine management control unit and the ABS control unit. 2399341SeeE5030PETROL ENGINE ELECTRONIC MANAGEMENT , 2399345SeeE5050DIESEL ENGINES ELECTRONIC MANAGEMENT , 2399383SeeE7020ABS . The control function is activated by the go ahead signals from the key in the ON position (INT) and the contact for the above mentioned switch.The correct operation of the side lights is controlled by the brake lights 'check' function: the following are checked:0pen circuit (bulb missing or wiring broken)short circuit to earth (bulb short circuit or wiring short circuit to earth)short circuit to Vbatt (wiring short circuit to Vbatt)The continuity of the fuse protecting the switch on the brake pedal is also checked.If one of the situations described above is detected, the Body Computer notifies the CAN of the failure state: the special 'lights failure' warning light in the instrument panel comes on and, at the same time, the information is shown on the display.23the centre third brake light is operated directly by the switch on the pedal and is not subjected to a check.
Functional description The supply for the switch I30 is controlled by the ignition (INT) from the line for fuse F37 of the underdashboard control unit B2 : when the brake pedal is pressed, the switch closes and sends the 'N.A.' signal to the Body Computer M1 , pin 2 of connector F. The Body Computer M1 controls the supply for the brake lights in the light clusters F30 (left) F31 (right) from pins 32 and 33 of connector E. The Body Computer M1 is connected, via the CAN line, to the instrument panel E50 to manage the failure warning light or the fuse if there is a failure in the circuit. The switch I30 directly controls the centre brake light F40 via the underdashboard control unit B2, pin 5 of connector D with no control logic.

Engine compartment junction unit



B1A



B1A - Engine compartment junction               unit ( Connectors ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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B1B



B1B - Engine compartment junction               unit ( Connectors ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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B1C



B1C - Engine compartment junction               unit ( Connectors ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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B1C



B1C - Engine compartment junction               unit ( Connectors ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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B1D



B1D - Engine compartment junction               unit ( Connectors ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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B1E



B1E - Engine compartment junction               unit ( CROSSMEMBER ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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B1E



B1E - Engine compartment junction               unit ( CROSSMEMBER ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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B1E



B1E - Engine compartment junction               unit ( CROSSMEMBER ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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B1X



B1X - Engine compartment junction               unit ( BATTERY POSITIVE ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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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 - Junction unit under dashboard ( Connectors ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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B2A



B2A - Junction unit under dashboard ( Connectors ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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B2B



B2B - Junction unit under dashboard ( REAR ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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B2C



B2C - Junction unit under dashboard ( Connectors ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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B2D



B2D - Junction unit under dashboard ( REAR ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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B2D



B2D - Junction unit under dashboard ( REAR ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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B2E



B2E - Junction unit under dashboard Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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B2G



B2G - Junction unit under dashboard ( FACIA ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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B2H



B2H - Junction unit under dashboard ( FACIA ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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Passenger side dashboard earth



C20B



C20B - Passenger side dashboard               earth ( REAR ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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C20



C20 - Passenger side dashboard               earth ( FACIA ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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Rear right earth



C31



C31 - Rear right earth ( REAR ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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C31



C31 - Rear right earth ( REAR ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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Instrument panel



E50A



E50A - Instrument panel ( FACIA ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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E50B



E50B - Instrument panel ( FACIA ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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analogue control panel



5560B10


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400478-5010D56solar sensor - r r afterchecking electrical system2400796-7040A11control panel lid - r + r1. Undo the bolts.2. Move the instrument panel slightly.2050838

Rear left light cluster



F30



F30 - Rear left light cluster ( REAR ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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lighting



5540A44


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Open the tailgate.1. Remove the flap (1a) releasing the retainers (1b) and then (1c). 2. Disconnect the electrical connection.3. Unscrew the nuts.4. Remove the light cluster from the outside.2050801

5540A50


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400584-5540A44l/h or r/h tail light(one) - r+r1. Release retainers (1a) and raise bulb holder (1b) with seal.2050802

5540A94


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Release retainer (1a) and then (1b). Recover the lens protection(1c).2. Remove bulb (2a) by releasing side retainers (2b).23 The number plate light bulb holderis an integral part of the outer handle; to remove it 2400752-7015B30exterior handle or blocksupport - r+r with panel/protection removed2050804

Rear right light cluster



F31



F31 - Rear right light cluster ( REAR ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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Additional ("third brake light")



F40



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brake and reversing lights



5550D10


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the negative battery terminal (-). Proceed with removal 2400839-7040L37gear lever plate - rr . Proceed with removal 2400806-7040A65passenger compartmentbox lock , one , r r . Proceed with removal 2400797-7040A19cushion padding - r r . Proceed with removal 2400800-7040A28TRIM on gearbox controlpanel - R.R. . Proceed with removal 2400801-7040A30Left instrument panellower TRIM - R.R. . 1. Undo the bolts (1a) and remove the bottom reinforcement for theunderdashboard crossmember (1b). 2050829

5550D16


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Open the tailgate.1. Undo the bolts.2. Move the third brake light mounting.2050831

5550D17


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Open the tailgate.1. Undo the bolts.2. Move the third brake light mounting.2050834

5550D18


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400395-3380A44handbrake/linkage protection- r+r1. Move the switch after releasing the retainer.2. Disconnect the electrical connection.3. Recover the switch.2050836

5550D22


<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the negative battery terminal (-). 1. Disconnect the electrical connection from the reversing lightsswitch.2. Undo and remove the reversing lights switch.2050837

Brake pedal switch



I30



I30 - Brake pedal switch ( Connectors ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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I30



I30 - Brake pedal switch ( Connectors ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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Body computer



M1A



M1A - Body computer ( FRONT ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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M1A



M1A - Body computer ( FRONT ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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M1B



M1B - Body computer ( FRONT ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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M1B



M1B - Body computer ( FRONT ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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M1C



M1C - Body computer Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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M1D



M1D - Body computer ( REAR ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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M1E



M1E - Body computer ( REAR ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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M1F



M1F - Body computer Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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M1G



M1G - Body computer ( FACIA ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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M1H



M1H - Body computer ( FACIA ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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M1I



M1I - Body computer ( FACIA ) Fiat IDEA 1.3 JTD 16v  https://portal-diagnostov.com/license.html
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