FIAT 500 C - FC Connect
Contents
1. 1 Fiat 500 C 585 2009 Fiat Group Automobiles S p A All rights reserved The circulation and reproduction of all or part of this guide by any means is prohibited Material processing cannot involve special liability for involuntary errors or omissions The information in this guide is subject to continuous updating Fiat Group Automobiles S p A accepts no responsibility for consequences arising from the use of out of date information This publication is for training purposes only For up to date and comprehensive technical information for service purposes refer to the service manual and service information regarding the vehicle model in question 2 Fiat 500 C 585 luilzgjtm 5 SOFT TOP cect pee te M 6 LOD Tide NITET T E EET 6 Ct 9 uo M H EH aioe 10 GONE GN GS 11 ENGT TO Mee T 12 Rear window movement kinematic components 13 Roar SOONG akanang ning bea aaa agra eaaa ia aa ia aan aaa angan aaa aning aapa 14 Front SpOG T aaa aaa aaa aka ka ageage aaa aaa aa ka aa aaa baana a aa gana aa kaa a aaa a aaa aana al aibe 15 Ink M AN TA aa SAN AAN BA NR E2. 24 Fiat 500 C 585 Emergency manoeuvre If the control buttons fail the soft top can be moved manually proceeding as described below 1 take the supplied wrench A placed in the luggage compartment with the tool box or the Fix amp Go 2 Fit the wrench in the suitable housing inside the luggage compartment under the rear shelf as shown in the figure 3 Turn in clockwise direction to open the soft top and counter clockwise to close it Soft top initialisation As a result of an emergency manoeuvre the soft top could fail to operate automatically The initialisation procedure must be carried out This can be made by Examiner in BCM diagnosis mode The initialisation procedure is guided by the diagnosis instrument informing the operator about the operations to be made on interior movement buttons At the end of the operations if the initialisation procedure was positive the soft top carries out the following cycle automatically 1 complete opening 2 complete closing Opening up to spoiler position In case of battery disconnection the soft top system does not lose its operating automatic movements 295 Fiat 500 C 585 Stop amp Start and electrical soft top interaction If the Stop amp Start function optional is implemented in addition to the electrical soft top system on the Fiat 500 C these two systems must coexist in all those situations where both of them need to operate First of all the electro
3. BE AAN A A NE EA La AN E EN TAN Tah RN NA 16 MOVEMENT LOGIC n gaga asian jani aka aan aaa aaa 17 Movement through DUNGONS TAA T AKEN ANA BAKA AE A kan E a Aa NE 17 Movement by remote control Comfort opening saa aaa aaa ea anana anana n anana aana anana aana aana nnns 24 Soft top movement and vehicle speed aana a eaaa eaaa aaa a anana aana aana anana anna nennen nean anana nnn nnn nnns 24 Soft top movement and temperature aas aa aee a eaaa anana anaa aana aana anana nennen ann 24 Emergency MANO CUWIC NETTE TE BEA PARAN TE DANG EA pana GARA A aa DEE Pa A kaa a 25 SON TOP NNAS AHON MERC EI EE m 25 Stop amp Start and electrical soft top 26 Tailgate soft top interaction ollseseeeseseseseeeeee nennen nennen nnne nn nnn e nnns ann nsn aan nnns 26 Soft top management when the motor is locked 26 Soft top and climate control system interaction cccccceeeeccecceeeeeeeeecaeeeeeeeeeeeeeeeeessaeaeeeessaaeeeeeeesaaeeeess 27 Heated rear window soft top interaction asas eaaa aee anana aana anaa anana anana nennen nennen nnn nnn 27 ELECTRICAL SYO c PR 28 SPAR
4. The Body Computer receives the release request of the tailgate from the button on the handle or by the button on the remote control For every release request BCM must be informed about the soft top current position if the soft top is in the spoiler position stopping in any intermediate position of the horizontal section or if it is fully closed the BCM can release the tailgate lock To guarantee the tailgate correct opening when the soft top is fully open or during its vertical movement opening or closing the BCM asks the RCU through LIN line to bring the soft top next to the spoiler position When the spoiler position is reached the releases the tailgate lock If the tailgate is open and at the same time the soft top opening is required the opening movement is not performed Under these conditions only the soft top closing movement is allowed If the tailgate lock release request is controlled while the soft top is moving in the horizontal section the movement stops immediately without reaching safety positions and the BCM can release the lock only after being informed by RCU that the soft top movement has been actually interrupted When the RCU interrupts the soft top movement the same can restart only after pressing the movement interior buttons Soft top management when the motor is locked During the soft top movement the motor could suddenly lock The motor can be locked mechanically seizing or obstacles or t
5. e Cross member stabilising function improved by the anti roll bar Excellent comfort thanks to the improved vertical flexibility e Excellent handling thanks to the higher stabilising action due to the anti roll bar 38 Fiat 500 C S amp S e Reduced weight e Pre assembly of suspension before installing it on the vehicle There are two rear axle versions depending on the vehicle version The following illustrations show that the structure of the rear axle is similar for both versions the difference is the presence of Drum brakes for the 1 2 8V petrol engine and 1 3 Multijet versions Full disc brakes for the 1 4 16V petrol engine version 1 2 8V petrol 1 3 Multijet version 1 4 16V petrol version 39 Fiat 500 C 585 The torsion beam suspension is secured to the body with pressed steel mounting brackets each bracket is secured to the body by three screws Noncstructural dual tube shock absorbers with horizontal lower bushing y axis and horizontal upper bushing for fastening to the rear rail The coil springs are lodged between the lower plate on the axle and the upper mount welded onto the side rail there is a rubber element between the upper mount and the spring The end stop buffers are made from Cellasto for this reason because of their shape they are secured to a mount welded onto the rear rail that also serves as the upper support surface for the spring 40 Fiat 500 C 585
6. fully closed positions are stored by the ECU during learning initialisation the first time by Fiat Auto Poland factory The RCU depending on the total stroke and on the information sent by the sensor calculates intermediate positions including the spoiler position Operating diagram Opening switch Closing switch INPUT OUTPUT FeedBack INPUT OUTPUT 229 Fiat 500 C 585 The BCM body computer input data are AutoStart concerning the S amp S function intervention Luggage compartment lock release information coming from the button on the tailgate handle or from the remote control Comfort Opening from the lock release button of the remote control Vehicle speed Outside temperature Key status key on off The information sent by the Body Computer output concerns the soft top position All information is sent through B CAN network and is used by the climate control node NCL to manage the climate control system when the soft top is open The Body Computer node BCM transmits and receives data to from the soft top control unit RCU through a LIN line BCM sends the following information to the RCU control unit Intervention of the S amp S function Autostart tailgate release request tailgate status vehicle speed outside temperature Comfort opening control key status key on off The Body Computer BCM receives from the RCU feedback signals to know the true position of the roof the cor
7. special Warm Grey peculiar of sports supercars Not last thanks to the innovative sliding soft top and the style concept keeping the vehicle sides the Fiat 500 C can be enjoyed in any season of the year In a word all these peculiar features make this new vehicle one of the most successful examples of today s convertibles available in the city car segment Thus the 500 C confirms Fiat unquestionable leadership in this segment thanks to its continuous innovations it always plays as a protagonist As a matter of fact this vehicle creates new standards as for comfort and safety technique and outfit without ever giving up to the unique Italian style absolutely unrivalled A convertible offering great emotions is born with top driving pleasure and matching a fascinating line with the performance of environmental friendly highly flexible engines 20 Fiat 500 C S amp S SOFT TOP STRUCTURE The Fiat 500 C soft top system is formed by an electrical and a mechanical part The electrical part is used for management and control it is mainly formed by an ECU a motor with integral position sensor and two movement buttons Soft top movement buttons The soft top mechanical part is mainly formed by quo Qs 0 1 soft top frame stuck and screwed on the vehicle chassis 2 guides integral with the frame by rivets Bowden cables and control unit operated by the motor 6 centre ribs three out of which directly linked to the p
8. E PARIS nci aana nai a anaa adab aka a a toa ce de e com 35 SUSPENSION Eoi cesse duced o CoL 38 mL T 38 genie MC M T 38 Rear SUSPENSION EE 38 3 Fiat 500 C S amp S 4 Fiat 500 C 585 BRIEFING Expressing a free and emotional vehicle the original convertible version pays tribute to the open top discovery vehicle of 1957 while at the same time it offers vanguard solutions as for mechanics engines and comfort on board All this is aligned with the most authentic Fiat tradition that democratizes the access to contents and technologies never offered before in this vehicle segment Thanks to its innovating soft top a true window to the sky the new 500 C has the same dimensions of the basic model it is 3 55 m long 1 65 m wide and 1 49 m high and shares all the three engine types turbodiesel 1 3 Multijet 75 HP engine with 5 gear gearbox and two petrol 1 2 69 HP and 1 4 100 HP engines both with gearbox or Dualogic robotized transmission Each one has different qualities the three engines are featured by their generousness their lively behaviour and also by their high performance and sophisticated technology Among standard qualities instead great reliability and respect for the environment To confirm Fiat Automobi
9. ads sliding inside the guides 1 rear rib reinforcement at the base of frame cover canvas roof interior trim rear window movement kinematic components rear spoiler interior seal front spoiler Soft top frame Soft top frame 6 Fiat 500 C 585 The soft top frame is fastened in 17 points to the body 2 screws at the front 6 nuts in the area next to the spoiler position and 9 screws at the back The whole contour of the soft top frame is sealed Front left side area Front right side area the centering element is visible the centering element is visible A gt NY A Lu n PE 3 Rear spoiler position area left side Rear spoiler position area right side Fiat 500 C 585 Vehicle interior side area left side Vehicle interior side area right side Vehicle interior rear area Vehicle interior rear area next to the control unit next to the motor Vehicle exterior rear area Gs Fiat 500 C 585 Guides On the soft top frame side parts the two guides are fastened by rivets the movement pads are located in these guides Guide Bowden cable and control unit Control unit The Bowden cables slide inside the guides pulled by a mechanism including a toothed reel operated by a motor d Fiat 500 C 585 Ribs The ribs on the horizontal section are 7 1 front rib and 6 centre ribs T
10. attery battery 34 Fiat 500 C 585 SPARE PARTS The following table lists all the components and the kits to be supplied as spare parts KIT No DESCRIPTION REMARKS IMAGE Include fasteners glue EXTERIOR CANVAS Stitching etc ROOF INTERIOR Include fasteners glue TRIM stitching etc LH REAR WINDOW KINEMATIC COMPONENT LEVERS Include fasteners RH REAR WINDOW KINEMATIC Include fasteners COMPONENT LEVERS 3 bis SPOILER Include fasteners THIRD BRAKE LIGHT Include fasteners CENTRE RIBS Single kit with no 6 ribs LEFT GUIDE Include fasteners 35 Fiat 500 C S amp S 7 bis i i i i NO RIGHT GUIDE REAR RIB REINFORCEMENT PLASTIC COVERS COMPLETE WIND DEFLECTOR WIRING HARNESS CONTROL UNIT MOTOR DRIVE UNIT Include fasteners Single kit with no 4 covers front rear LH RH Include fasteners Include fasteners Exclude Bowden cables 36 Fiat 500 C 585 17 bis DRIVE UNIT BOWDEN CABLE LH MECHANISM ASSEMBLY RH MECHANISM ASSEMBLY Managed as a single piece Quantity 2 on vehicle Include LH strap Include RH strap Fiat 500 C 585 SUSPENSION STRUCTURE Suspensions The suspensions allow the vehicle to undertake any type of route without transmitting the bumps from the wheels into the passenger compartment reducing side oscillation rolling and longitudina
11. elease The roof opening and closing can be made according to two modes e Manual if the opening closing buttons are pressed for an activation time Ta between 50 ms and 300 ms 50 ms Ta 300 ms short control Releasing the button the roof movement stops In manual mode the roof can be moved only in the horizontal area e Automatic if the opening closing buttons are pressed for an activation time Ta over 300 ms Ta 300 ms long control The automatic movement concerns the soft top roof horizontal area and the soft top vertical area here the movement can only be automatic Here below sequentially the operating logics for the roof automatic movement during opening and closing steps are described Movement through buttons Starting condition fully closed roof Pressing the opening button once the roof opens automatically until reaching the full horizontal opening position spoiler position Complete horizontal opening position spoiler position 17 Fiat 500 C 585 Pressing the opening button once the roof starts its movement towards the full horizontal opening position spoiler position If before reaching the spoiler position the button opening or closing is pressed again the roof stops in an intermediate position in the horizontal section Intermediate closing position on horizontal section From the intermediate horizontal opening position pressing the opening button once the roof conti
12. he front rib the second the fourth and the sixth ribs are linked to the pads they are the so called movement ribs The first the third and the fifth ribs are not linked to the pads and mainly serve to support the roof These ribs are moved by the movement ribs through special brackets edges they are linked to The movement ribs are operated by front pads linked to the front rib sliding in the side guides on their turn operated by Bowden cables pulled by the motor The sixth movement rib is next to the rear spoiler During horizontal movement it stops and is fastened by two hooks one on the left and one on the right side of the soft top frame When the roof starts its vertical movement the hooks release the pads of the sixth rib from the soft top frame to make it move Seventh rib pad hooks right side Centre ribs Pads 10 Fiat 500 C S amp S Cover canvas The cover canvas through the front rib is fastened to the pads by four screws two on the right and two on the left side Canvas fastening screws to the first front rib on the left side At the back of the frame a rib fastens the soft top cover canvas Unlike the front rib and the six centre ribs the rear rib is always stopped during the roof opening and closing movement It only fastens the soft top cover canvas at the back The rear rib is screwed to the soft top frame and contains a reinforcement bar Heinforcement bar Hear r
13. hermally The RCU control unit involves some strategies to manage this type of situation Motor locked in the horizontal section If during the movement in the horizontal section the soft top stops as a result of the motor locking the opening and closing controls from the interior buttons are prevented for 30 seconds The same applies to the opening movement operated by the remote control 26 Fiat 500 C 585 Motor locked in the vertical section If during the closing movement in the vertical section the soft top stops as a result of the motor locking the movement is reversed until reaching the fully open position The closing control by the interior button is prevented for 30 seconds If during the opening movement in the vertical section the soft top stops as a result of the motor locking the movement is reversed until reaching the spoiler position The opening and closing movements from interior buttons are prevented for 30 seconds Soft top and climate control system interaction The Body Computer BCM sends through a B CAN network all information concerning the roof position All information is used by the climate control system node NCL to manage the climate inside the compartment in the best way If the soft top is open the climate control system node manages the fans to preserve their operation In case of a high difference outside temperature and the temperature set by the driver on the climate control system node with o
14. ib 11 Fiat 500 C S amp S Interior trim Ribs and guides are coated by an interior trim inside the car Interior trim The interior trim is fastened to the ribs and is operated during movement 12 Fiat 500 C 585 Rear window movement kinematic components The rear window is made of glass and during the soft top vertical movement it must carry out a slight transfer and following rotation movement so that the exterior cover canvas can be wound up in soft top total opening position Left side rear window movement kinematic components Detail A of left side kinematic components Detail B of the left side kinematic components The slight translation and following rotation movement is achieved by a kinematic movement formed by a set of levers These kinematic components are operated by the movement of pads 1 as shown in the illustration of detail B of the kinematic components The illustrations show the kinematic component details on the soft top left side on the right side the kinematic components are symmetrical 213 Fiat 500 C 585 Rear spoiler A spoiler over the rear window supports the third brake light as well WA Wa Rear spoiler The spoiler is fastened by four screws on a cross member between the rear window and the sixth horizontal rib The cross member is linked to the rear window movement kinematic component by four screws being the rear window linked to the sixth move
15. l oscillation pitching of the body The 500 C version has new variants vs the basic vehicle Front suspension Independent McPherson type front suspension with spheroid cast iron track control arms secured to an auxiliary cross member Offset coil springs and double acting telescopic hydraulic shock absorbers Anti roll torsion bar opheroid cast iron track control arms with new bushes fitted at the back of the vertical axle to improve the absorption of vibrations and road holding when cornering Side load type coil springs that allow better reduction of stem tangential forces with resulting improved absorption of slight unevenness in the road surface Dual acting telescopic hydraulic shock absorbers Upper shock absorber mounting with improved axial rigidity to improve comfort The wheel strut has an increased transverse camber angle to improve camber angle when cornering wheel perpendicular to the ground Rear suspension The torsion beam rear suspension semi independent wheels has an anti roll bar coming from 500 Abarth version Rear suspension of the basic model has no anti roll bar Coil springs and double acting telescopic hydraulic shock absorbers Front and rear wheel hubs on versions equipped with ABS have a special bearing for active sensors which replaces the toothed wheel on previous systems The advantages of this solution are e Similar kinematic behaviour to independent wheels with associated functional advantages
16. les commitment for environmental protection and sustainable mobility the new 500 C includes as optional the innovative Stop amp Start system the device for engine temporary stopping and its following restarting When the vehicle stops placing the gearshifting lever in neutral and releasing the clutch the engine switches off to restart you only need to press the clutch pedal in case of gearbox Created by Fiat Centro Stile and produced in the factory of Tichy Poland the vehicle was designed with an open source approach that is the addition of new functions on a successful already marketed product Fiat 500 C indeed inherits all the winning features of the basic vehicle such as the top safety comfort in the compartment with 4 seats for adults and a luggage compartment that does not give up to precious cm of capacity Among others the luggage compartment thanks to clever system of parallelogram hinges gives an easier access even when the soft top is fully open True design object the soft top of Fiat 500 C is featured by the special kinematic movements of the electrical control and by the use of highly refined and cared for finishing technical solutions from the glass rear window to the third brake light inside the soft top itself The original soft top comes in three colours ivory red and black and shall be matched to many body shades with two special ones created especially for this new vehicle a shining Pearly Red and a
17. ment rib the spoiler can follow the soft top vertical movement Screws securing the spoiler to the cross member 14 Fiat 500 C 585 Front spoiler A spoiler is located in the front part of the soft top it can be lifted to improve aerodynamic comfort inside the compartment In the centre of the spoiler a retaining tooth makes it integral to the soft top frame To lift the spoiler just move the retaining tooth to the right passenger s side as shown in the picture Front spoiler retaining tooth 19 Fiat 500 C 585 Spoiler canvas The front spoiler lifts a canvas usually folded when the spoiler is closed The canvas is linked to the spoiler at the top and to the soft top frame at the bottom by rivets The spoiler must be raised when the roof horizontal section is open at speeds over 60 km h When the roof is fully open the spoiler should be lowered to prevent wind noises from entering the compartment Interior seal Next to the area between soft top frame and body a seal covers the whole contour excluding the soft top frame rear part Rubber seal The seal is in butyl based rubber This special type of rubber features a thick molecular structure highly resistant to gas flow this rubber has also a high breaking load 16 5 Fiat 500 C 585 MOVEMENT LOGICS The roof movement can be achieved in two ways 1 Movement through interior buttons 2 Movement by remote control for door locking r
18. ncerns the opening or closing button activation time If either button is pressed locked for a time longer than 60 seconds the RCU prevents the soft top movement until the locked button is released H BRIDGE belongs to the motor overvoltage protection system It is mainly an additional circuit inside the motor that can take up the overvoltage and reduce motor overheating No communication on LIN line If the communication on LIN line disappears the soft top cannot be moved anymore through the interior buttons and the remote control Under such conditions the RCU cannot be woken up by the interior buttons as the key status key on off is sent only by LIN If the soft top is being moved and the LIN line stops working thus stops communicating the soft top locks and it cannot be closed anymore The closing is possible only through emergency manoeuvres 33 Fiat 500 C 585 Failure code list DTC RCU Roof movement control unit Incorrect performance The DTC is stored if the faulty or operations BCM receives from the RCU one of the following signals Roof position failure Timeout failure Roof opening switch failure Roof closing switch failure BRIDGE failure Motor failure Locked motor 00207 faulty on LIN line LIN line message missing missing RCU to BCM Roof movement control module irregular from RCU LIN2 failure short circuit to GND Contact to GND short circuit b
19. nic control unit for the soft top system receives all information on the S amp S function status from the BCM through a LIN dedicated line The critical condition for the soft top system occurs when the request of engine stop or a restarting request of the engine occurs simultaneously with a soft top movement Due to this critical condition some peculiar situations must be defined engine stop request during the roof movement If the engine stops during the roof movement the latter can continue moving without jeopardising its movement performance Roof movement request during the stopping time of the engine If the roof motor according to a movement request by the driver asks for a high current value due to possible interference the engine could be restarted and the roof movement is delayed until the engine completes the starting stage Under such conditions if one gear is engaged the engine cannot be restarted and the roof is not moved Instead if the motor can be operated with standard values of the uptake current the roof movement is made without necessarily restarting the engine all this clearly depends on the battery charge value Engine restarting request during the movement If the engine restarting request occurs during the roof movement the RCU control unit stops the movement and the engine can start When the engine completes the starting stage the roof movement restarts and is completed Tailgate soft top interaction
20. ning is prevented pressing the release button the roof moves automatically and only when it reaches the spoiler position the tailgate lock is released From the fully open position pressing the closing button the roof closes towards the spoiler position If during the movement between fully open to the spoiler position the button is pressed again the roof stops and the movement is reversed going back to the fully open position 21 Fiat 500 C S amp S Y Roof in full opening position wane TA WORK Roof in closing process a XJ oy Roof in closing and movement reversal process Th WANI 22 Fiat 500 C S amp S From roof in spoiler position to roof fully closed From the spoiler position pressing the closing key once the roof starts closing automatically up to about 25 cm from the fully closed position In the last 25 cm closing must be completed manually keeping the closing button pressed Considering that the anti pinch function is not included this operation logic has been designed to preserve the safety of the vehicle passengers that could accidentally be projecting from the vehicle itself during closing AUTOMATIC CLOSING 25 CM MANUAL CLOSING If during automatic horizontal closing the closing opening button is pressed the roof movement stops in an intermediate position Pressing the closing button again the roof continues its automatic clo
21. ns In the following table the signals exchanged between BCM and RCU are listed concerning the diagnosis strategies and the possible recovery strategies Diagnosis signals LII strategies Sigra is invalid Outside temperature status is set when the re e failure ne sensor sends an invalid value to the BCM Roof position failure It is set when the RCU sends The roof is not moved we incorrect roof position Time out failure is set when the activation Soft movement function BEI switch is pressed for over 60 prevented until the button is seconds released Roof opening switch failure Malfunctioning opening interior The roof cannot be moved in button opening Roof closing switch failure Malfunctioning closing interior The roof cannot be moved in button opening H_Bridge failure It is generated as a result of The relevant error is reset once absorption overcurrents over the system cools down heating short circuit to Vbatt or current decreases GND Locked motor system It is set when the motor locks Prevention for 30 seconds and suddenly new control to be sent Motor system failure Motor in short circuit Once the short circuit has been overheating removed or the system has cooled down enter the control again Battery initialisation under It is set during the initialisation Repeat the initialisation voltage procedure and a battery voltage procedure decrease is detected TIMe OUT failure co
22. nues the automatic movement until reaching the full horizontal opening position spoiler position Complete opening position spoiler position Fiat 500 C 585 Starting condition roof in spoiler position From the spoiler position pressing the opening button once the roof goes automatically to the full vertical opening position Complete horizontal opening position spoiler position Complete vertical opening position From the spoiler position pressing the opening button once the roof moves automatically If before reaching the complete vertical opening position the button is pressed again the roof stops and reverts its movement going back to the spoiler position No intermediate positions are allowed for the vertical section a19 Fiat 500 C S amp S KS Roof in spoiler position TFR TRI WORK a Roof in spoiler position after pressing the button ll WORK 20 Fiat 500 C S amp S Starting condition fully open roof Starting from the fully open roof position pressing the closing button once the roof closes automatically until reaching the spoiler position Roof in vertical opening position Roof in spoiler position The vertical opening control is prevented if the tailgate is open This is due to the fact that the tailgate opening position would interfere with the rear window movement Vice versa when the roof is in full vertical opening the tailgate ope
23. pen soft top the interior temperature sensor would detect always a rather high temperature thus the fan would work always at high speed and risk following damage Under these conditions the climate control system node decreases the fan speed The climate control system compressor is operated by the driver even if the soft top is open Heated rear window soft top interaction The heated rear window like all non convertible versions is 20 minutes in total with the following difference Fiat 500 10 minutes engine off 10 minutes engine on Fiat 500 C 15 minutes engine off 5 minutes engine on The defrosting function meant as heated rear window and heated mirrors if installed can be enabled only if the soft top is closed If the function is operating and the soft top is opened it deactivates In this case when the roof is closed to restore the defrosting function press the button again 2 Fiat 500 C S amp S ELECTRICAL SYSTEM The soft top system electrical part is formed by 1 Motor with Hall effect position sensor 2 ROU control unit Roof Control Unit Motor RCU control unit Roof Control Unit Wiring harness The RCU control unit and the motor are located at the back of the soft top They are both fastened on the soft top frame part below the rear window 28 Fiat 500 C 585 RCU control unit and motor The motor includes a Hall effect position sensor The fully open and
24. rectness of movement controls it can store possible malfunctioning errors The RCU cannot undergo diagnosis procedures The errors for the soft top management are stored in the BCM The RCU interfaces with the user through the opening and closing buttons The RCU output is the control of the motor The latter sends a feedback signal to the RCU concerning the soft top position by the relevant Hall effect sensor 30 Fiat 500 C S amp S Wiring diagram INT IN T B001 E1 F1 M001 NBC L B18 F23 31 Fiat 500 C S amp S Key M001 Body Computer Node B001 Engine compartment control unit H130 Opening closing buttons M187 Roof Control Unit soft top control unit M193 Motor with integrated position sensor RCU control unit PinOut 30 battery supply GND earth for integrated Hall effect sensor bus LIN line soft top opening control opening switch soft top closing control closing switch n C n C connection to motor connection to GND earth 10 n c 11 n c 12 n c 13 position sensor 1 signal 14 position sensor supply 15 position sensor 2 signal 16 connection to motor motor PinOut Motor side connector motor control from RCU motor control from RCU position sensor supply position sensor GND earth position sensor 1 signal position sensor 2 signal 32 Fiat 500 C 585 Diagnosis and recovery conditio
25. sing movement up to about 25 cm from the fully closed position then closing must be completed manually Roof opening and closing in the horizontal section can be made only under 60 km h For the vertical section the same speed threshold applies Movement by remote control Comfort opening The remote control is allowed only with engine switched off and closed doors The remote control can only open the roof in its horizontal section up to the spoiler position Continuously pressing the release button C the roof opens and stops in any position when the button is released The soft top closing by remote control is not allowed Soft top movement and vehicle speed The driver can move the soft top in the horizontal and vertical sections if the vehicle speed is below 60 km h If during the vertical movement the vehicle speed exceeds 60 km h the soft top must reach one of the two safety positions spoiler or fully open before stopping its movement This means that if the vertical section is being closed when 60 km h are exceeded the soft top must reach the spoiler position before stopping e lf the vertical section is being opened when 60 km h are exceeded the soft top must reach the fully open position before stopping Soft top movement and temperature The soft top can be moved in any temperature condition between 18 C and 80 C Between 30 C and 18 C only a closing control is allowed Below 30 C no movement is allowed
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