355 Do it yourself thread | Page 4 | FerrariChat

355 Do it yourself thread

Discussion in '348/355' started by taz355, May 4, 2013.

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  1. taz355

    taz355 F1 Veteran
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  2. FCOnyx

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    #77 FCOnyx, Mar 12, 2016
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  3. FLORIDAsnakeEyes

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    #78 FLORIDAsnakeEyes, Apr 4, 2016
    Last edited by a moderator: Sep 7, 2017
    Pic of the Vac run around, HOW to reiteration. This is on the Rear Passenger side behind the bumper. This is what it needs to look like should you want the ex manifold valve open ALL THE TIME>
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  4. FLORIDAsnakeEyes

    FLORIDAsnakeEyes Formula 3

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    DASH Removal. Thanks to the guys in UK

    '---------------------------------------------------------

    This procedure is for the 355 and Jason (candellara) will post the extra/different actions for the 348.

    1. In order to gain a little more clearance in the corners of the dash to aid removal.
    a. Remove sunshades
    b. Remove upper windscreen surround trim (overlaps with windscreen side trim).
    c. Remove left and right windscreen/door trims.
    d. Remove the steering wheel, much easier with this out of the way.

    2. Remove centre instrument binnacle via two screws on lower frame. All the electrical connectors are different so no need to identify.

    3. With access through the instrument binnacle, remove right and centre air vents.

    4. From below and above, remove left vent.

    5. Remove radio and centre instruments. This makes the dash easier and lighter to handle.

    6. Disconnect electrical plugs, 2ea left side (tweeter and glove box light) and 2ea right side (tweeter and temp sensor).

    7. Remove six upper dash attachment bolts (10mm socket) and five lower attachments, cross head self tapers.

    8. In the centre of the dash below the instrument binnacle are two rivets securing the edges of the two lower dash trims. Drill out the right hand rivet to facilitate removal of the right hand lower dash trim.

    9. The dash should now be free to pull rearward and pop out of the two outboard fixing studs. Pull back about 100mm just enough to gain access to the two nuts securing the right lower dash trim. Remove these two nuts and the small right hand lower dash trim can then be removed. I did this to provide greater clearance when removing the dash and to reduce the risk of damage to the leather,

    10. Lift out dash.

    With the dash out, it is a good opportunity to clean the lower windscreen and the forward portion of the dash. Air vents can be washed and the glove box disassembled for a good clean. I used Woolite to clean inside the glove box. I tried a variety of leather cleaners but all still left the tide mark on the dash from previous cleaning. I then used Connelly Hide Food which really does a superb job and removed any traces of previous cleaning. After applying Hide Food remove any surplus with a micro fibre cloth for an original finish. Any aftermarket wiring for audio or alarm can now be correctly routed and tied with good access. I also upgraded the speakers and hid away the crossover behind the dash. I will post these details in a separate post.

    Re-installation is a reverse of the above. I drilled out both the rivets below the instrument binnacle and replaced with self tappers, much easier for future access. The leather needs peeling back behind the rivets to avoid any mess during drilling then re-gluing afterwards.
     
  5. alexpivo52

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    #80 alexpivo52, May 27, 2016
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  6. alexpivo52

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    #81 alexpivo52, Jun 9, 2016
    Last edited by a moderator: Sep 7, 2017
    Anybody knows of where the seatbelt LH Driver Side lock cable is connecting to? There are 2 pins: Black is Ground and Yellow is the signal. When the seatbelt clamp locks in, the lock shortens the Ground to the Yellow wire. My seatbelt warning light goes off when the engine starts up regardless the seatbelt is fasten or unclipped.

    This 2-wire harness goes into the major harness at the end of the tunnel and I was not able to trace it in the tunnel under AC Control panel and other buttons or at the front end of the tunned with the cable tracer device.
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  7. Qavion

    Qavion F1 World Champ
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    Have you proved that the seat belt switch is not faulty by shorting out the black and yellow wires on the plug coming from the centre console?

    The wiring diagrams for the car seem to omit the wiring. I could only find a yellow/blue wire on instrument panel plug "E" (pin 8) going to the seat belt warning light.
     
  8. Qavion

    Qavion F1 World Champ
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    P.S. Correction: On my car (Euro based '98 spider), shorting out the wires puts on the seat belt light (I have no buzzer on my car). On my car, putting the seat belt male into the seat belt female breaks the light circuit.

    http://members.iinet.net.au/[email protected]/FerrariF355Spider/SeatbeltCircuit.gif

    So, with ignition on (prior to starting), is your seat belt light on?
     
  9. alexpivo52

    alexpivo52 Karting

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    #84 alexpivo52, Jun 10, 2016
    Last edited by a moderator: Sep 7, 2017
    Yes, I've checked the seatbelt switch and it's working as you described: it shortens the black Ground wire to the Yellow-Blue (GL) and when clipping the belt in, it opens up.

    I traced the Yellow-Blue wire to the front end of the Tunnel and it's coming to the Pin #1 of the Dashboard Connector A. The Yellow-Blue wire goes out from the other end of the connector and goes into the wire harness. I was not able to trace it further. On the Instrument Cluster connectors there is no any Yellow-Blue wire and there is no same wire on the Electrical Board connectors

    You was right, the Yellow-Green (GV) coming out of Electrical Board connector "E" on the Pin #8 and it goes to the Pin#15 connecor "E" on the Instrument Cluster supplying +12V to the Seatbelt Warning Light, Shock Absurbers Light, and the Airbag Light. This wire also goes to the Pin #2 of the Dashboard Connector A.

    The Ground signal is being supplied to the Instrument Cluster connector "E" on Pin #8, Pink-Yellow (SG) wire. This wire is not present on neither Dashboard Connectors A or B at the front end of the Tunnel. I noticed on the Instrument Cluster Connector "E" this Pin also shares Ground with other Pins when the Ignition Key is in the positin OFF, although on the Instrument cluster it is designated for a Ground for the Seatbelt Warning.

    I followed your logic and shortened the Yellow-Blue from the Seatbelt lock to the Ground of the Seatbelt Warning light. When I did so, the Airbag and Battery Warning lighghts came on. Clipping the belt was switching all these 3 lights ON/OFF. When finished with this exersize, the Airbag Light is always ON now.

    So:

    1) Anybody knows of where the Yellow-Blue (GL) wire is going from the Pin #1 of the Dashboard Connector A?

    2) Where the Pink-Yellow (SG) wire does go off the Pin #8 of the Instrument Cluster Connector E?

    3) How to reset the Airbag light besides going to the dealership (had done so last Summer once aleady).

    Note: in the Workshop Manual Vol. 3, pp H40-41 there is a procedure of resetting the light by shortening the Pin #1 of the diagnostic connector to the Ground for 5-10sec. My diagnostic connector doesn't have a Pin #1 but #2 and 3 only (the pins are marked on the connector).
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  10. Qavion

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    #85 Qavion, Jun 11, 2016
    Last edited: Jun 11, 2016
    One of us is very confused here (probably me). We probably should have started a separate message thread for this topic.

    Thanks. I'll try to add that in an update to my diagrams.

    The Euro wiring diagrams (Figure 7) show a Green-White (VB) wire going to Instrument Cluster Plug E pin 15 (for power to the various warning lights).

    Ugh.. sorry.. I didn't know you had your instrument panel disconnected. Switching on the ignition with the instrument panel disconnected usually triggers the airbag light (It doesn't have anything to do with shorting out the seat belt wiring). I don't have 3 pins on my diagnostic plug either, so I had to take the car to a Ferrari specialist to reset my airbag light (I made the same mistake). Some say you can disconnect the battery for a while, then reconnect it, but that didn't clear my airbag light.

    I'm starting to think our wiring is different. The Euro wiring diagrams show a "GL" (yellow/blue) wire on Instrument cluster plug E pin 8. On my car, if I had a ground on Instrument cluster plug E, pin 8, I would think either the seat belt wasn't fastened or that wire on pin 8 was incorrectly shorted to ground (This would put the light on permanently).

    It's a pity you can't trace the wiring from pin 8. If it disappears into a harness, make sure that the harness isn't rubbing against a sharp bit of metal or screw.

    Thanks for the photos. I'm sure they'll help me greatly in the future.

    Cheers
    Ian.
     
  11. Qavion

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    Alex, with the additional information you have provided, if I had to guess at how Euro-based cars are wired up, it would be something like this...

    http://www.iinet.net.au/[email protected]/FerrariF355Spider/SeatbeltCircuit2.gif

    I've added the "dashboard plug" 41024... and a splice where the wires change colours and perhaps where a seat belt buzzer circuit is added.

    Perhaps yours is the same, but with some different wiring colours?
     
  12. Qavion

    Qavion F1 World Champ
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    Can you put an ohmmeter between instrument panel plug E pin 8 and the pin on the Dashboard Connector (that you marked "Seatbelt Lock") and see if you have zero ohms? That is, with the plug under the seat disconnected and the ignition off. If you have zero ohms (continuity), can you shake the accessible parts of the wiring harness (between the instrument panel and dashboard connector) to see if the resistance changes?

    I often wonder if the instrument binnacle retaining screws cause problems on some cars (they sometimes screw into the wiring harnesses).
     
  13. alexpivo52

    alexpivo52 Karting

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    Just came from a local Ferrari shop who reset my airbag light. I asked the shop owner if he is aware if this feature could be re-programmed in the ECU by a prev. owner. He said he is not aware the Seatbelt Warning lights could be programmed. There was another 355 in the shop so the shop owner showed the Seatbelt Warning Light in another 355 behaved exactly the same: Comes up with ignition ON and goes off then, regardless if the belt is fasten or unclipped. He said it could be this way on ALL 355s, at least the US version.

    Answering other questions: the instrument cluster screws not touching anything, all clear.

    Yes, there is "0" Ohms b/w Pin #8 of the Instrument Cluster Connector E and Pin #1 of Dashboard Connector A.

    On your diagram if there is a device that supplies ground to the bulb, at least for the EU version I would say now, it will be between the Pin #1 of the Dashboard Connector A and the Pin #8 of the Ground for the Seatbelt Warning Light.

    Clarification: what triggered the AIRBAG light to go off was not having one of the connectors disconnected but I had plugged a shortcut wire to the back of the Pin #8 of the Instrument Cluster Connector E and the Pin #1 Dashboard Connector A - supplied the Ground from the seatbelt lock to the Seatbelt bulb. What I said because there is a device that manages the Ground for Seatbelt Warning, AIRBAG, SLOW DOWN light, and I think the Battery light (don't remember exactly but it were 3 warning lights that were going on and off when had the shortcut wire on and clipping the driver seatbelt on and off. I think what happened the AIRBAG ECU detected the AIRBAG light up when it was not supposed to be and threw an error code out which lit the AIRBAG light up then.
     
  14. Qavion

    Qavion F1 World Champ
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    Interesting. This suggests the light is a "reminder", not an "enforcer" :) This might mean that there is some kind of timer in the circuit? So do you think you still have a problem or not? I just find it strange that you would need wiring to the seat belt at all if the status of the seat belt doesn't affect the light (on your car and the other car).

    On the surface, you car seems to be wired up like my Euro car, but, as you say, your light goes out irrespective of what happens to the seat belt.

    I don't quite follow you. If you look at my diagram, the earth is on the other side of the seat belt. Pin #1 of Dashboard Connector A goes to the seat belt, then through the seat belt switch to an earth of unknown location. Power for the light is provided by pin #15 on the instrument cluster plug (although it could be pin #1 ... The pin numbers are not shown in the Ferrari diagrams)

    Just to clarify an earlier point... You said:

    The Airbag and Battery lights illuminate normally with the ignition turned on. However, like most warning lights on the instrument panel, they either time-out or extinguish after the engine is started.

    I really can't see how the seat belt would do this, especially with the shorting link there. I asked you to put the shorting link there to bypass the switch in the seatbelt completely. I'm more inclined to think that the lights were simply going on and off because the ignition was being turned on and off (or timing out). These warning lights only have power with the ignition on (through a common pin on the instrument cluster).

    Hope this makes sense.
    Cheers
    Ian.
     
  15. 97 Spider

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    Hey guys, just a suggestion but if you want to carry on with this maybe go start a thread about it then link it back here in this thread. Go look at most of the posts in this thread. They are links to threads about specific work. If this thread is used as a place to post the work itself it will be 500 pages long and useless for anyone actually trying to find a fix for a certain thing.
     
  16. WATSON

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    +1000 Can a Mod please split this off so we can get this thread back to the repository of links it was intended to be?
     
  17. Qavion

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    +1000

    Please do (it's beyond my capabilities). Thanks.
     
  18. alexpivo52

    alexpivo52 Karting

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    #93 alexpivo52, Jun 16, 2016
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  19. jhugger

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    how do i get at the power steering pump to replace it. i also need to inspect the ps belt to see if it is worn
     
  20. ernie

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  21. taz355

    taz355 F1 Veteran
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