355 fuse question | FerrariChat

355 fuse question

Discussion in 'Technical Q&A' started by vlamgat, Jan 13, 2007.

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  1. vlamgat

    vlamgat Formula Junior

    Jan 9, 2004
    776
    The clock has stopped working but I cannot find a reference to a fuse in the owners or worshop manuals. Can anyone clue me in?
     
  2. PAP 348

    PAP 348 Ten Time F1 World Champ
    Lifetime Rossa Owner

    Dec 10, 2005
    100,228
    Mount Isa, Australia
    Full Name:
    Pap
    Something else must of have stopped working too then, find that and you will find your fuse ;)
     
  3. vlamgat

    vlamgat Formula Junior

    Jan 9, 2004
    776
    Problem is its a Challenge car and most electrical items are non-functional. So why do I need a clock you may ask...with my speeds its the best timing device for the job. :) I have checked all the small fuses (5 amps and they are ok.
     
  4. f355spider

    f355spider F1 World Champ
    Owner Rossa Subscribed

    May 29, 2001
    18,055
    USA
    All the fuses are in the passenger foot well and driver's side of the front trunk. Start checking there first.
     
  5. Miltonian

    Miltonian F1 Veteran

    Dec 11, 2002
    5,966
    Milton, Wash.
    Full Name:
    Jeff B.
    Pardon me if this is totally unhelpful, but on the 348 the power to the climate control panel (including the clock display) comes through the "hidden fuse" which is located on the passenger side of the heater box under the front trunk lining, not from a fuse in either of the main fuse panels. Since I have no experience with the 355, I don't know if it is set up the same as the 348, but this might explain why there does not seem to be a fuse visible for the clock.
     
  6. vlamgat

    vlamgat Formula Junior

    Jan 9, 2004
    776
    Many thanks - that's what I was looking for. We are having an ice storm here but I will take a look next weekend.
     
  7. jm3

    jm3 F1 Rookie

    Oct 3, 2002
    4,364
    United States
    Full Name:
    JM3
    FYI

    On the "hidden fuse panel", the furthest fuse forward is supposed to be empty. This is where a fuse is installed for diagnosis of the abs, so it is designed to be empty. This is hidden between the lines, for all the world to enjoy in paragraph XX of page YY in the shop manual that cost $500 on ebay.

    "Furthest fuse forward". Say that fast 10 times.

    JM3
     
  8. TopElement

    TopElement Formula 3

    May 14, 2005
    1,540
    OC & Vegas
    Full Name:
    A Montoya

    In the 355 the hidden fuse seems to only supply power to the heating/cooling blower system. My clock still worked fine with the hidden fuse blown.
     
  9. Terry

    Terry Formula Junior

    Nov 3, 2003
    250
    Cheshire, UK
    Full Name:
    Terry
    I have the same problem, the clock has stopped working, everything else seems OK.

    Would be very interested if anyone has the solution, there must be a fuse somewhere?
     
  10. TopElement

    TopElement Formula 3

    May 14, 2005
    1,540
    OC & Vegas
    Full Name:
    A Montoya

    Is it possible the actual clock stopped working? I'm sure a Casio is more reliable.
     
  11. vlamgat

    vlamgat Formula Junior

    Jan 9, 2004
    776
    Could well be the problem. Only need the tach, oil pressure and temp gauges.
     
  12. f355spider

    f355spider F1 World Champ
    Owner Rossa Subscribed

    May 29, 2001
    18,055
    USA
    Well, you can take it out and put 12 volts to it and be sure...
     
  13. FERRARI-TECH

    FERRARI-TECH Formula 3

    Nov 9, 2006
    1,677
    Los Angeles
    Full Name:
    Ferrari-tech

    Just had to fix one for a client.
    Fuse box under the passenger kick pannel, 10amp (red) top row 3rd in from left, on this car the fuse was marked for int-locking.
    Hope yours is as easy to fix.
     
  14. vlamgat

    vlamgat Formula Junior

    Jan 9, 2004
    776
    Just wanted to let you know that this was the right answer !! Many thanks I am back in time.
     
  15. f355spider

    f355spider F1 World Champ
    Owner Rossa Subscribed

    May 29, 2001
    18,055
    USA
    Great to hear! I will admit whenever I have a non-functioning accessory on a car, I will run a quick check of all the fuses in the car. Pretty easy with a continuity tester...each fuse has to exposed metal "points" and only takes a second to test each one. You can run through each panel in a few short minutes (trunk and footwell).
     
  16. PAP 348

    PAP 348 Ten Time F1 World Champ
    Lifetime Rossa Owner

    Dec 10, 2005
    100,228
    Mount Isa, Australia
    Full Name:
    Pap
    Yeah that is true but a good test light will also make that task quicker without the need to remove the fuse out of the holder as you would need to do with a continuity tester ;)
     
  17. f355spider

    f355spider F1 World Champ
    Owner Rossa Subscribed

    May 29, 2001
    18,055
    USA
    That is what I was suggesting, the two exposed metal points are on the BACK of each fuse, so it does not require removal of each fuse. Sorry if my explanation was not clear.
     
  18. vlamgat

    vlamgat Formula Junior

    Jan 9, 2004
    776
    I never noticed them and the fuse I found in my collection to replace the failed one did not appear to have any "test" connections. But I must look more closely as testing each fuse while lying across the cage (Challenge) in 95 degrees just aint fun.
     
  19. PAP 348

    PAP 348 Ten Time F1 World Champ
    Lifetime Rossa Owner

    Dec 10, 2005
    100,228
    Mount Isa, Australia
    Full Name:
    Pap
    It's all good Hugh :)
     
  20. f355spider

    f355spider F1 World Champ
    Owner Rossa Subscribed

    May 29, 2001
    18,055
    USA
    #20 f355spider, Aug 26, 2007
    Last edited by a moderator: Sep 7, 2017
    Here is a picture of a ATC blade fuse...notice on the back of the fuse the exposed metal "points" that can be touched with a continuity tester? Just use fine point test probes to check.
    Image Unavailable, Please Login
     
  21. PAP 348

    PAP 348 Ten Time F1 World Champ
    Lifetime Rossa Owner

    Dec 10, 2005
    100,228
    Mount Isa, Australia
    Full Name:
    Pap
    Cool pic ;)

    Yes with the fused removed you use a continuity tester to test the fuse but if you try to check the fuse while it is still inserted in your fuse box you will blow the continuity tester bulb, if the fuse is still inserted in the fuse box use only a test light to check the exposed metal points :)

    Most times when I use my continuity tester it is only for checking for broken wires in a harness or to check is a relay is latching etc... :):)
     
  22. jayz

    jayz Formula 3

    Jan 16, 2006
    1,153
    Los Angeles, CA
    Full Name:
    Jess
    usually what i do, with the fuse in the fuse box, i touch both exposed metal points with a test light, if each point lights up the bulb, i know the fuse is ok.

    you can check all the fuses in the fuse box very quickly this way.
     
  23. f355spider

    f355spider F1 World Champ
    Owner Rossa Subscribed

    May 29, 2001
    18,055
    USA
    I use a Fluke True RMS multi-meter. I have it set on continuity, and touch one probe on one contact on the back of fuse, and the other probe on the other contact on back of fuse. Works for me. :)

    But you guys are right, there is a difference between testing for continuity and testing for voltage. Use the right tool! ;)
     
  24. PAP 348

    PAP 348 Ten Time F1 World Champ
    Lifetime Rossa Owner

    Dec 10, 2005
    100,228
    Mount Isa, Australia
    Full Name:
    Pap
    #24 PAP 348, Aug 27, 2007
    Last edited by a moderator: Sep 7, 2017
  25. f355spider

    f355spider F1 World Champ
    Owner Rossa Subscribed

    May 29, 2001
    18,055
    USA
    I have the EXACT same model Fluke! :)
     

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