P 4/5 Won't recognise keys?? | FerrariChat

P 4/5 Won't recognise keys??

Discussion in 'Technical Q&A' started by Napolis, Oct 24, 2008.

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  1. Napolis

    Napolis Three Time F1 World Champ
    Honorary Owner

    Oct 23, 2002
    32,118
    Full Name:
    Jim Glickenhaus
    Replaced the clutch, adjusted the shifting with the computer, cleaned her up, road tested her, all is super. Got her home turned her off in the driveway and now she won't recognise either key. Dash icon shows them locked out. Tried rebooting by shutting off the battery but no go. Talked to Ferrari who think we have to hook her up to computer again.

    Anyone have any thoughts?

    Sal and Jesse pushed her into the garage. Quell Bummer.
     
  2. Stackhouse

    Stackhouse F1 Rookie
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    Feb 14, 2004
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    CT.. AKA Pimp Daddy
    Jim,

    You are not cutting corners by purchasing P 4/5 replica keys on Ebay are ya????


    ;)
     
  3. fatbillybob

    fatbillybob Two Time F1 World Champ
    Consultant Owner

    Aug 10, 2002
    29,243
    socal
    If this is a ferrari factory system isn't there a code with the pin to do position 1/2 on/off code so that the key will be recognised? Also can't you reprogram the black fobs with the red master?
     
  4. tfazio

    tfazio Formula 3
    Rossa Subscribed

    Apr 20, 2004
    1,983
    Michigan
    Is it possible that interference from a cell phone, iPod, or another frequency could have caused the key fobs to become inoperable? I doubt this is the cause but I have heard of cases where key fobs were not recognized and the reasons were what I listed above.
     
  5. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,310
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    Terry H Phillips
    Change the batteries in the remotes. If that does not work, change the battery in the car. Lots of weird electrons flowing around now. Related to the stock market, I think.

    Taz
    Terry Phillips
     
  6. 285ferrari

    285ferrari Two Time F1 World Champ
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    Sep 11, 2004
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    Robbie
    This happened to me in my P4/5 recently and I ......... :D----Hope you get it figured out soon Jim..
     
  7. Etcetera

    Etcetera Two Time F1 World Champ
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    C6H14O5
    I'm thinking...Lemon Law the vehicle.
     
  8. saw1998

    saw1998 F1 Veteran

    Jun 8, 2008
    8,237
    San Antonio, Texas
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    Scott
    Jim:

    Since the car is home, safe in the garage why don't you turn the battery off for several hours and then try the key(s) again. Sometimes it takes a while to completely "reset" the EEPROMs in the ECU. It probably will not make any difference, but what do you have to loose? Since it's BOTH keys, it is definitely an ECU-mediated recognition problem. Unfortunately, you are going to, in all probability, be forced to have the ECU reprogrammed to re-recognize the keys. BTW, both keys were not exposed to any type of strong magnetic field or electrical pulse, were they? I hope this does not cause you too much difficulty. Best of luck!

    Take care,

    Scott

    P.S. If the car becomes just too problematic to manage, I'll do you a favor and take it off your hands. LOL
     
  9. Monaco Detailer

    Monaco Detailer Karting

    Nov 26, 2007
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    Monaco
    Full Name:
    Darren Townend
    What an AWESOME car!! i love it, i want it, i need it............... NOW!!!

    hope you get your problem solved Jim.
     
  10. dan360

    dan360 F1 Rookie

    Feb 18, 2003
    2,669
    Boston
    I had a similar problem in my CS which was due to low battery charge - it locked the doors because the charge went below a certain level and it thought it was being stolen. We needed to break into my car with a jimmy since the key wouldn't even open the door since it was "double locked". A new battery cured the problem. Of course maybe unrelated but I'd support the recharge/new battery, plus recycle the power again.

    Good luck!
     
  11. Napolis

    Napolis Three Time F1 World Champ
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    Oct 23, 2002
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    Jim Glickenhaus
    Are there batteries in the keys? The manual is written in greek.
     
  12. Napolis

    Napolis Three Time F1 World Champ
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    Oct 23, 2002
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    Jim Glickenhaus
    Factory Enzo system. 2 red keys plus key code card.
     
  13. Shamile

    Shamile F1 Veteran

    Dec 31, 2002
    6,712
    Lakeland FL
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    Shamile
    Dear Ferraristi,

    Maybe you should just drive an original P4. No stupid electronic crap there. :D

    ....I'm sure you have one in your collection.

    I'm surprised that a Ferrari service vehicle with onboard computers didn't already show up at your home. At a certain level of purchasing and servicing....you deserve no less.

    Shamile

    Freeze...Miami Vice !
     
  14. fatbillybob

    fatbillybob Two Time F1 World Champ
    Consultant Owner

    Aug 10, 2002
    29,243
    socal
    The code card is your pin. In lesser Ferraris you can start the car by using the pin if your fob is not recognised. Your WSM or owners manual has the process. In lesser Ferraris an example of how to use the pin is:
    key in ignition let sit for 20 seconds
    lets say your code is 234
    turn key from off=position 0 to on=position 2 (not start) for 2 cycles then let key sit in position 0 for between 2-10 seconds
    then turn key on/off like above for 3 cycles then let sit for 2-10 secs
    then turn key on/off like above for 4 cycles then let sit for 2-10 secs then turn key and start the car

    I hope that works.

    I'm going to start a thread on how to get rid of Ferrari integrated ECU alarms in another thread
     
  15. tazandjan

    tazandjan Three Time F1 World Champ
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    Jul 19, 2008
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    fatbillybob- That would be a great service. System scares me to death, especially with only one black fob.

    Taz
    Terry Phillips
     
  16. saw1998

    saw1998 F1 Veteran

    Jun 8, 2008
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    Scott
    #16 saw1998, Oct 25, 2008
    Last edited: Oct 25, 2008
    Jim:

    I'm not sure if there are replaceable batteries in the Enzo keys. if you hold the key by the blade with the Cavallino Rampante shield facing you, down in the lower right-hand corner (i.e., right-side bottom surface, near the key blade), you'll see a small indentation. Take a thin-blade screwdriver (or you can use the Sterling Silver keychain tag) and gently pry the covers apart. Once open, you'll be able to ascertain whether there are replaceable batteries. That being said, if BOTH keys are not working, the probability of the lack of key code recognition it being caused from a "low" battery condition, IMO, is minimal. I think this is an ECU-mediated recognition problem. One other thought, does the Enzo factory alarm have a battery back-up module for the ECU? Sometimes, if these batteries go dead, the alarm ECU looses its ability to recognize the key code. Also, as our "Stooge" FFB stated, in our "mere mortal" Ferraris (e.g., F355) we can enter the key code into the alarm system by turning the ignition key in a specified manner to manually enter the key code. Does the Enzo alarm have that ability, also? I would think it does if they provide a key code card. Give FFBs procedure a try, but do it slowly and deliberately. It can be a little temperamental.

    Again, best of luck,


    Scott
     
  17. saw1998

    saw1998 F1 Veteran

    Jun 8, 2008
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    Scott
    Thanks Buddy! I just spent over $700.00 to get a set of 3 remotes and a new alarm key code! LOL BTW, that really would be another great service to the Ferrari community. You're a really good man, FBB!
     
  18. WILLIAM H

    WILLIAM H Three Time F1 World Champ

    Nov 1, 2003
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    HUBBSTER
    I'll give you $100 USD for it :)
     
  19. Napolis

    Napolis Three Time F1 World Champ
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    #19 Napolis, Oct 25, 2008
    Last edited: Oct 25, 2008
    Hi

    Thanks for all info. Everyone thinks that when we replaced the clutch and adjusted it by computer we lost key Code somehow in ECU and will have to rehook up computer and go step by step to correct all "errors" and all should be good.

    If not I'm going to rip out entire system and replace it all with a small block chevy like the one in my Lola which I've found if you can't get it started at least you can see clear through the block.

    Thanks!
     
  20. Ferrari0324

    Ferrari0324 F1 Rookie

    Mar 20, 2004
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    Brandon
    Do you think that V12 will fit in my Mustang?
     
  21. thecarreaper

    thecarreaper F1 World Champ
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    Sep 30, 2003
    18,109
    Savannah
    silly question perhaps, but would there not be some sort of ecu fault code set in the system memory? i know nothing of enzo computer systems, but i do work with high end avionics at work, and it seems there would be some sort of code set for diagnostics.

    is there a way to scan the system to see if there are any hard fail fault codes?

    i hope it works out for you without too much more fuss.

    M
     
  22. tazandjan

    tazandjan Three Time F1 World Champ
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    Jul 19, 2008
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    Jim- An LS-7 weighs about the same as the V-12, but the soundtrack will be disappointing in comparison. Have you posted photos of the car? At first I thought you were kidding and then it dawned on me you really did have a P4/5 that would not start. Even just as sculpture, the cars are breath-taking.

    Taz
    Terry Phillips
     
  23. Dr_ferrari

    Dr_ferrari Formula 3
    Consultant Professional Ferrari Technician

    Nov 2, 2003
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    Jim McGee
    Most likely it lost the code when the power was shut down, I have seen it happen on some that were left and the battery died. you should be able to re-sync the remotes to the ecu.

    Try holding the unlock button for more than 30 seconds and watch the alarm led on the dash and see if there is a change in the flashing. if it does not work, you will have to relearn it manually and you will need the key code for that (white 3x5 paper in with the books). I can give you the procedure if you need.

    Best regards, Jim
     
  24. tazandjan

    tazandjan Three Time F1 World Champ
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    Jim- One of the more knowledgable chatters told me via PM (thanks) you have the only P4/5 in the world. When I grow up (probably will never happen), I want to be just like you.

    Taz
    Terry Phillips
     
  25. wax

    wax Five Time F1 World Champ
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    Dirty Harry
    What an inappropriate thing to say before my dear friend 'Napolis surprises me by sending the key-psake as a Christmas present!
     

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