Clearing CEL codes on my 1995 355 | FerrariChat

Clearing CEL codes on my 1995 355

Discussion in '348/355' started by enzob, Aug 5, 2008.

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  1. enzob

    enzob Rookie

    Jan 31, 2004
    39
    San Diego, Ca
    Full Name:
    Enzo Bertaggia
    I did a search on "clearing codes 355" and could not find my answer for my 1995 355.

    I found a good thread on reading CEL that was written for a 348. I found it mostly useful but there was a few differences after I had pulled three different codes: 4114, 1212 and 1211


    "When the last codes have been pulled, you will get nothing but long flashes telling you that there are no more stored codes."

    On my 355, after pulling several codes, the last code keep repeating.

    The way he said to clear the codes is: "Now that all the codes have been pulled you will want to clear the ECU of the stored codes. When the ECU's is giving nothing but long flashes, you need to push and hold down the button for 10 seconds to clear out the old codes."

    Since I never got the long flashes, I am not able to clear the codes.

    What is the trick?

    Thanks,

    Enzo
     
  2. Fpassion

    Fpassion Formula Junior

    Jun 1, 2005
    599
    Removing the DMU relay on most cars will clear a code. The code will come back it just goes through a cycle.
     
  3. Fpassion

    Fpassion Formula Junior

    Jun 1, 2005
    599
    Enzo your PM is not working.
     
  4. Sheldon Rubin

    Sheldon Rubin Rookie

    Jul 10, 2006
    37
    I searched the this Forum and printed out some photos of the location of the OBDII connector under the dash. But I still am unable to find it on a 1997 F355 Spider that I am evaluating before buying. Could it have been relocated somewhere? The CEL is OFF and the bulb lights up during start-up, which should mean that there are no codes present to readout. Engine idles roughly but smooths out upon acceleration and cruise. The car's odo shows 28K miles and there is no History. I am suspicious that the Dealer or someone may have hid the connector to prevent me from observing the readout codes? But then the CEL would be ON not OFF. Correct?
     
  5. ahrddr

    ahrddr Rookie

    Aug 1, 2007
    45
    So Cal/N. VA/FL
    I have heard about depressing some button on the ecu's to for a few seconds to clear codes...I have a 96 355 and have taken off the metal guards(?) by in the engine bay over the rear shock towers. I believe that I have located the ecu's on either side but dont see any button to depress. I may be making a complete fool of myself ...but where is the button at? do i have to open the ecu box up to expose this button? I would be very grateful if someone had a pic or something else to post on this clearing button. Thanks in advance for your help.
     
  6. jm3

    jm3 F1 Rookie

    Oct 3, 2002
    4,364
    United States
    Full Name:
    JM3
    That is 1995 only (OBD1)

    1996 needs two things, and then it very simple.
    1) You need the wiring harness / OBD2 terminal updated. This is done by Ferrari, and is part of a recall. You can also do it yourself if you are handy.
    2) You need a commercial OBD2 reader, search Fchat for what people like. This plugs into your OBD2 terminal under the dash and tells you the codes on a display.



    Jay
     
  7. No Doubt

    No Doubt Seven Time F1 World Champ

    May 21, 2005
    72,740
    Vegas+Alabama
    Full Name:
    Mr. Sideways

    Turning off your car battery will also clear OBDI codes.
     

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