I am not clear why one wants to read codes if one is not a shop you can not fix it anyhow if I have a CEL I go to the dealer they usually tell me the code and I type it into Google search and read what this is all about you got to love the Internetīack to the facts - don't buy a cheap scan tool that only supports a single vendor / protocol There is another F forum name cant be typed here - and there someone claims that the following will do the trick for F cars I havent checked if it works so dont blame me See for more info and the sites for all you ever wanted to know about OBD-2 (wait for OBD-3, which is even better proposal it that it will uplink to the government) SAE J1850 PWM (Pulse Width Modulation), e.g.
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ISO 9141 mit KWP (Key Word Protokoll), e.g. SAE J1850 VPW (Variable Pulse Width Modulation), e.g. The parameters and values one can scan through the OBD-2 connector are the same for all compatible cars however the protocol to read them is different the car manufacturers world wide could not agree on one protocol there is: Wrong no need to bash F the facts are different Which readers do others use and what have you been able to decode with these? but I also find myself under the hood of my Roadrunner much more than my 550. It's clear there's many other great features with the SD2. I don't need a unit that tells me the clutch needs adjustment. and in past threads it's usually been questions related to the engine, fuel, intake and exhaust (cats, O2 sensors) that needed de-coding. I'd also assume that most standard engine related fault codes can be read. and assuming the OBDII "standard" is regulated by law as I've now been told. I've been shopping around for a code reader and have found very inexpensive aftermarket ones starting at a few hundred dollars. I'd like to read generic faults without having to involve the dealer and was always under the assumption this wasn't an option.
"what did the readout say at the dealer". the universal response to many questions was. I started this thead because after reading thousands of threads. but at $ 30k does everyone really need many of these features if you're only interested in finding standard faults.
there being many added features available to SD2 users. Seems there's never a simple (straight) answer to anything Ferrari. I'm certain most late model owners would love to know a lot more about this. why Ferrari SD2 units are the only way to get at Ferrari codes. and please explain in detail what the differences are. Would love to hear from anyone who's in the know. Does Ferrari use a different system? Does Ferrari use a different connector? Will an aftermarket OBDII unit work. I know there's a standard system used on most cars called OBDII. The factory Ferrari SD2 reader costs tens of thousands of dollars but I wonder if this is just another situation where everybody believes only Ferrari parts/tools will do this job. or if they will actually work on a late model Ferrari or specifically, my 2000 550. I'm not clear what these after market units are capable of doing. but I have never used a code reader and know little about the differences between these and the diferent systems used by car manufacturers. However, there are many after market code readers available that claim they work on "all" late model cars. I did see one on ebay last week asking $ 17,500, but it dodn't receive any bids. I know Ferrari uses an SD2 Diagnostic unit that is very expensive. I would like to know what is required to read the ECM codes on a 550, or any late model Ferrari for that matter.
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