4200 SD2 Connection

esprits4s

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Could anyone tell me how the SD2 connects to a 4200 series car? I believe the SD3 connects using the EOBD port, but I've seen no documentation on how to connect a SD2.
 

Emtee

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Could anyone tell me how the SD2 connects to a 4200 series car? I believe the SD3 connects using the EOBD port, but I've seen no documentation on how to connect a SD2.

They both use the same OBD connection Esprit. Under the dash in the driver's footwell.
 

esprits4s

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Miles,
Thanks for the response. I looked through the WSM again, and see the EOBD breakout cable described in the 'Bleeding the Clutch' section to be used with the SD2.

Regards,
Gary
 
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Emtee

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Miles,
Thanks for the response. I looked through the WSM again, and see the EOBD breakout cable described in the 'Bleeding the Clutch' section to be used with the SD2. I wonder if it's possible to locate one of these or at least the pin out to make one...

Regards,
Gary

Hi Gary, that's a task you're setting yourself, as the SD interface is a complex piece of kit that talks to all the car's systems, many in relation to each other. Have you taken a look at Leonardo? They may have something to help you, though at a cost for sure...

http://www.leonardodiagnostictool.com/
 

esprits4s

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Yes, I agree. I've already purchased the SD2. This cable is missing, but I expect it to be supplied. The bigger question is learning to use the tool as information is hard to get. I'll have to decide how much use is worth keeping it, and it may depend on how much information I can find. Maserati obviously never made it easy to acquire manuals. We'll see. I'm going to play with it for a few months before making a decision. If I can learn how to use it for basic diagnostics and to set the PIS point to enable changing the clutch on my own, that by itself would be enough for me to keep it.

Regards,
Gary
'05 Coupe
 
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Biturbista

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Does anybody know if the Maserati SD2 car specific CDs can be loaded on a Ferrari SD2 Tester and vice versa?

Also, are there any differences in the hardware and/or interface cables between the Maserati SD2 Tester and the Ferrari SD2 Tester?

I am asking this because yesterday I installed the Maserati SD2 system software on a laptop and found that out of the two SD2 CDs which I have (one for the Maserati Spyder and one for the Ferrari 575M Maranello) only the modules on one of them (the Maserati Spyder CD) are accepted for loading onto the PC. It clearly does not accept the Ferrari modules despite the fact that the contents of the CD are setup in the same fashion. After some tweaking of the contents of the Ferrari 575M Maranello CD I managed the Maserati SD2 system to load the Ferrari modules as well. I wonder whether this would work as well on the actual SD2 Tester unit.

Unfortunately I do not have an SD2 Tester to play around with to verify the above as I merely bought the CDs to find out how the SD2 works and to reverse engineer the OBD error codes and the test procedures...
 
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Parisien

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Very interesting .....let us know how you get on, hoping one the guys will be able to help out


P
 

Emtee

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Where did you get the system software Biturbista? Do you have write as well as read?
 

Biturbista

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@Emtee: I recently bought both the Maserati SD2 system software (SW BASE) and the CD's for the 4200 Spyder and Ferrari 575M Maranello on eBay. What do you mean with 'write as well as read'? I just copied the contents of the CD onto my local hard drive and have been experimenting modifying the software code of some of the individual Ferrari 575M ECU diagnostic modules until I got the Maserati SD2 system software on my PC to recognize them and accept them for loading.

Since I know somebody in Germany with a Maserati SD2 Tester, I will check with him if the tester will actually accept the Ferrari ECU diagnostic modules after they have been tweaked by me.

If I even bump into an affordable SD2 Tester unit (either Ferrari or Maserati) in the near future I might pcik it up...
 

Emtee

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Hi Biturbista, thanks for the info. I meant can you change the cars parameters as well as reading them? Is it the ST5 software you have or something else?
 

Biturbista

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@Emtee: No, this does not have anyhing to do with either ST2 or Leonardo (to mention another tool).

The software is the official SD2 diagnostics software as supplied to the dealers by the Maserati factory. It was not developed in-house by Maserati but they outsourced this to Digitek. To my knowledge both the PC based SD2 software (which I have) and the 'hand held' SD Tester are required. Once a module is loaded into the SD2 Tester, I think the Tester can be used stand alone. But this would mean that the range of ECU's you can cover is very limited (mainly because of the lack of a lot of memory in the SD2 Tester). Loading the ECU modules into the SD2 Tester is one of the purposes of the PC software. I do not know whether some of the routines can be executed directly on the PC as with everything I do it keeps telling me the Tester is not connected.

I am unable to do any real diagnostics with the software, but it does reveal all kinds of things such as the ISO codes of the ECU's in question and the OBD error codes that the software can display (some of these are specific to particular Maserati and Ferrari models). As far as I can see, also the codes that the Tester should send to the ECU's are available in a more or less readable format. The next step is to install a 'serial port sniffer' on my PC to see what data is sent to the handheld SD Tester, maybe I can then find out how to fool the PC software into thinking the handheld is connected. The purpose of this whole excercise is mainly to provide me the information I need to communicate directly with the ECUs of these cars using generic diagnostics interfaces. The best way to do this is by analyzing the official factory tools...