Found the little culprit that prevent the software from performing the automated car detection. During the freeze frame reading, Iv only got it setup for ECUs that have freeze frame codes.. I didnt know what happens when no freeze frames exist!
Eg:
Found: 7E8 03 7F 12 78 00 00 00 00
Found: 7E8 03 52 01 00 00 00 00 00
So we have our standard 7F 12 78 meaning Im slow.. wait a moment... and then the proper answer.
So it looks like, 03 52 01 00 simply means theres no fault codes available.
I am curious if when 1 freeze frame exists.. if this will be one a single frame as well.... Will have to try faking it to the tech2 maybe.
Software On ELM Street - OBD2 Software Development
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Tazzi
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Re: ELM327 Software Development
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Tazzi
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Re: ELM327 Software Development
Decided to see what was behind door number 1.. and this is what we see on a E55 pcb... wasnt too surprised to see no eeprom. Although I dont see any recognizable chips or even writing there. 
(Iphone image so its not the best!)
(Iphone image so its not the best!)
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Your Local Aussie Reverse Engineer
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Mob:+61406 140 726
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Holden202T
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Re: ELM327 Software Development
getting pretty high tech these days!
No matter what the question is, the answer is always more horsepower! 
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Basic tuning of a delco ECM with $12P thread
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Advanced tuning of a delco ECM with $12P thread
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Tazzi
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Re: ELM327 Software Development
True that!. Little bastard has so much hot glue used on it, took a good 20mins+ just to scrap it off and open it up. I was hoping to be sneaky and find some sort of eeprom. But guessing everything must be locked away in internal eepromsHolden202T wrote:getting pretty high tech these days!
If I can find our high res camera, Ill try get a better image of the main cpu.
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Charlescrown
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Re: ELM327 Software Development
Did the glue have wires in it? Maybe the glue is the eprom.
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Tazzi
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Re: ELM327 Software Development
You can see in the image (kinda) random stray wires going into the casing. Covering that entire area is a sticky glue type substance. You can see the glue compared to the ecu casing up on the right side where is kinda wavey as well as at the button right.Charlescrown wrote:Did the glue have wires in it? Maybe the glue is the eprom.
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Charlescrown
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Re: ELM327 Software Development
Man it's amazing what they can do with so little these days. Is that a CPU surrounded by all those parked cars?
Maybe there's more underneath the board
Maybe there's more underneath the board
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Tazzi
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Re: ELM327 Software Development
Looks like google Earth.. Like a big square shopping mall with 100's of cars and a few fast food places dotted aroundCharlescrown wrote:Man it's amazing what they can do with so little these days. Is that a CPU surrounded by all those parked cars?
Maybe there's more underneath the board
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antus
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Re: ELM327 Software Development
High tech or low cost? Or both...
Have you read the FAQ? For lots of information and links to significant threads see here: http://pcmhacking.net/forums/viewtopic.php?f=7&t=1396
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slewinson
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Re: ELM327 Software Development
I suspect that these are earth wires going by the gauge and distribution.Tazzi wrote:You can see in the image (kinda) random stray wires going into the casing. Covering that entire area is a sticky glue type substance. You can see the glue compared to the ecu casing up on the right side where is kinda wavey as well as at the button right.Charlescrown wrote:Did the glue have wires in it? Maybe the glue is the eprom.
Simon