FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

[Alfaeddy]

Hello

It is true, the thread is now very large, so that one can hardly find anything.

Which vehicle control and you want to read?
Because it should not be Read the CAN controller is not the whole error
Is on the board I can find no bridge resistor
But I can only follow the bad tracks.

Greetings Eddy

[Greatjoe]

Hi,

I have a FIAT Stilo 1.4.

I can read the engine, and see the stats but it always brings up an error when connecting to the body computer.

I need to reprogram keys and also reset the service module

Thank young

[Alfaeddy]

Hello

I need a better picture from the Board
Please make a Photo with makro settings in your Kamera


Greetings Eddy

[senzapalle]

hi, ok on this hardware modification.
good job.

perfect

rsz_dsc_0166.jpg (254.28 KiB) Viewed 5064 times

[Greatjoe]

Hi,

I just tried the above but it still doesn't connect to any other module other than the engine.


Eddy, is the photo above adequate or do you still want me to make a more detailed one?


Because I have already removed one resistor, would it still work removing another.


Could it be port setting affecting the adapter? I have tried COM11 and COM17 both at speeds of 115,000/38,000 and 9600 speed.

[Alfaeddy]

hi senzapalle

Are you sure that it is this resistor?
I can not see the connection of a pin to 6 & 7 of the
MCP has 2551 chips

Have you tested it??
Or is it just a guess??



hi Greatioe

I need to know how the assignment of the CAN bus line is Singal
Please do not just remove a resistor on the board only because
which has the same size!

Greetings Eddy

[Greatjoe]

Hi Eddy,

Here are some more detailed photos.

Hope these are OK.

http://i1336.photobucket.com/albums/o64 ... 0c0741.jpg

http://i1336.photobucket.com/albums/o64 ... 6e7dd9.jpg

[Alfaeddy]

Hello Greatjoe

Unfortunately your new pictures are not better
Uses a macro
made with lightning light, characterized the flash reflects on the board
and can detect even less.

Another user has better pictures in this thread

viewtopic.php?f=5&t=3860&p=12880#p12880

But if I can not see anything magnify this.

I can not even see where is the white plug, pin 6 and pin 14?

If I had such an interface I could check it myself?

Greetings Eddy

[Jordandc]

Greatjoe you solved problem? I have the same interface.

[Alfaeddy]

Hello Jordandc

No not yet, it is not possible for me about the pictures
To follow the circuit traces and the CAN bus line
visible.
The webs extend on the top and on the bottom

Greetings Eddy