FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

[EddyDj]

Hi Eddy,
unfortunately I can not unsolder the board, but the photos I sent you do see it in all angles.
The only resistors under the board are: R5 (473 ohms), R6 (103), R7 (103), R16 (102), R17 (102).
It could be r5?

[Alfaeddy]

Hi Eddy

Too bad, maybe I can take some pictures of the users from the other forum.
let's see

R5 can not be
If a bridge resistor is present, the imprinted 121 or 1200

But I can think of another
measure times with a multimeter between pin 6 and pin 14 the Ohm value

So you can test whether a bridge resistor is present.

Greetings Eddy

[EddyDj]

Hi,
I measured between pin 6 and pin 14 , and indeed the value is 120 ohms. so there is resistor . now we have to find the bastard resistor
Greetings

[Alfaeddy]

Hi Eddy


Comparisons times the interface in the image with your
in this I marked the bridge resistor.

What imprint has the resistance in your
ELM Interface ??

Greetings Eddy

IMG_20141003_233836 markiert.jpg (128.39 KiB) Viewed 5416 times

Edit:

Look on page 144 there is the same board as in your interface

Greetings Eddy

[EddyDj]

Hello Eddy,

unfortunately there is not that resistor in my interface

[EddyDj]

Hi,
I have found that there are resistors under the tab at the bottom ( as I indicated in the figure) , where they attack the 16-pin ! how can I get them ? come off the 16 pin from the plastic ?
Greetings

IMAG1822.jpg (736.29 KiB) Viewed 5411 times

IMAG1823.jpg (664.66 KiB) Viewed 5411 times

[EddyDj]

I solved it! The resistor was under, and not to unsolder everything I removed the plastic under the pin to access it and I removed the resistor. Now everything works perfectly! Eddy Thanks for the advice.
Greetings.

IMAG1825.jpg (806.07 KiB) Viewed 5401 times

[zafron]

Hello Alfaeddy

Can you help me with this interface, please? Which resistor should I remove? Thank you.

[Alfaeddy]

hello

Remove the white (8 times) plug housing
And make a picture of it

Which vehicle ???


Greetings Eddy

[zafron]

My car is Fiat Punto mk2 1.2 16v 2000.