FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

[stiloMjt]

Hi i have a fiat Stilo. i connect Fiatecuscan 3.6 with a ELM 327 1.3+ clone. all works fine, except for some functions that has strange behavior.

for Example steering wheel align : when start procedure and FES instruct to move steering on left after 1 sec without time to move procedure ends and FES return on main menu.

In this days i have some issue with alarm and i want to turn off. On FES Menu i have to input Electronic code and always receive "code not valid"(but i write original code from card).

Strange is that after three times i should have to wait 30 mins, but this is not true. i can try as often as i want.(always same error).

I don't understand if it is a FES issue or a ELM issue.

Thanjks for answer

[Alfa_147_Sele]

Hello everyone!!

Could any body help with ELM 327 USB adapter ?

How i understand, for can reading i need to remove chip R04 or R14 ?

In picture below, there is elm 327 board, i bought ver 1.5, but on board sign is ver 1.0 ???

Will it work, or i need to buy another one ?

I have the same unit and it connects to the engine and gearbox modules but no others.

I am considering correcting it but was going to remove R2 as this is the only 121 ohm resistor on the board.

[studiotrenta]

This is my interface.
Witch resistor must be removed?

Hi, have you found which resistor has to be removed?

[Yoyyava]

Hello everyone!

Firstly thanks for your help because time ago I was able to modify an old cable elm327 with your help and advices.

I am trying to have another one but I have received an strange circuit board which I have not found over here. Does anyone know it and can help me with it?

Your help would be very appreciated



Thanks in advance for your time, help and knowledge.