FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

[Good 198]

Hi. I'm another Italian and another more modest English writer.

I recently purchased an ELM , I have a Fiat Bravo198 1400cc 16v .
Wen I have connected the ELM usb to PC for the first time , the same PC will download the driver with windows up-dates .
I haven't inserted the CD with the driver and instal it , because Win.up-date make this in automatic .
I check the Com on PC and in Fes , I do the test with FES and I don't see faults in the Test , Maybe :
COMMAND: ATZ
RESPONSE: ATZELM327 v1.4>

COMMAND: ATI
RESPONSE: ATIELM327 v1.4>

COMMAND: ATE0
RESPONSE: ATE0OK>

COMMAND: ATL0
RESPONSE: OK>

COMMAND: ATH0
RESPONSE: OK>

COMMAND: ATSPC
RESPONSE: OK>

COMMAND: ATS0
RESPONSE: OK>

COMMAND: ATCAF0
RESPONSE: OK>

COMMAND: ATCFC0
RESPONSE: OK>

COMMAND: ATCRA 7B0
RESPONSE: OK>

COMMAND: ATSH 7B0
RESPONSE: OK>

COMMAND: ATAT1
RESPONSE: OK>

COMMAND: ATST41
RESPONSE: OK>

COMMAND: ATBI
RESPONSE: OK>

This interface is compatible with ELM 327 1.4! Should connect properly with all CAN modules.

Then I try the star key on Bravo in MAR position and engine off, don't make the start motore bat take the key on MAR.
I have Connected the ELM on the connector of body panel and the software are connected to the electronics car engine .....

motor control

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Electronics of the "Body" and "Reset Sevice" , I can't connected to it because it gives me this (italian) screen....

Body and Reset Service

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Open the ELM, and I know the 120Ω resistor in parallel to the line hight-low canbus , in the R04 near and conected to the pin of the PCB connector that goes to pin 14-6 of OBD connector .

R04

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You think that if I intervene on the line canbus as described in this topic (or the first topic) , I resolve

Bye-Bye !!

[Alfaeddy]

Hello

Right, you have these 120 ohm resistor (R04) and remove
then you should connect to your service, body manufacture etc.
can

Greetings Eddy

[ceker]

hello i have problem with elm 327 1.4 fiat ecu scan can`t find the interfaces.? it search on "port 10" on vich is elm instaled but don`t find anything..

when i manual set-up the parameters (port, speed, model of elm.....)
it write:
COMMAND: ATZ
The operation has timed out.

obd 2 find normal.
elm 327 don`t, on friends notebook interfaces working normal with windows 7, on my notebook on pc with windows xp don`t.

[yani]

"The operation has timed out. " usually means that the port speed is not correct!
Try with different port speed... 9600, 38400, 115200...

[ceker]

we try different speed but nothing changed.. can the problem be in windows or sp pack for xp or what.?

[ceker]

i try 101 combinations of speed, ports, drivers.....

on the end i instal 52423943432 version of win xp, download sp3, download drivers for elm and obd from ftdi, instal interface, download fes 3.3 start testing and find kl conection (i plug elm 327 in notebook), i was happy as newer, plug the elm in the car star test again and fes find the elm 327 and its working gooood.!

problem is fix, how i don`t know.!

i know that i buying full version right now.

[CapSpaulding]

I have seen some cables on ebay with 1.4 version does that work on a Fiat Doblo 1.3Mjet?
I'm a bit confused by the info here.

Maybe the site should sell its own cables, so those can be trusted 100%

[gerryd]

Please can someone help with my board layout? I have the same issue as the rest. I will greatly appreciate it!

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[Alfaeddy]

Hello

Unfortunately, your picture from the top of the board made ​​the wrong side
I can not understand the resistance R04, which is of the third pin
the connector covers.

I guess he has a resistance of 120 ohms and connects, the
Pins 3 and 4 of the connector
because they go to the bottom of the MCP2551 and connect its ports
6 + 7

This resistance and remove your ELM also works in the CAN bus system
Or do not you a picture of the other top side to be sure.

Greetings Eddy

[gerryd]

thanks, I removed the resistor though just now and was able to connect but when trying to do proxi allignment, it comes back and says error, is this a fault on the ECU?