FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

[cxem]

bozza,
BK3231Q + MCP2515 + TJA1040 = This is bad
ELM-327(PIC18F2480) = Ok
ELM-327(STM8) "VGATE ICAR2" = Ok

http://forum.cxem.net/index.php?showtopic=144556

[bozza]

bozza,
BK3231Q + MCP2515 + TJA1040 = This is bad
ELM-327(PIC18F2480) = Ok
ELM-327(STM8) "VGATE ICAR2" = Ok

http://forum.cxem.net/index.php?showtopic=144556

txh

[aparty]

Hello Aparty

Your interface is the same as the ELM of Tamso
Therefore you need to remove the same resistor (121) to
to make your interface CAN bus capable of MES,

Greeting Eddy

Thanks Eddy for your support.
I'm going on to remove that resistor.
I'll update as soon as possibile.

One info: after removing that resistor, ELM327 will work with other software or it will work with MES only?
Thanks!

Hello Aparty

Yes


Up to the version v1.3 ELM Interface
was not built this bridge resistor.
And this interface could also use other software.

Greeting Eddy

Just to say you I removed the resistor, but I had the same problem: I can comunicate to Engine ECU only!

Why?

Aparty

[tony088]

Hi,i have a problem with multiecuscan and elm327 v1.5 usb. I want to connect to ECU of alfa 147 1.6 105 cv,but i receive this error:connection failed,timeout operation. Check the settings of the com port, pin EOBD adequate.I tried to change the speed but I have not solved. Elm327 has chipset ch340 . This is test interface connection:
Command: ATZ
Response: ELM327 V1.5 >

Command: ATI
Response: elm327 v1.5>

Command: ATE0
Response: ATE0OK>

Commando: ATL0
Response: OK>

Command : ATH0
Response: OK>

Command: ATSPC
Timeout operation

[ziopalm]

Hi.. same problem with alfa 159... someone can help us?

[Alfaeddy]

Thanks Eddy for your support.
I'm going on to remove that resistor.
I'll update as soon as possibile.

One info: after removing that resistor, ELM327 will work with other software or it will work with MES only?
Thanks!

Hello Aparty

Yes


Up to the version v1.3 ELM Interface
was not built this bridge resistor.
And this interface could also use other software.

Greeting Eddy[/quote]

Just to say you I removed the resistor, but I had the same problem: I can comunicate to Engine ECU only!

Why?

Aparty[/quote]


Hello

Do please have a picture of the board
and again a screen from Interface Test

Greeting Eddy

[btibor76]

I found a quick and dirty solution:

• Bought the cheapest ELM327 interface from eBay (actually V1.4)
• Disassembled and found I had the board below.
• Using a craft knife I carefully destroyed the 120ohm resistor (R04 on the board). Be careful you don't damage R17 just beneath it.
• Resembled and it works a treat!

hang around for everyone especially those who invented this forum had I applied to give up hope that I will ever be able to do has been tried everything to me Fiat Bravo 1.9 Multijet 8v is and has been to you thanks to say the clima control we do not know yet achieved any anyone has idea ?? ?

[ragezor]

Hello, I've bought this ELM intarface. It is v1.5

http://www.aliexpress.com/item/Auto-Dia ... 86486.html

I've tried it on two cars: honda accord 2005 and nissan juke 2015. It does not work on both of them.

Code: Select all

[obd] ========================== python-OBD (v0.4.0) ==========================
[obd] Explicit port defined
[obd] Opening serial port '/dev/rfcomm0'
[obd] Serial port successfully opened on /dev/rfcomm0
[obd] write: 'ATZ\r\n'
[obd] wait: 1 seconds
[obd] read: 'ATZ\r\r\rELM327 v2.1\r\r'
[obd] write: 'ATE0\r\n'
[obd] read: 'ATE0\rOK\r\r'
[obd] write: 'ATH1\r\n'
[obd] read: 'OK\r\r'
[obd] write: 'ATL0\r\n'
[obd] read: 'OK\r\r'
[obd] write: 'ATSPA8\r\n'
[obd] read: 'OK\r\r'
[obd] write: '0100\r\n'
[obd] read: 'SEARCHING...\rUNABLE TO CONNECT\r\r'
[obd] write: 'ATDPN\r\n'
[obd] read: '0\r\r'
[obd] Connection Error:
[obd]     ELM responded with unknown protocol
[obd] Failed to connect

This is python obd library communicating with the ELM interface. It seems that connection to the computer works just fine, but connection to the car does not. Has anyone discovered how to repair this interface maybe? I can provide pictures of the board if needed.

[ragezor]

Here are the pictures.

http://shrani.si/f/1P/9F/1KNohQB3/img20151205155233.jpg
http://shrani.si/f/f/Bc/1PnJ0mo/img20151205155252.jpg

[cxem]

ragezor. Hello.
You have an adapter on a new chip STM32(U5)
What CAN-driver(chip U2)?
What is the USB-driver?

Bad, there is no stabilizer +5v(chip U1)

Thank you for pictures
I need to pictures mainboard(CY-B09_ST)