FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

multiecuscan program usage help
mattydr67
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Location: Bucuresti, Romania
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Re: FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

Post by mattydr67 » 18 Oct 2023, 11:45

If you do not remove the resistor you will not be able to connect to CAN BUS controlers.
So use a multimeter ( ohmeter ) to check if the resistor is there 120 ohm between CAN BUS pins 6-14.
If there is you have to remove the resistor. If there isn't any resistance between OBD2 pins 6-14 ( on your interface ) you haven't that resistor.
Adaptors are used to connect to other CAN BUS controlers on other pins as 3-11, 12-13, 1-9 and other k-line controlers then one on pin 7
No adpators you will be able to connect only on CAN BUS pins 6-14 and k-lin pin 7.
Good luck

Bachus777
Posts: 1
Joined: 19 Oct 2023, 21:35

Re: FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

Post by Bachus777 » 19 Oct 2023, 21:48

Good morning everyone :D

please help - which resistor blocks the CAN connection. Specifically, I want to make a Ducato.
Maybe you could help me for a moment? Thank you.

https://i.postimg.cc/Y08DSMLx/1.jpg

https://i.postimg.cc/2SXpwF6x/a.jpg

https://i.postimg.cc/1twLskKW/b.jpg

https://i.postimg.cc/tgLK0qFZ/c.jpg

Mihamano
Posts: 1
Joined: 06 Nov 2023, 17:35

Re: FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

Post by Mihamano » 06 Nov 2023, 17:58

:) Hy,everyone! I am new here,and I have problems with my elm 327, is not connecting with ecu(panda 1.2 from 2011) I understand I have to remove an resistance from the piece! I have an B18-3 YMIOT V1.5! If anyone is so kind to give me same help! I attached some pictures of the piece I have! Thanks! :D :D

Darsh
Posts: 3
Joined: 17 Nov 2023, 12:58

Re: FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

Post by Darsh » 26 Nov 2023, 16:14

tzok wrote:
10 Dec 2010, 21:59
I've got 2 ELM327 interfaces, both labeled as 1.5a, but they differ even in the way they blink the LEDs during the power init procedure. None of them don't want to connect to my Grande Punto when using SCANTOOL.NET (I've set vendor ID to SCNATOOL.NET via terminal AT@3 command). I've borrowed an identical to one of my own interface from a friend of mine and it worked just fine. All interfaces worked fine with ScanMaster-ELM. Unfortunately I had to give it back before the FES v.2.6 was released. None of mine ELMs did connected using 2.6, but both work with 2.6.1?!? I didn't tried it with registered version, but FREE opened a connection, so I assume it will work (hope so, because I've just bought FES).
The intricacies of ELM327 interfaces and their compatibility can be perplexing. Your detailed exploration, including adjustments via terminal commands and varying results with different software versions, highlights the complexities users might face. It's encouraging that FES v.2.6.1 seems to provide a working solution for your ELMs, adding a positive note.[

Presharatin
Posts: 1
Joined: 28 Nov 2023, 10:59

Re: FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

Post by Presharatin » 28 Nov 2023, 11:21

Hello,

I have a elm1.5a cable and am having issue connecting to my Giulia using MultiECUScan. I have tested the connection using MultiECUScan and get an error: WARNING: this interface is not compatible with ELM 327 1.3!

I have tested the resistance between pins 6 and 16 and I get 120, so I think I do have the resistor.

Please can someone let me know which resistor on this board type I need to remove

[url=https://ibb.co/kgpYCy0]Image
[url=https://ibb.co/4FBN5DD]Image
[url=https://ibb.co/FJjrzc0]Image

Andrej19
Posts: 3
Joined: 07 Dec 2023, 19:47

Re: FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

Post by Andrej19 » 07 Dec 2023, 20:55

Does anyone know what is the last version of driver for the PL2303, i recently bought a ELM327 usb and it has that chip. So im wondering what is the last version of drivers that windows 10 still supports. And if anyone know which resistor should be removed on the elms with pl2303 chip, Thanks...

shpuncik
Posts: 306
Joined: 19 Oct 2018, 16:43

Re: FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

Post by shpuncik » 08 Dec 2023, 09:48

Andrej19 wrote:
07 Dec 2023, 20:55
Does anyone know what is the last version of driver for the PL2303, i recently bought a ELM327 usb and it has that chip. So im wondering what is the last version of drivers that windows 10 still supports. And if anyone know which resistor should be removed on the elms with pl2303 chip, Thanks...
on official Prolific website there are drivers for PL2303

Andrej19
Posts: 3
Joined: 07 Dec 2023, 19:47

Re: FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

Post by Andrej19 » 08 Dec 2023, 15:01

shpuncik wrote:
08 Dec 2023, 09:48
Andrej19 wrote:
07 Dec 2023, 20:55
Does anyone know what is the last version of driver for the PL2303, i recently bought a ELM327 usb and it has that chip. So im wondering what is the last version of drivers that windows 10 still supports. And if anyone know which resistor should be removed on the elms with pl2303 chip, Thanks...
on official Prolific website there are drivers for PL2303
I found the right driver, the latest drivers on ther site dont work. It says phased out since 2012, i found another driver from 2008 which works now i only need to figure out what resistor i need to remove.

Andrej19
Posts: 3
Joined: 07 Dec 2023, 19:47

Re: FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

Post by Andrej19 » 08 Dec 2023, 17:13

Image
This is how my ELM327 Looks, how do you modifie this if its possible, i havent seen one till know on this forum.

mattydr67
Posts: 169
Joined: 02 Apr 2010, 17:07
Location: Bucuresti, Romania
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Re: FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

Post by mattydr67 » 21 Dec 2023, 13:35

Share the other side of the PCB too
Good luck

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