FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

[Alfaeddy]

Hello Laserbit

If you can only connect to ECU, ABS and Steering
an error in your connections of the switch must be present!

For all other controllers in Mito be read via pin 1 and pin 9

Eighth again on the pin 1 and pin 6 switch
and pin 9 on the 14 pin


Greetings Eddy

[laserbit]

So I need to check if the connections between the board and OBD connector. Do you have the correct pinout (from 1 to 8 of the circuit)?

edit.. I found this: http://imageshack.us/photo/my-images/14/74476962.jpg Could you double check if it is correct? So I will check if it mine is the same.


Thanks!

[Alfaeddy]

Hello Laserbit

(from 1 to 8 of the circuit)?

This information is wrong, not pin 8

What are the components in the red frame??
Have you added these components???

Remove this! This is wrong!

And also remove the lines with the red X, but you had already recognized.

Unbenannt markiert.jpg (28.24 KiB) Viewed 7034 times

Greetings Eddy

[laserbit]

Obviously the parts marked with X are the orginal connection that I removed with the Switch introduction, the other components are for the old ELM327, mine has such components already integrated on the back of the board. Now I tried to solder the wirescoming fro the board on pins 5 and 6 directly on the OBD pins 1 and 9, in order to exclude a switch malfunction. I will keep you updated on the test result!

[Boris]

Hi Eddy man,

Few questions for you:
- do you have experience regarding ELM 327 WiFi OBD interface?
- did you manage it to work with MES?

I have clone elmWIFIobd and it works with AOBD but not with MES.
In test mode everything is perfect but in real connection does not work...

I am using Wi-Fi and it works perfectly, check my posts when I was asking help for removing resistor. I was using ver 1.3, did not made the upgrade to 1.4 yet.

[laserbit]

Does your switch to a high internal resistor??

Hi Alfaeddy,
finallly I found the solution! i soldered the wires directly "crossed" and everything worked properly, so I need to trash my switch and find one with a low impedance... You were 100% right..! Thank you, I was finally able to reset the service on my car!!

[Alfaeddy]

Hi Laserbit

Ultimately, it could only be the switch too!

Nice that you know what was wrong now

Greetings Eddy

[alfa156sarajevo]

Hi Eddy man,

Few questions for you:
- do you have experience regarding ELM 327 WiFi OBD interface?
- did you manage it to work with MES?

I have clone elmWIFIobd and it works with AOBD but not with MES.
In test mode everything is perfect but in real connection does not work...

I am using Wi-Fi and it works perfectly, check my posts when I was asking help for removing resistor. I was using ver 1.3, did not made the upgrade to 1.4 yet.

So your wi-fi elm interface is working with mes without any problems?
I know problems regarding resistor... Did test it before and after removal...
I have to test it with 1.4 version...

[Boris]

Hi Eddy man,

Few questions for you:
- do you have experience regarding ELM 327 WiFi OBD interface?
- did you manage it to work with MES?

I have clone elmWIFIobd and it works with AOBD but not with MES.
In test mode everything is perfect but in real connection does not work...

I am using Wi-Fi and it works perfectly, check my posts when I was asking help for removing resistor. I was using ver 1.3, did not made the upgrade to 1.4 yet.

So your wi-fi elm interface is working with mes without any problems?
I know problems regarding resistor... Did test it before and after removal...
I have to test it with 1.4 version...

Yes I have tested it after removing resistor and it works OK

[acafaro]

Hi, I have a V1.5a ELM327 with which I can communicate only to the engine. What do I have to change to enter the body? I attached the photo.