FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

[Alfaeddy]

Hello Dean 21

The Resistor R1 has nothing to do with the CAN bus problem!

Remove R2 and your Bluetooth ELM is able to read CAN with MES

Greetings Eddy

[dean21]

Thanks Alfaeddy

[Gatter]

Still waiting for my new ELM cable. It needs to arrive in few days..

[Alfaeddy]

Just at the time
Christmas and New Year's Eve will take the Shipping often longer


Greetings Eddy

[anonimo76]

hi ..... confirmed this change for BT mini elm?
Thanks and Happy New Year

[Alfaeddy]

Hello anonimo76

And Happy new Year


Yes this Resistor is the right one



Greetings Eddy

[Chuckster]

Hi all,

I have read many of the posts on this subject but for the life of me I can't work out how to split the casing of my OBII ELM327 WiFi interface.

It is a simple black plastic box, but when I remove the label to expose the screws, no screws!

I have tried to force it with a knife but no joy.

Has anyone come across this, I only recieved it today so I guess the latest model, having the typical access to Can bus problems.

Cheers

Chuckster

[Alfaeddy]

Hello Cuckster

Under the label are no screws?

Is it a mini ELM?

A picture of the interface would be useful

Greetings Eddy

[tac51415]

Hi everyone !

I'm from France, and i just bought an ELM 327 Metal with the 1.4 Firmware in a French retailer.
I have an Alfa Romeo 159 2.4 Jtdm Automatic, connection to the ECU and gearBox is ok, but body computer, dashboard, and almost else don't works. I had a platic elm 327 few month ago, It worked fined without modification (Alfa 159 & Fiat Croma 2.4 OK), but it used to work.

I think I found the good resistor (R04 just near the MCP2551), but i wanted to be sure ! I tested with the multimeter, it gives 118 ohms






Thanks in advance for your help!

[Chuckster]

Hello Cuckster

Under the label are no screws?

Is it a mini ELM?

A picture of the interface would be useful

Greetings Eddy

Solution found, it appears the case was glued, screw holes were there minus screws.

I used small cutting disc to release seal, now to modify