FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

[ELIO65]

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IMG_20130325_094856.jpg (1.92 MiB) Viewed 4616 times

Eddy... Now?

[Alfaeddy]

Hi Elio65

Your pictures are not better

Why did you use a photo flash? No Flash please

Why do you take such great size (3250 x 2600)
800 x 600 is quite enough

A large size (pixels) is better

I need a picture of the board!
not off the table around it

Use a macro to take a picture
It is very fuzzy

Can you see anything on your images???


Greetings Eddy

[ELIO65]

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[Alfaeddy]

can not read the number of the Chip in an red frame ?

I think your Problem ist not the ELM

Control your Setting / Interfaces Setting / Com port /
and you can read your ECU

For ABS / Airbag / usw. you need an yellow Adapter

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[puntomjtd1234]

hello
I have a problem with the connection to the ECU with a Chinese clone bluetoth.
The connection bluetoth is ok and the interface is regularly recognized but when I try to connect to the ECU interface software warns you that the connection is impossible.
In addition, the test code AT brings a positive response or negative randomly
I attach screenshots (OBDII.docx) and photos of the device.

Thanks for the reply

[Alfaeddy]

Hello puntomjdt1234

Wich CAR / model / year want you read ????


I dont can read the number from the Chip in the yellow frame ??
And thr resistor in blue frame ???

You can remove the white plastik Connector from the Board ?



Greetings Eddy

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[puntomjtd1234]

Thanks Alfaeddy.
This evening I send photos with details that you asked me.
The car is a Fiat Punto 1.3 mjtd 2005.

[Alfaeddy]

Hello puntomjtd1234

If this is your Punto??

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Then you should be with your interface to connect to your ECU can produce without removing a resistor on the board.

The ABS should be read with green adapter without modifiktation

Send me other times images

Greetings Eddy

[puntomjtd1234]

Hello Alfaeddy
Yes,that it is my car.
The chip in the yellow frame is a MCP2551
The resistor in the blue frame is marked 473
Under the plastic connector there is the resistance R04 but I can not read the value.
To remove the white plastic connector I have to desolder it.
If you think it may help you understand I can do it.

Thanks again for your help

[Alfaeddy]

Hello

This ELM you can without modification and read your ECU with a green adapter also the ABS
If this is not possible there is a setting error

But for service reset, Body Composition, CAN setup etc., there may be problems
This resistor R04 he connects the two pins in the picture??

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If this is so?! remove R04

So you can read CAN bus protocol

Greetings Eddy