C3 1.4hdi Obd2 Connector

[Guest Andrew]

Hi,

 

A little while ago I bought myself an OBD2 connector, multi-protocol so it should talk to anything. I have tried it with 5 different cars which it worked on, at least one of them uses the ISO protocol which the C3 is supposed to use, but when I connect it to my C3 it can't connect. It gets 12v but that is about it.

 

So is it meant to work? I have heard reports of it working with the same car.

 

When I got the car I got a new key for it (which they made me wait two hours for) so I assume the connector worked then?

Could the dealer have done something to the connector so that only they could connect to it? I really don't trust them.

And has anyone else successfully connected to the same model with an OBD lead?

It would be useful because there are some fault codes there waiting to be read now. :)

 

Also, if I did get a connection, could I do a software update to the ECU myself (if it needed one)? I would hate to have to go to a garage to do something which I have the capability to do myself.

[iannez]

you would have to have a can lead for it to work on your car and you would not be able to carry out updates yourself. sorry m8.

[Guest Andrew]

I tried another lead tonight, although it is basically the same as mine (ELM 327).

It can do CAN (haha) but it can't connect to my car. I even tried all 9 protocols (or variants of) manually but none worked.

 

Apparently the ELM327 can do: CAN (ISO 15765-4), SAE J1850 PWM, SAE J1850 VPW, ISO 9141-2 and ISO 14230-4.

[Guest Andrew]

There are some diagrams here giving the pin numbering scheme for the OBDII connector. Mine (which is mounted the other way up from those pictures) has pins 1, 2, 4, 5, 7, 11, 12 and 16 present.

Can anyone else see if theirs is the same?