Hello Everyone!

Sorry if this thread is banging on about a previous post, but I'm having the usual Fiat Airbag light woes!
I am trying to connect to the Airbag ECU with a Vagcom KKL with 3 pin adapter.
The settings for the various COM ports on the computer are OK as far as I know, but the ECU scan software doesn't seem to be able to get a response from the airbag ECU!
Has anyone managed to get the software working or do you have to buy a version of the software (I'm using the free version).
I thought about trying to connect the unit to the engine ECU, but can't seem to locate the plug!
Any help will be gratefully appreciated!
Thank you!

multi- or fiatecuscan can only acces engine ecu and abs.
I have explained everything that you need to do in the following posts
https://www.fiatforum.com/barchetta/326382-air-back-alarm-light-after-seat-removal-2.html

btw: the engine ecu is the cable in the right corner. you need to take off the right plastic sill and you'll find it behind the floormat in the right front corner just sitting loose.

Do you have an obd cable with the dip switch on it?

bollie69 said:

multi- or fiatecuscan can only acces engine ecu and abs.
I have explained everything that you need to do in the following posts
https://www.fiatforum.com/barchetta/326382-air-back-alarm-light-after-seat-removal-2.html

Click to expand...

Just a minor comment. Fiat ECUScan/MultiECUScan CAN access some Barchetta Airbag ECUs, but only for certain on the later models with the EOBD connector.

We all need to be careful when stating what will and not will not work and be very specific regarding exact vehicle model and year, and if required down to chassis number detail.

Hi bollie69 & s130!
My OBD doesn't have any switches on it, so I am guessing that it doesn't have the dip switch you mentioned in your post. Sorry if I sound like a newbie! This is my 1st stab at OBD!

s130 said:

Just a minor comment. Fiat ECUScan/MultiECUScan CAN access some Barchetta Airbag ECUs, but only for certain on the later models with the EOBD connector.

We all need to be careful when stating what will and not will not work and be very specific regarding exact vehicle model and year, and if required down to chassis number detail.

Click to expand...

And you can access this database with chassis number details regarding exact vehicle model and airbag ecu model?

Btw if you want to be correct the later models have the EOBD2 connector.

barc2012: please try with the software mentioned in the other posts. Give it a try.
Let us know if it works with the cable without the dip switches.

bollie69 said:

And you can access this database with chassis number details regarding exact vehicle model and airbag ecu model?

Click to expand...

Hi bollie69

Are you asking about a database or stating a database?

If stating then I don't recall/see a databse link being posted (other that ePER)

bollie69 said:

Btw if you want to be correct the later models have the EOBD2 connector.

Click to expand...

Actually there is no such thing as an EOBD2 connector.

A fairly concise description of the lay of the land regarding OBD, EOBD, OBDII and EOBD2 can be found here: http://www.gendan.co.uk/article_5.html

Early Fiats had the 3-PIN connector which is in fact a general OBD connectors. European OBD (EOBD) standardised on the 16 PIN connector.

EOBD2 still uses the same 16 PIN connector but manufacturers are permitted to use non standard pins for any manufacturer specific test facilities.

The whole OBD/EODBD ..... ODB, ODB2 ..... etc is a bit of a messy playing field so it is easy for all of us to get often confused.

Nick

s130 said:

Actually there is no such thing as an EOBD2 connector.

A fairly concise description of the lay of the land regarding OBD, EOBD, OBDII and EOBD2 can be found here: http://www.gendan.co.uk/article_5.html

Early Fiats had the 3-PIN connector which is in fact a general OBD connectors. European OBD (EOBD) standardised on the 16 PIN connector.

EOBD2 still uses the same 16 PIN connector but manufacturers are permitted to use non standard pins for any manufacturer specific test facilities.

The whole OBD/EODBD ..... ODB, ODB2 ..... etc is a bit of a messy playing field so it is easy for all of us to get often confused.

Nick

Click to expand...

nice find. I thought it was only obd and obd2.
A quick google search gave me some intel but seems I didn't find half of it

Pleased you found the Gendan article informative. I'm sure there are also other twists and turns to keep up all on our toes.

As a moderator of the MultiECUScan website I get so P*..ed off with all the so called cheap Chinese ELM devises that just fail to work with FiatECUScan/MultiECUScan.

Somehow the market place has got very confused and muddled with this whole ELM, CAN, OBD, EOBD ....... etc. To add salt to the wound the cheap clone devices from China are just pumped to websites and outlets as "suitable" with supporting fancy marketing words about compatibility, functionality and other claims that later prove to be false.

Moving back to the main Barchetta Airbag ECU question then I'm personally getting confused

The reason I say this is that I've researched all airbag ECU's on my copy of ePER and the part number supercede lists shows 3 (I think I recall 3) distinct part numbers. I'm assuming that all of them can be read by appropriate software which makes me wonder why FiatECUScan/MultiECUScan can not read all of them given the correct interface connection (3-pin or 16 pin).

Sadly I don't personally have 3 Barchetta's to try and get to the bottom of this.

You know I've just read the previous post three times and didn't understand a word of it at any reading ...well, apart from some of the easy ones. I'm really glad I've got a good mechanic...

Crachat said:

You know I've just read the previous post three times and didn't understand a word of it at any reading ...well, apart from some of the easy ones. I'm really glad I've got a good mechanic...

Click to expand...

Are you refering to my S130 post? / posts? and if so which one and I'll try to clarify & rewrite it. Wouldn't be the first time my fingers were several paces behind my train of thought

S130, no criticism of the post or content, I just don't understand the content which is purely a comment on my not understanding modern car electrics! I knew where I was with a distributor, rotor arm, coil leads and plugs...well, mostly. If you wanted to p*ss someone off mightily then a line drawn in pencil from the top of the spark plug to the cylinder head could cause hours of amusement/anguish depending on if you were the drawer or drawee!:devil:

Not that I ever did that sort of thing of course . Ahh, the good old days of external bonnet catches.

My apologies for going off subject, it happens with age.

Barchetta2012, whereabouts are you? I have kit which will do the job in Teesside.

Sorry for no reply to my whereabouts HP! I'm in Devon!
Just an update that as my Barchetta is a 1997 one, the MultiECU won't reset the airbag light. I think it will work on 1998 onwards cars.
The garage which has now gone, unfortunately, used to lease a Technotest from a place in Taunton, so this my next route!
It will be a shame when the light's off-it's like a friend!

I've just been trying (for the first time) to reset my airbag lights, and I have got lost completely now.
I have a 2000/1 car, with the 16 pin socket under the drivers seat. I have multiecuscan, and a blue VAGKKL cable with a switch (KKL/engine airbag ABS options)
I have managed to make a connection to the ecu by selecting the aspirio engine option (not CF3) with the switch on ECU , however there is are no errors shown, and nothing about the airbags.
If I select any of the airbag options on ecuscan, it will not connect, no matter what the switch is set to

any clues / ideas?

thanks

John

ps more than happy to buy the full version if I can get this working!

Hi Johnv,
Are you still out there? Did you ever resolve the connection problem?

Just to confirm, I have just successfully deleted the airbag error in a late 97 Barchetta using the method linked in post #2 of this thread (VAG KLL + 3 pin adapter + trw2scan software).
So thank you bollie69 for the files and description!

I've just cleared airbag/seat belt tensiner errors using free version of multiecuscan and VAG KKL cable.
My car is registered in 2001 so i have the 16 plug under the drivers seat.
I bought a KLL cable and all the colored adapters and even the 3 pin one too. In the end I just had to switch the KLL cable to airbag mode and plug it under the seat to make it work.


Anyways I just wanted to post this in case someone else is as confused about this as I was.

mikah said:

I've just cleared airbag/seat belt tensiner errors using free version of multiecuscan and VAG KKL cable.
My car is registered in 2001 so i have the 16 plug under the drivers seat.
I bought a KLL cable and all the colored adapters and even the 3 pin one too. In the end I just had to switch the KLL cable to airbag mode and plug it under the seat to make it work.


Anyways I just wanted to post this in case someone else is as confused about this as I was.

Click to expand...

Posting this on as many threads as I can to help others.
I managed to connect to my ecu but only with the help of this chap from ebay

cwautodiagnostics​

I contacted him to confirm which cables I needed for my car, these - https://www.ebay.co.uk/itm/144489808013, then bought them from him

Crucially for me as my IT skills are limited, he offers tech support. He even offers remote access support. He logged into my laptop (numerous times), to help me get connected to the air bag ecu.
My big issue was I couldn't connect to the ecu, this ultimately was due to a USBC to USB adaptor blocking the signal.
I used my sons laptop with USB and we got it working.
I cannot praise this chap enough, it took a few days and in total a few hours to resolve all the issues and get the connection to work, the port setting etc alone are minefield!
All for less than £20