Settings for serial connection

Multiecuscan usage help and guides
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buellboy
Posts: 7
Joined: 29 Jan 2011, 22:17

Settings for serial connection

Post by buellboy »

Hello all! I have an '96 Alfa 145 2.0L with the bosch motronic 2.10.x ECU (some of you may have seen it on the dec' 2010 cover of Classic and Sports Car :D )

I am trying to reset the aribag light on the dash.

Since I've tried this many times using different systems (uniscan 1.83, tsdiag, alfadiag) and failed I thought i'd give multiecuscan a try!

Now then, due to my playing about with uniscan 1.83, I have 2 socketcom serial cards. These work great in DOS and Windows and there are no driver issues.

I have seen lots of of configuration info for the FTDI chip based cables but none for serial. What setting should I use? I cannot decrease the buffer size and I cannot connect at 10400bps...is this an issue?

In the past I've successfully connected Uniscan on my laptop (i must be one of the few in the UK that managed it!) with the engine ECU. However I get no response from either airbag or bosch ECU in multiecuscan.

Is there a way to see a more "verbose" connection screen?
Last edited by buellboy on 01 Feb 2011, 21:28, edited 1 time in total.
buellboy
Posts: 7
Joined: 29 Jan 2011, 22:17

Re: Advice for Serial to OBD connection on Bosch Motronic 2.

Post by buellboy »

P.S I have a serial to OBD and OBD to fiat 3-pin cable. These are just cheap ebay jobbies but I have checked continuity on the cable and i have the following:

Serial 9-pin | OBD | Fiat 3 Pin Looking at it with the pin safety tab on the right, (Pin1¤ Pin2¤¦ Pin3¤)

4 ============> 7 ========>Pin 3 (K-line?)
1=============> 5 ========>Pin 2 (Middle pin) + Black crocodile clip (not all fiat 3 pin cables have this)
2=============> 4 ========>Pin 2 (Middle pin) + Black crocodile clip (not all fiat 3 pin cables have this)
8=============> 15 ========>Pin 1 (L-line?)
9=============> 16 ========>Red crocodile clip (Should i be worried about passing 12V into my card?)
Last edited by buellboy on 01 Feb 2011, 12:57, edited 1 time in total.
buellboy
Posts: 7
Joined: 29 Jan 2011, 22:17

Re: Advice for Serial to OBD connection on Bosch Motronic 2.

Post by buellboy »

Can anyone help? I just need the best settings to use on a serial port & pls let me know if the cable is wired correctly!
buellboy
Posts: 7
Joined: 29 Jan 2011, 22:17

Re: Settings for serial connection

Post by buellboy »

Anyone?? :cry: :cry:
alfa156sarajevo
Posts: 870
Joined: 12 Feb 2010, 09:03
Location: EU, Germany

Re: Settings for serial connection

Post by alfa156sarajevo »

So you have an OBD cable (interface) with serial connector (not a USB)?
What kind of OBD cable (interface) do you have?

The only thing that I know about VAG COM KKL SERIAL interfaces that they do not work on WIN. 7 or WIN. VISTA!
They need an older operating system! :roll:
Coded Keys & CODE card for Alfa Romeo, Fiat and Lancia cars
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