Re: Protocol

i am in Belgium.
can you one know it with the chassis number ?
where can one download the software?
which is wiring to be used?
Thanks
Pascal

Hi Pascal,



I have been struggling to find out how I can read my ECU fault codes. I have
a '97 Saab 900S 2.3NA Talladega with a Bosch Motronic Part Number M10.2.3.
It' is ODB II compliant as the car was not destined to the North American
market. (I'm in New Zealand).



Tonight I have just found out how to get the CEL to flash the codes. What I
had to do in addition of momentary grounding pin 6 of the diagnostic plug
for ½ to 4 secs after the ignition had been switched on II found the
following to work. I had a LED in series with a 4.7K ohm resistor and
connected this to pins 16 (12Vdc) and pin 7 (K Lead) expecting to see flash
codes on the LED. However I got code 12 from the flashing of the CEL. I then
found the following information on my WIS CD.



With the ignition switch in the Drive position, the voltage applied to ECU
pin 55 (Diagnostic plug Pin 7) is about 8 V and Batt+ when the ISAT is
connected.

The voltage applied to ECU pin 13 (Diagnostic plug pin 6) is zero (0 V),
regardless of whether the ignition is ON or OFF (the ISAT grounds pin 13
when the L lead is used to activate system functions).



So tomorrow I reckon that all I have to do is apply 12Vdc from the
Diagnostic plug Pin 16 to Diagnostic plug Pin 7 and to be on the safe side
through a 4.7K ohm resistor.



Cheers - Martin



"Pascal" <pascal.liegeois"au-diable-les-spams!"@easynet.be> wrote

i am in Belgium.
can you one know it with the chassis number ?
where can one download the software?
which is wiring to be used?
Thanks
Pascal

on this site, http://www.swedishwrench.com/ I have a motronic 4.1

Pascal

Hi pascal,

I think your car might have a M2.10.3 and not a M4.1 as it would be for the
American Market and ODBII

Martin

"Pascal" <pascal.liegeois"au-diable-les-spams!"@easynet.be> wrote

on this site, http://www.swedishwrench.com/ I have a motronic 4.1

Pascal