[Diy_efi] Bosch Motronic Fiat comms
Mike Bilton
mikebilton at freeuk.com
Fri Dec 20 16:05:56 GMT 2002
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Hi,
I've been looking into this for sometime, and thought perhaps someone on =
this group could point mein the right direction.=20
I'm trying to set up a system such that I can communicate with the ECU =
on my Fiat Coupe (1997 20V turbo), using a laptop, a suitable interface =
and home written software. This is to enable me to read fault codes, =
look at engine parameters etc.
The ECU is described as a Bosch Motronic 2.10.4 0 261 204 483 46476758 =
XEBM4483. The interface is a bi-directional K line using 'standard bosch =
protocol'.=20
I think I understand the K-line hardware side (I have the baud rates =
etc) and it looks relatively easy to make something up. The difficulty =
comes in knowing what codes/ commands are sent to the ECU to get a =
response.
I've had a lot of searches on the internet and come over things like =
OBD, OBD II, CAN, but I'm confused as to which, if any, apply to this =
car/system. What is the 'standard bosch protocol' my workshop manual =
refers to?
Can anybody tell me where I can find the necessary information, if it is =
in fact available,
Many Thanks
Mike Bilton
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<DIV><FONT face=3DArial size=3D2>Hi,</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>I've been looking into this for =
sometime, and=20
thought perhaps someone on this group could point mein the right =
direction.=20
</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>I'm trying to set up a system such that =
I can=20
communicate with the ECU on my Fiat Coupe (1997 20V turbo), using a =
laptop, a=20
suitable interface and home written software. This is to enable me to =
read fault=20
codes, look at engine parameters etc.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>The ECU is described as <SPAN=20
style=3D"FONT-FAMILY: Verdana">a Bosch Motronic 2.10.4 0 261 204 483 =
46476758=20
XEBM4483. The interface is a bi-directional K line using 'standard bosch =
protocol'. </SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-FAMILY: Verdana"></SPAN></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-FAMILY: Verdana"></SPAN></FONT><FONT face=3DArial =
size=3D2><SPAN=20
style=3D"FONT-FAMILY: Verdana">I think I understand the K-line hardware =
side (I=20
have the baud rates etc) and it looks relatively easy to make something =
up. The=20
difficulty comes in knowing what codes/ commands are sent to the ECU to =
get a=20
response.</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-FAMILY: Verdana"></SPAN></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2><SPAN style=3D"FONT-FAMILY: =
Verdana">I've had a lot=20
of searches on the internet and come over things like OBD, OBD II, CAN, =
but I'm=20
confused as to which, if any, apply to this car/system. What is the =
'standard=20
bosch protocol' my workshop manual refers to?</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-FAMILY: Verdana"></SPAN></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2><SPAN style=3D"FONT-FAMILY: =
Verdana">Can anybody tell=20
me where I can find the necessary information, if it is in fact=20
available,</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-FAMILY: Verdana"></SPAN></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2><SPAN style=3D"FONT-FAMILY: =
Verdana">Many=20
Thanks</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-FAMILY: Verdana"></SPAN></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2><SPAN style=3D"FONT-FAMILY: =
Verdana">Mike=20
Bilton</SPAN></FONT></DIV></BODY></HTML>
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