Good day
My name is Tomek. I come from poland.My hobbys are electronic, programming (especially MCU) and ofcourse autodiagnostic.I would like to test my own interface (with max 232) on german opel corsa 1.0 2000y equipped with motronic 1.5.5 ECU.In obd socket thera are pins 3,4,5,7,11,16 used so i think thatthis is ISO9141 . My problem is that there is no voltage on pin 7, even after switching the ignition on.Is this situation normal.In my interface i use a zener diode and a pull up resistor so there is 11V on the K line.What is also interesting there is no L line.I dont wont to damage the ECU so plese help me
regards Tomek
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<DIV><FONT face="Arial CE" size=2>Good day<BR>My name is Tomek. I come from
poland.My hobbys are electronic, programming (especially MCU) and ofcourse
autodiagnostic.I would like to test my own interface (with max 232) on german
opel corsa 1.0 2000y equipped with motronic 1.5.5 ECU.In obd socket thera are
pins 3,4,5,7,11,16 used so i think that this is ISO9141 . My problem is that
there is no voltage on pin 7, even after switching the ignition on.Is this
situation normal.In my interface i use a zener diode and a pull up resistorso
there is 11V on the K line.What is also interesting there is no L line.I dont
wont to damage the ECU so plese help me</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face="Arial CE" size=2>regards Tomek</FONT></DIV></BODY></HTML>
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Received on Mon Jul 16 00:18:28 2001
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