Diagnostic Port Power

[bimerok]

Not to steal the thread, but I have the same problem. I connected everything and everything seems to be working, except my diagnostic connector does not work as either. I don't know if there is something else that needs to be connected at C101/x20 connection???

If anyone has any info on this please reply. Its s50 to 91 325i

Thanks.

[jlevie]

Look at:

http://wedophones.com/BMWManualsLead.htm

for wiring diagrams

[1990m3]

Pin 14 has power, but the code reader didn't work the one time I tried it. I don't have a wiring diagram

[equate975]

If it doesn't have power you probably have a problem. Did you hook everything up right???

I have the schematics let me dig them up.

[1990m3]

nobody knows which wire needs power for the coder reader to work?

[1990m3]

I have been reading the archives but I can't find a definitive answer to my question.

'95 M3 OBDI Harness...

Which wire terminal needs power on the diagnostic port for a code reader to work properly? Pin 14 (big red wire) has power on my connector but I believe i read that Pin 16 (Green/White wire) should have power with the key in the "ON" position. Any advice or tips? I took my harness apart tonight so I could fix the problem, pretty sure it's Pin 16 but looking for some more knowledgeable confirmation.

Thanks