1995 Grand Prix OBD

ChiliP

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Trying to figure out how to pull codes on a 1995 Grand Prix. I've read about the shorting the A & B pins trick with OBD1 but I don't have a B pin. Picture attached.

Do I have OBD1 with an unusual pin setup and I just need to short different pins? Or is this OBD1.5 and I have to buy a fancy scanner?
 

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