1994 Buick Regal Custom  has the  12 pin  OBD1 connector.   This

connector is missing the B (diagnostic pin).  All other pins are there.

I was hoping to be able to jumper this to clear the SES history,  and

also to use as a diagnostic tool,  because jumpering the pin to ground

activates a lot of solenoids for troubleshooting purposes.

It looks as though the pin was intentionally left out...

Is there a workaround for this problem....???

(I already have an xray scan tool which does not clear SES codes and can't afford a tech1
for home car repair use).

Thanking you in advance...

Bryan